No está claro cuán grande es el papel de los antibióticos https://antibioticos-wiki.es en las relaciones competitivas entre los microorganismos en condiciones naturales. Zelman Waxman creía que este papel era mínimo, los antibióticos no se forman sino en culturas limpias en entornos ricos. Posteriormente, sin embargo, se descubrió que en muchos productos, la actividad de síntesis de antibióticos aumenta en presencia de otros tipos o productos específicos de su metabolismo.

Microsoft word - march-2013.doc

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 271-277
Comparative study of copper precursors for synthesis of CuO
nanoparticles by ultrasonic-assisted thermal decomposition method
Ahmad Rahnamaa,b, Mehrnaz G harag ozl oua* and Amir Reza Gard esh zadeha
a Department of Nanotechnology and Nanomaterials, Institute for Color Science and Techn ol ogy, P.O. Box 16765 -654, Tehran, Ir an E-mail : gharagozlou@icr c.ac.ir Fax : 98-21-22947537 b Azad University, Shahr-e-Rey Branch, Tehran, Iran M anuscript recei ved online 07 M arch 2012, revised 30 April 2012, accepted 02 M ay 2012 A bs t ra ct : I n t hi s wo r k, CuO na no p a rtic le s we re s y nt he s i ze d by an ult ra s o ni c as s is t e d t he rm al
de c o mp o s it io n me t ho d us i ng di ffe re nt c o ppe r pre c u rs o rs i nc l ud i ng c op pe r ac e ta te ( Cu- A) , c oppe r
nit rat e ( C u- N) a nd c o ppe r c hl o ri de ( Cu- C) . T he s a mp le s ynt he s i ze d by c o ppe r ac e t ate ( Cu- A) wa s
c o ns is te d of fi ne r a nd mo re uni f o rm p a rtic le s t ha n c oppe r nit ra te ( Cu- N ) whic h re s ulte d i n a wi de r
ba nd g a p. O n t he ot he r ha nd, c op pe r c hl ori de as a p re c u r s or re s ul te d i n a pl ate - l i ke mo rpho l og y. I n
c o mp a ris o n wit h t he b ul k CuO , t he C u- A s a mp le s ho we d a l a rge r b a nd g a p whic h was att ri bute d t o
i ts p art i c le s i ze . I t was c o nc l ude d t ha t di f fe re nt c op pe r p re c u rs ors ha ve s i g ni f ic a nt e f f e ct s on t he
pa rt ic l e s i ze , m orp ho l og y as we ll as t he b a nd g a p of t he f i nal p owde r.
K e y wo rds : Cop pe r ox i de , na no pa rtic l e s , ult ra s o nic - as s is te d me t ho d, t he r ma l de c o mp os i ti o n, b a nd ga p.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 279-284
Construction of a new Pr3+-PVC membrane sensor based on 2,3,4,5-tetra-
(4-pyridiyl)-thiophene
Somayeh Hari mia, Has s an Ali Zamanib*, Azadeh T adj arodic and Keyvan Bijan zadc
a Young Researchers Club, Quchan Branch, Islamic Azad University, Quchan, Iran b Department of Applied Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran c Department of Chemistry, Iran University of Science and Technology, Tehran, Iran M anuscript recei ved online 20 A pri l 2012, accepted 02 M ay 2012 A bs t ra ct : A n i o n s e le c ti ve el e c t rode P r3 +- P V C me mb ra ne s e ns o r c o nt ai ni ng 3 % 2, 3, 4 , 5-t e t ra- (4 -
py ri d i yl)- t hi op he ne (T P T) as a n io no pho re , 3 % s odi u m t e t ra p he ny l b ora te ( N a TP B) as a n a ni o nic
ad di ti ve , 64% nit ro be nze ne ( NB ) as s ol ve nt me di at o r a nd 3 0% poly( v i nyl c hl o ri de ) was c o ns t ruc te d.
T his e le c t ro de ha s a wi de l i ne ar dy na mic ra ng e f ro m 1 . 0 × 1 0 – 6 to 1 . 0 × 10– 2 M wi t h a Ne r ns ti a n s l o pe
of 2 0. 2 ± 0. 5 mV pe r de c a de a nd a l o w de te c t i o n l i mit of 5 .3 × 1 0– 7 M i n t he p H ra nge of 3 . 0 – 8. 4, whi le
t he re s p o ns e ti me wa s ra pi d ( ~5 s ). T he de ve l o pe d el e c t r ode s ho ws a g oo d s e le c ti vi ty f or P r3 + io ns
re s pe c t to a l arg e nu mbe r of a l kal i, al ka li ne e a rt h, t ra ns it i on a nd he a v y me ta l i ons . I t was e m plo ye d
as an i nd ic at o r e le c t ro d e i n t he p ote nti o me t ric ti t ra t io n of P r3 + i o ns wi t h E DT A. T his s e ns o r wa s a ls o
t o t he de t e r m i na ti on of fl uo ri de io n i n m o ut h wa s h p r e para t i ons a nd t he m oni t o ri ng of P r3 + i n
m ix t u res of t h re e diffe re nt i o ns .
K e y wo rds : P V C me m bra ne , s e ns o r, p ote nt io me t ry , i on-s e l e c ti ve e le c t ro de .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 285-294
Synthesis, reactions, physicochemical characterization and biological
studies of titanium(IV) Schiff base complexes
Raj Kumar Dubey*, Nali ni Dwi vedi and Avadhes h Prat ap Si ng h
Syntheti c In or ganic and Met al lo-or gani c Resear ch Laborat or y, Depart ment of Chemi str y, Uni ver sit y of Allahabad, Allahabad -211 002, Uttar Pradesh; E-mail : rajalkoxy@ yah oo.com M anuscript recei ved online 24 A pri l 2012, revised 01 May 2012, accepted 03 M ay 2012 A bs t ra ct : S o me ti t ani u m(I V) c om pl e xe s of t he t ype [ Ti ( Cl) 4 –n(L)n] (1 -2 ), [ whe re n = 1 o r 2 , L = Sc hif f
ba s e s ; s al i c yl i de ne -2 - me t hy-1 - a mi no be nze ne (L H ) ] ha ve be e n s y nt hes i ze d b y t he re ac t io ns o f
t it a ni um(I V) c hl o ri de wi t h s odi u m s al ts of Sc hiff bas e s i n 1 : 1 a nd 1 : 2 mol ar rat io (s ) i n M e O H- C6 H6
re s pe c ti ve l y. I nte ra c ti o n of c om pl e x ( 1) wi t h s od i um s al t s of s a lic yl i de ne -2 - a mi no py ri di ne [ Na(L ′ )],
a nd te t ra is o p ro pox ya l umi na te i n e q ui mo l a r ra ti o p rod uc e s mix e d l ig and c o mp le x of t he ty pe ;
[ ( Cl) 2(L)Ti (L ′)] (3 ) and bi met a l lic co mp lex [( Cl )2Ti ( L){ A l(OP ri )4} ] (4 ) respect i vel y. Reac t i o n of
c o mp le x ( 3) wit h s od i um i s opro p ox i de yi e l ds t he c om pl e x [(O P ri)2( L) Ti( L ′)] ( 5) i n T HF- C6 H6 mix t u re.
T he s e c o mp le x e s have be e n c ha ra c te ris e d b y m el t i ng p oi nts , e le me nt al a na l ys is , a nd s pe c t ra l [I R,
NM R ( 1 H, 1 3 C), M S and P owd e r XRD ] s t ud ie s . T he rm og ra vi me t ri c anal ys is ( TG A) c urv e s ho ws m ult i -
s te p de c o mp os iti o n wi t h t he f o r ma ti o n of me t al ox i de re s i d ue . SEM ana l ys is pro v i de s t he mo rp ho l og y
of t he c o mp le x e s . Ant ib ac te ri a l ac ti vi ty s ho wi ng t ha t t he t it a ni um (I V) c om ple x e s we re f o u nd t o be
m o re po te nt t ha n Sc hi ff b as e s ag ai ns t s o me s e le c te d bac te ria l s t rai ns .
K e y wo rds : Sc hif f b as e s , tit ani u m(I V) c o mp le x e s , 1 H, 1 3 C N M R, M as s , T G A, SEM , anti bac te ri al ac t i vit y.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 295-300
Equilibrium of the dinuclear complex formation between organotin(IV) and
metal-Schiff base complexes in solution
Maryam Moha mmadi kis ha*, Zahra Seyed zadehb and Mozaff ar As adic
a Faculty of Chemistry, Kharazmi University, Tehran, Iran, E-mail : moh ammadikish@ yah oo.com Fax : 98-26-34551023 b Chemistry Department, Faculty of Sciences, Kermanshah Branch, Islamic Azad University, Ker manshah, Iran c Chemistry Department, College of Sciences, Shiraz University, Shiraz, Iran M anuscript recei ved online 19 January 2012, revised 24 M arch 2012, accepted 10 M ay 2012 A bs t ra ct : A U V- Vi s s pe c t ro pho t o me t ric s t ud y of t he ad d uc t f o rm at i o n of MI I (s al a b za) , M I I (5 -O M e-
s al ab za ), M I I ( 5-B r-s al ab za) a nd M I I (5 -NO 2- s al ab za ) ( wh e re M = Co, Cu a nd s a la b za - H2 = N, N′ -
bis (s al ic yli de ne )-2 - a mi no be n zy l a mi ne ) as d ono r wi t h M e 2S nCl2, Ph2S nCl2, n-B u2 SnCl2 a nd P h4S n a s
ac c e pt o r has be e n i nve s tig ate d i n DM F . F o rm at i o n co ns t a nts a nd G i b bs f re e e ne rg ie s we re me as ure d
f or 1 : 1 ad duc t at 2 5 ºC. T he dat a re f i ne me nt wa s c a r r ie d out wi t h t he SQ U AD 84 p rog ra m. T he
t re nd of fo r ma t io n c o ns t ant s of me ta l Sc hi ff bas e c o mpl e x wit h o rg anot i n(I V) c o mp o unds fo ll ows t he
[M (5 -O M e -s al a b za) ] > [M ( s al ab za ) ] > [ M (5- B r-s al a b za )] > [ M (5 -NO 2-s ala bza )]
Co > C u
M e 2SnC l2 > P h2 SnC l2 > n-Bu2 S nCl2 > Ph4S n
K e y wo rds : F o r ma ti o n c o ns ta nt , c o bal t, c op pe r, Sc hi f f b as e c o mple x , ti n add uct .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 301-307
Molecular and crystalline architectures of a luminous dinuclear
cadmium(II) dicyanamide compound containing a tetradentate Schiff base
as an end-capping ligand
Sumit ra Das, As his Kumar Maji, Kis hal ay Bhar, Subhasis h Kund u, Raj ars hi Ghosh and
Bari ndra Kumar Ghos h*
Depart ment of Chemistr y, The Uni versit y of Burdwan, Burdwan-713 104, West B en gal, India E-mail : barin_1@yah oo.co.uk Fax : 91-342 -2530452 M anuscript recei ved online 19 A pri l 2012, revised 11 May 2012, accepted 14 M ay 2012 A bs t ra ct : T he di n uc le a r c o mple x [ C d(L) ( µ1,5 -dca) ] 2(PF6)2.M eO H (1) [L = N, N ′-(bis( p y ri di ne-2 -
yl ) be n zy li de ne ) -1 , 3 -p rop a ne di a mi ne ; dc a = dic y ana mi de ] has be e n i s o la te d f oll o wi ng a n e arl ie r
p roc e dure a nd s t ruc t ure is de te rmi ne d b y X- ra y diff ra c t i o n me as ure me nt. St ruc t u ra l a nal ys i s s hows
t hat e ac h c a d mi u m(I I ) c e nt e r i n 1 is loc at e d i n a di s to rt e d oc t a he d ral e nvi ron me nt c o o rdi nate d b y t he
f ou r N a to ms of L a nd t wo nit ri l e N at o ms of bi b ri dge d µ1,5- dca units. I ndivid ua l din ucle ar units of 1
a re a s s oc ia te d by π. . . π a nd C– H. . . π i nte ra ct i o ns re s ulti ng i n a 2 D s he e t s t ruct ure whic h is f u rt he r
s t re ng t he ne d by mul ti ple C– H. . . F a nd C– H . . . N hy d ro g e n bo nd s . 1 d is p l ay s hi g h-e ne rg y i nt ra l i g an d
1 ( π- π* ) fl uo re sc e nc e i n DM F sol ut i o n at ro om te mp e rat ure .
K e y wo rds : Di nuc le a r c admi um (I I ), Sc hi f f b as e, dic y a na mi de b ri dg e , X- ra y s t r uc t ure , fl uo re s c e nc e .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 309-317
Kinetic spectrophotometric determination of escitalopram oxalate in bulk
and pharmaceutical formations using alkaline potassium permanganate
Sal ma A. Al-Tami mi*, F at ma A. Aly and Ohoud M. Al-Otaibi
Depart ment of Chemistr y, C ollege of Scien ce, Women St udent -M edical Studies and Sci en ce Sections, King Saud Uni ver sit y, P.O. Box 22452, Ri yadh 11495, Saudi Arabi a M anuscript recei ved online 29 A pri l 2012, revised 14 May 2012, accepted 15 M ay 2012 A bs t ra ct : S i m pl e a nd s e ns it i ve ki net ic s pe c t ro pho t o me t ric m e t ho d s we re e s t abl is he d f o r t he
de te r mi na ti o n of e s c it al op ra m ox al a te i n b ul k a nd i n its p ha rm ac e ut ic al pre pa rat i o ns us i ng al ka li ne
po ta s s i u m pe rma ng a na te as a n ox i di zi ng ag e nt. T he me t hod s i nv o l ve de te rmi na t i o n o f e s c it a lo p ra m
ox a l ate b y ki ne tic s t ud ie s of i ts ox id at io n at ro o m te mpe rat ure f o r a fi x e d ti m e of 1 5 m i n. T he
ab s o rb anc e o f t he c ol o re d ma ng a na te i o ns was me as ure d a t 6 1 0 nm. Al te rna ti ve ly, t he de c re as e i n t he
ab s o rb anc e of pe r m a ng a na te up on a ddi ti o n of t he s t ud ie d dr ug wa s als o me as ure d a t 5 2 5 nm. T he
ab s o rb anc e -c o nc e nt ra t i o n pl ots i n bot h p ro c e du re s we re re c t ili ne a r o ve r t he ra ng e of 4. 0– 2 5. 0 µg mL –
1 . T he di ffe re nt expe ri me nt al p ara mete rs a ffecti ng t he de vel op me nt we re c a ref ull y s t udie d a nd
op ti m i ze d. T he de te r mi na ti o n of e s c i t al o pra m ox al at e b y t he fi xe d c o nc e nt ra ti o n a nd i ni t i al ra te
m e t ho ds i s a l s o f e as i bl e wit h t he c a li b ra ti o n e quat i o ns o b tai ne d b ut t he fix e d ti me me t ho d has be e n
f ound t o be mo re ap pl ic abl e . Bo t h p ro c e d ure s we re a ppl ie d t o t he de te rmi nat i o n of e s c it al o p ra m
ox a l ate i n f o rm ul at i o ns . T he re s ults o bt ai ne d we re i n g o od ag re e me nt wit h t hos e o bt ai ne d us i ng
re f e re nc e me t ho ds . T he p rop os e d me t hod s have a g re a t v al ue i n t hei r ap plic at i on t o t he a nal ys i s of
e s c i ta l opra m ox al ate i n qual it y c ont ro l l abo ra t o rie s .
K e y wo rds : Es c i t al op ra m ox al ate , ki ne ti c s pe c t ro p hot om et ry, fix e d ti me me t ho d, v ali d ati o n, p ha r mac e ut ic a l
p re pa ra ti o ns .
J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 319-323
Study on the catalytic synthetic preparation of rubber anti-oxidant
2,2,4-trimethyl-1,2-dihydro-quinoline polymer
Yu Li ua,b*, Qingyu G aoa, Lianxi n Li ub and S huti ng Lib
a College of Chemistry and Engineering Technology, China University of Mining and Techn ol ogy, Xuzhou 221116, C hina bXuzhou College of Industrial and Technology, Jiangsu Xuzhou 221140, China M anuscript recei ved online 04 January 2012, revised 08 M arch 2012, accepted 10 M ay 2012 A bs t ra ct : T he p a pe r is o n t he c at a ly tic s y nt he t ic p re pa ra tio n of p ro duc ti o n of a r ub be r a nt i- ox i da nt
2 , 2, 4 -t ri me t hy l-1 , 2 -di hy dro - q ui no li ne po l y me r ( ( C12 H15 N) n, n = 2 -4 R D). T he pro cess uses o ne ste p
a nd s ol ve nt- f re e p re p arat i on of RD, wit hout us i ng hyd ro c hl ori c ac i d as a c at al ys t. A s ol i d re s i n i s
us e d as a c a ta ly s t a nd re c yc li ng me t ho d f ol lo we d. Us e of t he p ro c e s s i nc re as e s t he ef fe c t iv e
c o nc e nt rat i o n of R D (t he c o nt e nt o f di me r, t ri me r a nd te t ra me r of RD) f ro m 4 6 t o 7 5% . No wa s te
wa te r is pro d uc e d a nd e nvi ro n me nt a l po ll ut io n ha s be e n c ont ro ll e d.
K e y wo rds : Rubbe r a nti ox i da nt , RD c at a ly s t, s oli d re s i n.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 325-329
Corrosion inhibitory effects of some Mannich bases on mild steel in acid
media
P ooja S harma, R. K. Upadhyay* and Al ok Chat urvedi
Syntheti c and Sur face Science Laborat or y, Depar tment of Ch emi st ry, Government C ollege, Ajmer -305 001, Rajasthan, India, E-mail : alwayz_r ajesh @yahoo. co.in M anuscript recei ved 27 January 2011, revised 04 M ay 2012, accept ed 14 M ay 2012 A bs t ra ct : W e ig ht l os s a nd p ote nti o me t ric me t ho ds have be e n us e d t o s t ud y t he c or ro s i o n i nhi b iti o n
of mi ld s te e l i n ac i dic s ol uti o n ( HC l a nd H2SO4) b y f o ur n ewl y s y nt hesise d M anni c h b ases vi z. 3 - ox o-
3 -p he nyl - N, N- di me t hy l
pro p ana mi ne
hy d roc hl ori de
3 , 5 -dioxo -5 -p he ny l- N, N- di me t hy l
pe nt a na mi ne hy dro c hl o ri de (M B2), 2, 2 -di met hyl-3 - ox o- N, N- dimet hy l b ut a na mi ne hy droc hlo ride
( M B3) a nd 3 - ox o- N, N -d ime t hyl buta na mine hy dro c hlo ride ((M B4) . Co rros io n in hibit io n e ffic ie nc y
ha ve be e n f o und to depe nd up o n t he c o nc e nt ra t io n o f i nhi bi t or a s we l l as t hat of ac id. I nhi bi ti o n
e f fic ie nc y i nc re as e s wit h i nc re as i ng c o nc e nt ra ti o n o f i nhi bit o r and de c re as e s wi t h i nc re as i ng
c o nc e nt rat i o n of ac i d. I nhi b iti on e ff i c ie nc y i s mo re i n HC l t ha n i n H2 SO4. I nhi bit i o n e f fic ie nc y wa s
f ound ma x i m u m up to 9 2 . 7 9% i n HCl s ol ut io n whe re as it is 7 5 . 6 5% in H2SO 4.
K e y wo rds : Co rro s io n, i nhi bit i o n e ffi c i e nc y, M annic h ba s es , we ig ht l os s , po te nt i al, s urf ac e c ove ra g e .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 331-336
Spectroscopic characterization of some copper(II) complexes
Rekha Rani , Raj eeva Ranj an, N. C. Bhatt acharjee, S. Sharma* and Afshan Surai yaa
Uni ver sit y Depart ment of Chemi str y, Magadh Uni versit y, Bodh Gaya-824 234, Bihar, India a G.B.M. College, Gaya-823 001, Bihar, India M anuscript recei ved 29 Novem ber 2011, revised 02 May 2012, accepted 14 M ay 2012 A bs t ra ct : 1 -( P he ny l a zo )-2 - na pht ho l ( P AN H) has t h re e p ot e nt i al d o no r s i te s a nd t hus i t ac ts a s a ve r y
g oo d c he l at i ng ag e nt . T his l i g and has be e n us e d f o r c om pl ex ati o n wi t h C uI I io ns to s ynt he s i ze t he
c o mp le x e s o f ge ne ra l f o r mul a C u(P AN )2 L n, whe re L = second a ry l ig a nds l i ke p yri di ne, pi c ol i ne, H2 O
a nd n = 0 , 1 a nd 2 . T he s e c o mp le x e s have be e n c h a rac te ri ze d by t he i r e le me ne t al ana lys is ,
c o nd uc ti vi ty me as ure me nt, mag ne tic mo me nt at ro o m t e m pe ra t u re , i nf ra re d s pe c t ra a nd e le c t ro ni c
s pe c t ra. T he l ig a nd P AN H is fo u nd to ha ve c o o rd i nate d t h ro ug h de pro to nat e d p he no li c ox yg e n a nd
a zo ni t rog e n f o r mi ng a s ix me mbe re d c he l ate wit h t wo c o nj ug ate π-b ond s i n c he l at e ri ng . T he
m ag ne t ic mo me nt va l ue s re ve al t he mo no nuc le a r na t ure o f c o mp le x e s whi l e t he i r e l e c t ro nic s pe c t r a
re ve a l t he g e om e t ry of t he c o mp le x e s . Cu(P AN )2 complex is fo und squa re pla na r while C u( PA N)2L
a nd Cu(P AN )2L2 are f o und s q ua re p y ra mid al a nd tet ra g o nally d ist ort ed oct ac he dra l res pect ive ly.
K e y wo rds : Sq ua re py ra mi da l, te rago na ll y d is t o rte d oc t a he dra l.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 337-346
pH dependent speciation and removal of chromium from environmental
samples using a chelating resin containing derivatised L-methionine
Mili Dutt aa, Debasis Dasb* and Rahul Bhatt acharyac*
a Gopalpur High School, Durgapur, Burdwan, West Bengal, India b Department of Chemi stry, The University of Burdwan, Burdwan-713 104, West Bengal, India E-mail : ddas100in@yahoo.com Fax : 91-342 -253 0452 c Indian Chemical Society, 92, Acharya Prafulla Chandra R oad, Kolkata-700 009, India E-mail : drrahulchem@r edi ffmail .com M anuscript recei ved online 18 A pri l 2012, revised 11 May 2012, accepted 18 M ay 2012 A bs t ra ct : p H de pe nde nt c he mi c al s pe c i ati o n of i no rg a ni c c hro mi um s pe c ie s a nd t he i r re mo val f ro m
e nv i ro n me nt al s a mp le s hav e be e n pe rf o r me d on a c he l ati ng re s i n hav i ng N- (3 -i nd ol y l me t hyl ) L -
m e t hi oni ne mo ie ty. T he nove l t y of t he re s i n i s t hat it c a n bi nd b ot h CrI I I and CrV I at t wo d iffe re nt
p H. T he max i mum s o rp t io n c ap ac it y of t he re s i n f o r C rI I I is 1. 3 7 mm ol g – 1 a t p H 8 . 6 whe re no
s orp ti o n o f CrV I wa s o bs e rv e d. Ag ai n, ma xi m um s o rpt i on of C rV I is 1 . 7 5 2 mmo l g– 1 at pH 4 . 0 whe re
s orp ti o n of C rI I I i s al mo s t nil . W e have obs e rv e d c o mp le te de s o rp ti o n of CrI I I a nd C rVI wit h 3 . 0 m ol
L – 1 H Cl a nd 4 . 0 mo l L – 1 H Cl re s pe c ti ve l y. De te c ti o n li m i t s (t hre e t i me s o f t he s t a nd ard de vi ati o n f o r
bl a n k) f o r CrI I I a nd C rV I has be e n f o und as 0 . 4 mg mL – 1 a nd 1. 3 mg mL– 1 re s pe c ti ve l y. So rp t io n o f
bo t h C rI I I a nd CrV I ha s be e n f o und t o f ol l o w a s ec o nd o rde r ra te l a w. T he de ve l ope d me t ho d ha s be e n
us e d f o r t he c he mic al s pe c i ati o n a nd re m ov a l of c hro mi um f rom di ffe re nt e nvi ron me nt al s a mp le s an d
v ali date d b y s ta nda rd/ re fe re nce me t hod. T he c o nc e nt ra t io n of c hro mi u m has bee n me as u re d by f l a me
at o mi c a bs o rp ti o n s pe c t ro me te r (F AAS ).
K e y wo rds : Chro m i u m, s pe c i ati o n, c he l at i ng re s i n, L - me t hi o ni ne , F A AS.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 347-353
Speciation studies of binary complexes of CoII, NiII and CuII with L-proline
in 1,2-propanediol-water mixtures
P. Bhus hanavat hia, B. Veeraswamib, U. Viplavapras adb and G. Nages wara Raoc*
a St. Joseph’s College for Women (A), Visakhapatnam-530 004, Andhra Pradesh, India b Gitam Institute of Technology, Gitam University, Visakhapatnam-530 045, Andhra Pradesh c School of Chemistry, Andhra University, Visakhapatnam-530 003, Andhra Pradesh, India M anuscript recei ved online 12 A pri l 2012, revised 16 May 2012, accepted 21 M ay 2012 A bs t ra ct : Che mic al s pe c i ati o n of CoI I , NiI I a nd CuI I c o mp le x e s of L - p rol i ne i n 0 . 0– 6 0 . 0% v/ v 1, 2-
p ro p ane di o l- wat e r mix t u re s ma i nt a i ni ng a n io ni c s t re ngt h of 0 . 1 6 mo l L – 1 at 3 0 3 . 0 K has be e n s t ud ie d
p H me t ric all y. T he ac t ive f or ms of l i ga nd a re L H +
2 , L H a n d L – . T he p r e d o m i na n t s p e c i e s d e t e c t e d a r e
M L , M LH a nd M L2. M odels c onta ining dif fe rent numb e r of species we re ref ine d by using t he
c o mp ute r p rog ra m M I NI Q UAD7 5. T he be s t-f it c he mic al m ode ls we re ar ri ve d at b as e d o n s t atis t i c al
pa ra me te rs . T he t re nd i n v a ri at io n of c o mp le x s t a bi l it y c ons t a nts wi t h c ha ng e i n t he di e l e ct ric
c o ns ta nt of t he me di u m is e x pl ai ne d on t he bas is o f e le c t ro s tat ic and no n-e l e c t ros t at i c fo rc e s .
K e y wo rds : Co mple x e q ui li b ri a, c he mic a l s pe c i at i o n, L - pro li ne , 1 , 2 -p ropa ne di ol .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 355-364
Iodide mediated oxidation of arsenic(III) by cerium(IV) in aqueous
sulphuric acid and sulphate media – A kinetic and mechanistic study
M. D. Meti, S. S. Das hyal , S. Y. Gud as al kopp a, R. B. Hallur, R. M. Pandit, S. A. Sappuri,
S. T. Nandibewoor and S. A. Chi mat ad ar*
P. G. Depart ment of Studies in Chemi str y, Karnat ak Uni versit y, Dharwad-580 003, Karnataka, India, E -mail : schimatadar@gmai l.com M anuscript recei ved online 23 February 2012, revised 10 M ay 2012, accepted 22 M ay 2012 A bs t ra ct : A mi n ute (1 0 – 8 mol d m– 3 ) q uant it y o f i odi de me di ate d ox i da ti on of a rs e nic (I I I ) b y
c e ri um( I V) i n a n aq ue o us s ul p hu ri c ac i d a nd s ul p hat e me di a has be e n s t ud ie d s pe c t ro p hot o me t ri c al l y
at 2 5 º C. T he s t oic hi o me t ry i s 1 : 2 , i. e . o ne mo le o f a rs e ni c (I I I ) re q ui res t wo m ol e s of c e ri um(I V). T he
re ac ti o n is fi rs t o rde r e ac h i n c e ri um (I V) a nd i odi de c onc e nt ra ti o ns . T he o rd e r wi t h re s pe c t t o
a rs e nic (I I I ) is le s s t ha n uni ty. I nc re as e i n s ul p huri c aci d c onc e nt ra ti o n i nc re as e d t he ra te . I n s i t u H+
i o n c o nc e nt rat i o n is c a lc ul a te d by t he kno wle dg e o f e q ui li b ri u m c o ns t ants and t he o rde r wit h re s pe c t
t o H+ io n c o nc e nt rat i o n i s f o und t o be l es s t han u ni t y. T he i o nic s t re ng t h di d no t ha ve a ny s ig ni fic a nt
e f fe c t o n t he ra te of reac ti on, whe re as ra te c o ns t a nt i nc re as e d wit h de c re as i ng die le c t ric c o ns ta nt of
t he me di u m. A dde d pro d uct s ce ri um( I I I ) a nd a rs e nic (V) di d not ha ve a ny s ig ni fic a nt e f fe c t on t he
re ac ti o n ra te . T he ac t ive s pe c ie s of ox i dant a nd re d uc ta nt a re Ce ( SO 4)2+ and AsI2+ respect i vel y. A
s ui t able me c ha ni s m is p ro pos e d. T he c at al ytic c o ns t a nt a nd ac ti vati on p a ram e te rs a re de te rmi ne d.
T he re s ul ts o bt a i ne d i n t he p res e nt s t ud y a re s i m i la r t o t hat of bro mi de , c hl ori de and io di de me d ia te d
ox i da ti o n of a nt i mo ny(I I I ) b y c e ri u m(I V) i n aque o us s ul phu ri c ac i d-s ulf ate me d ia a nd a re c o mpa re d
a nd d is c us s e d.
K e y wo rds : K i ne tic s , oxi dati on, me c ha ni s m, a rs e ni c (I I I ), c eri u m(I V ).

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 365-371
Kinetics and mechanism of iridium(III) catalysed oxidation of DL-
methionine by alkaline hexacyanoferrate(III)
B. Dharma Rao, N. Baby Nirmal a and P . Vani*
Depart ment of In or gani c and Anal yti cal Chemi str y, School of Chemistr y, Andhr a Uni versit y, Visakhapatnam-530 003, Andhra Pradesh, India, E-mail : vani _chem@redi ffmail .com M anuscript recei ved online 07 A pri l 2012, revised 04 May 2012, accepted 22 M ay 2012 A bs t ra ct : I ri di um( I I I ) c at a lys e d ox id at io n o f DL - me t hi o ni ne b y he x ac ya no fe rra te (I I I ) was s t ud ie d
s pe c t ro p ho t o me t ri c al l y i n a q ue ous a l ka l i ne me di um at 3 0 ± 0. 1 º C at a c ons t a nt io nic s t re ngt h. A
m ic ro am ou nt of i ri di um (I I I ) was s uffic ie nt t o c a ta l ys e t h e s lo w re ac t i o n be t we e n DL - me t hi o ni ne a nd
he x ac ya nofe r ra te (I I I ). T he re ac t io n is f i rs t o rde r i n b ot h he x ac ya no fe r rat e( I I I ) a nd i ri di u m(I I I )
c o nc e nt rat i o ns . T he orde r wi t h re s pe c t t o DL - me t hi o n i ne is f ra c ti o nal . I nc re as e i n t he al ka li
c o nc e nt rat i o n i nc re as e s t he reac ti on ra te . M e t hi o ni ne s ul fo ne was f ound t o be t he ma i n p rod uc t o f
ox i da ti o n a nd i t wa s i de ntif i e d b y I R and ma s s s pe c t ra. H e x ac y ano fe rra te (I I ), t he ot he r p ro d uc t wa s
f ound to ha ve no e ffe c t o n re ac t i o n ra te . T he ac t i ve s pe c i e s of ox id a nt and c at al ys t a re [Fe ( C N)6] 3–
a nd [I r Cl 3( H2 O) 2O H]– res pecti ve ly. A po ssi ble mec hanis m wa s p rop ose d a nd t he ac ti v ati o n
pa ra me te rs we re c om pute d wi t h re s pe c t to t he s l o w s te p of t he re ac ti o n.
K e y wo rds : O x id at i o n of DL- me t hi o ni ne , he x ac ya no fe r ra te ( I I I ) , iri di um (I I I ), me c hanis m.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 373-379
Visible light irradiate photocatalytic degradation of textile dye with a newly
developed photocatalyst MBIR Dowex 11
R. C. Meena*, R. S. Sindal and Munesh
Phot och emi str y Labor ator y, Depart ment of Chemist r y, Jai Nar ain Vyas Uni versit y, J odh pur -342 001, Rajasthan, India, E-mail : rcmeena007@r ediffmail.com M anuscript recei ved online 11 A pri l 2012, revised 16 May 2012, accepted 29 May 2012 A bs t ra ct : Azo dye ac i d o ra ng e 1 2 cre ate s e nv i ro nm e nt po ll uti o n p rob le ms by re le as i ng tox i c an d
po te nt i al c a rc i no ge nic s ubs t anc e i n t he a q ue ous p ha s e . V is i ble li g ht p hot oc at a ly ti c de g rad at io n o f
ac i d o ra ng e 1 2 was c a r rie d o ut by e mp l oyi ng he te rog e ne o u s p hot oc a ta l ys t me t hyl e ne b l ue i m mo bi li ze d
re s i n (M BI R) Do we x 11 . Phot ode g ra d at i o n e ffic i e nc y was s ma ll whe n t he pho to l ys is wa s c a r rie d o ut i n
t he abs e nce of MB I R D o we x 1 1, a nd i t wa s a ls o ne g l ig ib l e i n t he a bs e nc e o f U V l i g ht. T he o pt i mu m
v al ue s of di ffe re nt p a ra me te rs whic h i nfl ue nc e t he de g r adat i o n o f azo d ye s uc h as c at a lys t dos e ,
c o nc e nt rat i o n of d ye , p H of t he s ol uti o n, lig ht i nte ns i t y a nd ra d ic a l q ue nc he r was s ys te mat i c al l y
s t udie d. T he dye s o l ut i o n c o ul d be c o mp le te l y de c ol ori ze d a nd e ffe c t ive ly mi ne ra li ze d, wit h ave rag e
re m ov al e ff i c ie nc y l a rg e r t ha n 9 5 % fo r a re ac ti o n t i me 1 6 0 mi n. P hot oc at al yt ic de g ra dati o n of t he
dye s f ol l o ws ps e udo-f i rs t o rd e r ki ne ti c s . CO 2 a nd H2O a re obt ai ne d o f si mple mine ra lize pro d uct s.
K e y wo rds : P ho to de g ra d at io n, i mm ob il i za ti o n, p ho t oc at a ly s t, ac id o ra ng e 1 2 , re mo v a l e ff ic ie nc y, M BI R
Do we x 11 .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 381-385
An efficient method for the preparation of hydroxamic acids
Xi-Ai Gao, Xian-X ue Wang, Hao Yan, Jian Li, Ru-L ong Yan and Guo-S heng Huang*
St ate Key Labor ator y of Applied Organic Chemistr y, Lanzhou Uni versit y, Key Laborat or y of Nonferr ous Met al C hemistr y and R es our ces Utilization of Gansu Provin ce, Lanzh ou 730000, P. R. C hina, E-mail : hgs@lzu.edu.cn Fax : 86-931-8912582 M anuscript recei ved online 06 A pri l 2012, revised 10 May 2012, accepted 11 M ay 2012 A bs t ra ct : Re ac t io ns o f ac yl c hl ori de s wi t h hyd rox yl a mi n e hy d roc hl ori de a nd N a HCO 3 g ene ra te t he
c o r re s p o nd i ng hyd ro x am i c ac id pro d uct s i n e t hyl ac et at e and wa te r at ro o m te mp e rat ure f or 5 mi n.
T his is a s i mple a nd e ff ic ie nt m e t ho d t o s y nt he s i ze a wi de ra ng e of hy drox a mic ac i ds f ro m c a rb ox yl ic
ac i ds i n e x c e lle nt y ie l d a nd hig h p u ri ty aft e r s i mple pos t-t re at m e nt wit ho ut c h ro ma tog ra p hi c
p uri fi c at i on. I n t hi s p roc e s s , t he hig hl ig ht s a re t he s i mp le s e p ara t io n of p ro duc ts a nd c he ap l y
a va il a ble re ag e nts .
K e y wo rds : Hy dro x a mi c ac i ds , c arb ox y lic ac ids , ac yl c hl o ri de s , hyd rox yl a mi ne hyd roc hl o ri de.

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 387-391
Aromatic oil composition and microstructures of some Indian cultivars of
Cuminum cyminum L. in raw and roasted condition
Tani ma Modak Dhara, Mahua G hos hb* and D. K. Bhatt acharyyac
a Central Instrument Facility, Main Campus, Bose Institute, Kolkata-700 009, India b Department of Chemi cal Technology, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, India E-mail : mahuag@gmail. com, mgch emt ech @cal univ. ac.in Fax : 91-33 -23519755 c SOCSAT, Bengal Engineering and Science University, Shibpur, Howrah-711 103, West Bengal, India M anuscript recei ved 24 June 2011, revised 10 M ay 2012, accepted 14 M ay 2012 A bs t ra ct : T he a ro ma t ic oi l is e x t rac te d f ro m t hre e c ul ti va rs of c umi n g ro wn i n di ffe re nt re g i o ns of
I nd i a b y s i mp le way of s o l ve nt e x t ra c t io n proc e s s us i ng HP L C g ra de pet rol e u m e t he r (b o ili ng p o i nt
ra ng e 40 – 6 0 º C). T he c o mp o s it io n of e xt rac te d o il is a nal y ze d b y G as C hro ma t og ra phy a nd M a s s
Spe c t ro me t ry i n ra w a nd ro as te d c o nd it io n. I t is f o und t hat i n c as e o f t h ree c ulti va rs s o me ne w
c o mp o und s a re g e ne rat e d d uri ng ro as t i ng p re s uma bl y due to M ai l l a rd re ac t i o n and t he y a re dif fe re nt
i n pe rc e nt ag e a nd c o mp os iti o n. G CM S s t ud y re ve als t hat hai ry c umi n v a rie t y o f R aj as t ha n i s
e nric he d wit h v a ri o us c o mp ou nds o f e s s e nt i a l oi l t han o t he r t wo va ri e ti e s . T he p ro p ort i on pe rc e nt o f
s om e c o mp o und s Al pha pi ne ne (1 . 3 1 % ), c ume ne ( 16 . 1 8% ), c a re e n (27 % ), Al p ha- phe ll a nd re ne (1 8 % )
a nd c o um a ri n ( 4. 2% ) i n raw hai ry c umi n a re hig he r t han ot he r t wo c ul t i v ars of Raj as t ha n a nd W e s t
B e ng al re s pec t i ve l y. T hes e pe rc e nt co mp o s it i ons are c ha ng e d i n ro a s te d c o nd it i o n. T he mic r o
m o rp ho l ogi c al c hara c te rs w he n vie we d und e r s c anni ng e le c t ro n mic ro s c o pe s ho w s ome di ffe re nce s i n
s ee d s t r uc t ure s a nd oi l s e c re t ory pa rt s be t we e n b ot h ra w and ro a s te d s ee ds . T he pa pi l l os e ha i rs an d
as s e mb l ag e of c a nal s te nd t o be c o me s t i ff i n t he ro as te d ma te ri als t ha n t he ra w o ne s . T he s t ruc t ure s
of e ac h s e e ds of t he pa rti c ul a r c ul ti v a rs i ndi c at e a ki nd of c ha rac t e r- s pe c if i c it y. A c o r re l ati o n of
G CM S a nd SE M s t ud y ha ve be e n e s t abl is he d whic h ma y e n ab le to i de nt if y t he s upe ri o r qua li ty s e e ds .
K e y wo rds : Cumi n, a ro ma, G CM S, SE M .

J. Indian Chem. Soc.,
Vol. 90, March 2013, pp. 393-397
Determination of trace elements in edible fungi by axially view inductively
coupled plasma optical emission spectrometry after microwave digestion
Qi ng hua Yana*, Li Yangb, Ge Wangc, Qi ng Wangb and Jianwei Z hangb
a Department of Life Science and Technology, Xinxiang Medical University, Xinxiang Henan 453003, P. R. China, E-mail : yqh3499@ yahoo.com.cn Fax : 86-373 -3040015 b Department of Experimental Center, Henan Institute of Science and Technology, Xinxiang Henan 453003, P. R. Chi na c Medical Teaching Institute, Xinxiang Medical University, Xinxiang Henan 453003, P. R. China M anuscript recei ved online 24 A pri l 2012, accepted 15 M ay 2012 A bs t ra ct : Eig ht e le me nts (F e , Zn, C a, M g , Cu, M n, Ni a nd Se ) we re de te rmi ne d i n te n s pe c ie s of
e di ble f ung us . T ra c e e le me nts we re de te r mi ne d b y axi all y vie we d i nd uc t i ve l y c oup le d p l as ma o pt i c al
e mis s i o n s pe c t ros c o p y (I C P-O E S) afte r m ic ro wa v e di ge s t i o n of t he d rie d s a mpl e s . T he ac c u ra c y of t he
dig e s ti on pro c e d ure s wa s de t e r m i ne d by us i ng s t a nda r d re fe re nc e ma te ri al (G BW 0 7 6 0 4- Po pl a r
l e ave s ). T he p re c is i o n a nd ac c ura c y o f de te r mi na t io ns we re ve rif ie d t hro ug h s t a nda rd ad d iti o n
e x pe ri me nt. T he p rop os e d me t ho d c an be us e d c o nt rol a nd a na lys is of qual i t y of s o me f ung us s a mpl e s .
K e y wo rds : I CP -O E S, e di bl e f ung i , t rac e e le me nts , mic ro wa ve dig e s ti o n.

Source: http://www.indianchemsoc.org/journals/mar13.pdf