Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/11622
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dc.contributor.authorDash, S C-
dc.contributor.authorDas, N N-
dc.contributor.authorMohanty, P-
dc.date.accessioned2011-04-26T08:55:09Z-
dc.date.available2011-04-26T08:55:09Z-
dc.date.issued2011-03-
dc.identifier.issn0975-0991 (Online); 0971-457X (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/11622-
dc.description132-136en_US
dc.description.abstractThe substitution reactions of [Cr(SALM)(OH2)2]+ (SALM =N, N– ethylene–bis-salicylamide) and Cr(H2O)63+ with ranitidine hydrochloride, an antacid have been studied spectrophotometrically over the range 0.5 ´ 10-4 £ [Cr(III)complex]T £ 3 ´10-4, 3.6 £ pH £ 4.2, 25oC £ t £ 45oC and I = 0.5 mol dm-3 [Cr(III)complex] = ([Cr (III)(SALM)(OH2)2]+or [Cr(H2O)6]3+]) . This reaction follows a mechanism which takes place via an outer sphere association between [Cr (III)(SALM)(OH2)2]+, [Cr(H2O)6]3+ and ranitidine hydrochloride followed by transformation of outer into inner sphere complex by slow interchange. The anation rate constant at 25oC and I = 0.5 mol dm-3 (NaClO4) is found to be 4.43 ´ 10-4 s-1 for [Cr(III)(SALM) (OH2)2]+and 3.05´10-4 s-1 for Cr(H2O)63+ . The DH# for kan path are found to be 48.2 ± 0.6, 41.2 ±0.2 kJmol-1 and S# –147.6 ± 2.0, -174.2 ± 0.6 JK-1mol-1 for Cr(III)SALM(OH2)2+ and Cr(H2O)63+ ion respectively.en_US
dc.language.isoen_USen_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJCT Vol.18(2) [March 2011]en_US
dc.subjectRanitidine hydrochloride Metal Complexesen_US
dc.subjectChromium(III)-ranitidine complexen_US
dc.titleKinetics and mechanism of the reaction of ranitidine hydrochloride with trans-(diaqua)(N,N-ethylene-bis-salicylamide) chromium(III) and hexa-aquachromium(III) ion – a comparative studyen_US
dc.typeArticleen_US
Appears in Collections:IJCT Vol.18(2) [March 2011]

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