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Title: Kinetics and mechanism of reaction of sulphur(lV) with pyruvate (pentaammine) cobalt(III).
Authors: Dash, Anadi C
Patnaik, Ajay K
Das, Nigamananda
Issue Date: Jul-1998
Publisher: NISCAIR-CSIR, India
Abstract: The reaction of S(lV) with pyruvato(pentaamrnine)cobalt(III) has been studied in the range of pH (3.2 - 6.5) and temperatures (15 - 30°C). There is no evidence of substitution of bound carboxylate by sulphite. However, the keto form of the pyruvato complex reacts with HSO3- and SO32- yielding the S(IV) addition product, (NH3)5CoO2CC(SO3)(OH)CH3. The rate constants and activation parameters for both HSO3- and SO3 2- reaction paths are reported. The pyruvato complex and also its sulphite addition product do not undergo reduction of cobalt(III) centre by sulphite.
Page(s): 592-595
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.37A(07) [July 1998]

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