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Small effect on the rate of complexation of some dialkyl-2,2′-bipyridyl-5,5′-dicarboxylates with the ion of Ni(II) in methanol

✍ Scribed by Dagoberto Pacheco A.; Francesca Creazzola De O.; Jesús A. Sequera B.; José D. Medina; Vienna De Santis De M

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
230 KB
Volume
14
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The kinetics of formation of the 1:1 complexes of some dialkyl‐2,2′‐bipyridyl‐5,5′‐dicarboxylates with the ion of Ni(II) have been determined by the stopped‐flow spectrophotometric method. Second‐order formation rate constants have been correlated with the Taft modification of the Hammett equation. A linear regression has been found (P = 0.95 confidence) with the following characteristics: slope = ‐0.6 ± 0.1; intercept = 1.32 ± 0.02 (log k~0~). An inductive effect of the alkyl groups upon the reaction of the complexation is proposed.

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