Small effect on the rate of complexation of some dialkyl‐2,2′‐bipyridyl‐5,5′‐dicarboxylates with the ion of Ni(II) in methanol
1982; Wiley; Volume: 14; Issue: 5 Linguagem: Inglês
10.1002/kin.550140515
ISSN1097-4601
AutoresDagoberto Pacheco A., Francesca Creazzola De O., Jesús A. Sequera B., J. D. Medina, Vienna De Santis De M,
Tópico(s)Molecular Sensors and Ion Detection
ResumoAbstract 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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