The reaction of diaquatetraamminecobalt(II)) ion with oxalate was found to occur in a single stage. The rate law is interpreted in terms of an ion pairing mechanism with an ion pairing equilibrium constant of 0.52 for H2C2O4 and 5.3 for HC2O4−.
发现二季铵盐钴(II)离子与草酸盐的反应发生在单个阶段。率法的解释与0.52为H成离子配对平衡常数的离子配对机制方面2 c ^ 2 Ò 4和5.3 HC 2 ö 4 - 。
Syntheses and Characterizations of μ-Dicarboxylato-bis[pentaamminecobalt(III)] Complexes
Five new complexes, [(NH3)5Co(dicarboxylate)Co(NH3)5]X4 (dicarboxylate=oxalate, succinate, pimelate, fumarate, and maleate; X=ClO4− or Cl−), were synthesized by the reactions of [Co(hydrogen dicarboxylate)(NH3)5](ClO4)2 with [Co(NH3)5(H2O)](ClO4)3 and characterized by chromatographic behavior and electronic and NMR techniques. When maleate was used as the dicarboxylate, the formation of [(NH3)5Co(
The title anationreaction was studied at 73.4°C in the presence of added nitrate ion. The nitrate ion accelerated the reaction by an amount which was dependent on the pH of the solution. This is interpreted in terms of the effect of nitrate ion on ion-pair formation.