Calculation of the equilibrium constants and binding cooperativity parameters of ammonia with Group II metal cations in solution

Результат исследований: Научные публикации в периодических изданияхстатья

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Аннотация

The matrix model was used to analyze the distribution diagrams and formation functions of ammonia complexes [M(NH3) n ] 2+ (n = 0-4) of Group II metal ions (Mg2+, Ca 2+, Zn2+, Cd2+, and Hg2+) in solution. Intrinsic binding constants of the ligand (K in) and mutual influence corrections (ω) for complex formation with aqua ions in solution were calculated. The equilibrium constants were calculated by the matrix method. The coordination sphere of Mg2+, Ca2+, and Zn2+ by ammonia in a cooperative manner; with Cd2+ and Hg2+, both cooperative and anticooperative binding occur concurrently. Possibilities for differentiation between tetrahedral and square planar coordination polyhedra on the basis of the characteristic features of ligand binding, determined by the matrix model, are discussed.

Язык оригиналаанглийский
Страницы (с-по)2087-2095
Число страниц9
ЖурналRussian Journal of General Chemistry
Том79
Номер выпуска10
DOI
СостояниеОпубликовано - 1 окт 2009

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