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Equilibria in complexes of N-heterocycles. Part 50.1 the formation and properties in solution of the 1:1 adducts of bis(2,2'-bipyridine)platinum(II) and related ions with hydroxide

Gameiro A.M.F. | Gillard R.D. | Rees N.H. | Schulte J. | Sengül A.

Equilibrium constants are given for addition (mol ratio 1:1) of hydroxide to several palladium(II) and platinum(II) cations. [Pt(bpy)2]2+ (bpy: 2,2'-bipyridine) and hydroxide ion form the well-known 1:1 adduct rapidly in water; the rate is given at 25°C by k = 1.6 × 102 mol-1 dm3 s-1. The equilibrium constants for adding hydroxide to [Pt(bpy)2]2+ and to [Pt(3,3'-[2H]2-bpy)2]2+ are the same, but differ considerably from those for [Pt([2H]8-bpy)2]2+ and for [Pt(6,6'-[2H]2-bpy)2]2+ with hydroxide. In this reaction, the infrared spectrum (1700-900 cm-1) of the cation initially [Pt(bpy)2]2+ in the ...Daha fazlası

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