Oxo-ion Complexes

Ishimori, T. Hagiwata, T. Tsuruta, and Y. Kai, Bull. Chem. Soc. Japan, 1976,49,116S. 

Ciavatta, M. Grimaldi, and R. Palombari, J. Inorg. Nuclear Chem., 1976, 38, 823. 

X = Cl or Br n + m = 4) have been determined, as have constants for the ions [Zn(S203) ] (n = 1—3). ° Studies on thecomplexation of in phosphate solutions reveals the complexes Hg(HP04) and Hg(P04) in the solid state, the Hg phosphates Hg2HP04 and (Hg2)3(P04)2 have also been identified.  

Formation constants for the species [M(OAc) ] (M = Zn or Cd n = 1—3) have been determined in addition, zinc forms a tetra-acetato-complex. Stability constants for complexation of Zn and Cd by other carboxylic and hydroxycarboxylic acids have been reported. 

Mixed oxalate-salicylate complexes of Cd of the stoicheiometry [Cd(oxXsal)] and [Cd(ox)(sal)2] have been detected stability constants for these, [Cd-(ox) ] (n = 1—3), and [Cd(sal) ] (n = 1 or 2) have also been determined. ° In oxalate solution, Hg forms the mixed complexes [Hg(C204)X ] ( = 1, X = SCN = 1 or 2 X = OAc, NO2, Br, or tartrate). The complexation of Cd by tartrate has also been investigated. Stability constants for mixed complex formation between piperidine and a variety of zinc and cadmium mono- and dicar boxylic acids have been reported.  

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Oxo ion complexes. Several of these exist, e.g., [Hg(S03)2]2 and [Hg ox2]2-. The yellow crystals formed by adding KNOz to Hg(N03)2 solution contain K2[Hg(N02)J-KN03, where the nitrite ion is bidentate, giving an eight-coordinate very distorted square antiprism.30... 

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