Thioether macrocyclic complexes coordination chemistry

For several reasons we further restrict consideration to those compounds that comprise solely thioethers as donor groups. First, complexes of such compounds most clearly evince the electronic consequences of thioether coordination. Second, homogeneity of donor group simplifies analysis of conformation. Such studies provide the trends and general principles for interpretation of the coordination chemistry of mixed donor macrocycles. Third, the surge of research effort in all-thioether macrocycles has yielded sufficient information to permit detailed comparisons between complexes of closely related Ugands inclusion of mixed-donor macrocycles contributes little to such discussion. 

The first of these considerations, the potential parallel between thioethers and phosphines, suggests that thioethers might have extensive and industrially useful coordination chemistry. This possibility spurred earlier efforts to examine the complexes of macrocyclic thioethers [5, 6]. 

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