In the crystal structures of the three title complexes, (benzene-1,2-diolat
o-O,O')bis( triphenylphosphine)platinum(II), [Pt(C6H3O2)(C18H15P)(2)], (1),
(benzene-1,2-dithiolato-S,S')bis( triphenylphosphine)platinum(II), [Pt(C6H
4S2)(C18H15P)(2)], (2), and the n-hexane hemisolvate of (benzene-1,2-diolat
o-O,O')bis(tricyclohexylphosphine)platinum(II), [Pt(C6H4O2)(C18H33P)(2)]. 0
.5C(6)H(14), (3), the Pt atoms are tetracoordinate with distorted square-pl
anar geometry. Compounds (1) and (2) are isostructural.