Two polymorphic forms of the tetrakis(dithioisobutanoato)diplatinum(II) complex: X-ray crystal structure and spectroscopic evidence of intermolecular interactions in the solid state

Abstract

Two polymorphic forms (A and B) of Pt₂(Me₂CHCS₂)₄ have been isolated and preliminary optical data and the X-ray crystal structure of the A form are reported; the low-energy absorption band, in the solid state, present in both forms and in tetrakis(dithioacetato)-diplatinum(II), can be explained as neutral Frenkel excitons, propagating along the stacks of dimers.