Structure and properties of two polymorphs of tetra-n-butylammonium bis(maleonitriledithiolato)platinate(1−)

Structural determination of tetra-n-butylammonium bis(maleonitriledithiolato)platinate(1−) revealed that one polymorph consists of a columnar arrangement of dimers of the anion and is isomorphous with a corresponding nickelate complex. Strong antiferromagnetic interactions were observed between the anions. The other polymorph consists of a tetramer unit of the anion.