Spontaneous magnetization in [1-(4-cyanobenzyl)pyridinium][Pt(mnt)2]: synthesis, crystal structure and magnetic property

A new complex [1-(4-cyanobenzyl)pyridinium][Pt(mnt)2] (1), in which mnt2− = maleonitriledithiolate, has been prepared and characterized. In the solid state, anions and cations of 1 form completely segregated stacking column, and the [Pt(mnt)2]− anion column behaves as one-dimensional (1-D) spaced magnetic chains. 1 spontaneously magnetizes at low temperature, which may arises from spin canting.