Ferromagnetic interactions in a decamethyl-ferrocenium salt of nickel(iii) bis(2-Oxo-1,3-Dithiole-4,5-Dithiolate)

The synthesis, crystal structure and magnetic properties of the title compound are presented: Fe [C5(CH3)5]2 [Ni(III)(S4C3O)2](CH3CN), Mr= 786.65, crystallizes in the C2/m monoclinic space group with cell parameters a=16.374(4) Å;, b=10.84(2)Å, c=19.530(5)Å, β=98.02(2)°, V= 3431 Å3, Z=4, dcalc= 1-523 g.cm-3, Full-matrix least-squares refinements gave R(F)=0.060, Rw(F)=0.077 based on 1068 reflections with I>3(I). The magnetic behavior is typical of dominant ferromagnetic interactions to which very weak antiferromagnetic interactions are superimposed.