Decamethylchromocenium tetracyanoethenide, (Cr(C5Me5)2]:.+[TCNE]˙+: a molecular ferromagnet with Tc= 3.65 K
Abstract
The electron-transfer salt 4[Cr(C5Me5)2]+[TCNE]˙–(TCNE = tetracyanoethylene) has been prepared and structurally characterized by single-crystal X-ray diffraction. It possesses a solid-state motif of parallel 1D chains of alternating radical rations and anions similar to, but not isostructural to, the ferromagnet [Fe(C5Me5)2]˙+[TCNE]˙–·4[Cr(C5Me5)2]+[TCNE]˙– is a soft ferromagnet with no hysteretic effects observed and Tc= 3.65 K.