Coordination compounds of substituted 1,10-phenanthrolines and related dipyridyls. X. Complexes of iron, cobalt, and nickel, and 4,6,4',6'-Tetramethyl-2,2'-bipyridine

Abstract

The following complexes of 4,6,4',6'-tetramethyl-2,2'-bipyridine (tmb) have been prepared: MCl₂ tmb, where M = Fe, Co, and Ni; M(NO₃)₂ tmb,H₂O, where M = Fe and Co; [CoNO₃ tmb₂]ClO₄; and Ni tmb₂ (NO₃)₂,H₂O. The structures of these compounds have been determined, as far as possible, by means of magnetic susceptibility and conductivity measurements, and by studies of their infrared and visible absorption spectra.