Coordination compounds of substituted 1,10-Phenanthrolines and related dipyridyls. VI. Complexes of copper(II) and 4,6,4',6'-Tetramethyl-2,2'-bipyridine

Abstract

The following complexes of copper(II) and 4,6,4',6'-tetramethyl-2,2'-bipyridine (tmb) have been prepared: CuX₂tmb, where X = NO₃,Cl,Br, and ½SO₄; Cu(tmb)₂X₂, nH₂O, where X = NO₃ (n = 1) and ClO₄, (n = 0, 1, and 2); and Cu(tmb)₂X(ClO₄), nH₂O, where X = NO₃ (lz = 1) and Cl (n = 0). The magnetic moments of the compounds range from 1.89 to 2.05 B.M. The results of conductivity, molecular weight, and spectral measurements suggest the occurrence of four-, five-, and six-coordinate copper(II).