The coordination chemistry ofN-vinylimidazole

Abstract

The synthesis of coordination compounds of formula M(viz)n(A)2 is described, where viz. =N-vinylimidazole, M = Mn, Fe, Co, Ni, Cu, Zn or Cd, A = ClO 4 − , BF 4 − or NO 3 − , and n varies from 3 to 6, depending upon the particular combination of cation and anion. The compounds are easily prepared in ethanol from the hydrated metal(II) salts and the ligand and the products were characterized using i.r., ligand-field, far-i.r. and e.p.r. spectra in conjunction with x-ray powder diagrams and magnetic techniques. Octahedral cations [M(viz)6]2+ are formed in many cases, although square planar species Cu(viz)4(A)2 and tetrahedral species [M(viz)4]2+ for M = Co and Zn are also found.