A novel one-dimensional nickel(II) complex with a hydrogen-bond-link

A novel compound [Ni(L)(H2O)(2)](0.5)[Ni(L)(WO4)(2)](0.5). 4H(2)O (1) (L = 3,14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,0(1.18),0(7.12)]-docosane) has been structurally and magnetically characterized. The nickel(II) ions are shown to be in distorted octahedral environments with secondary amines of macrocycles in which two trans water molecules and two trans tungstate ions are assembled around each metal center. Two nickel(II) complexes are connected into a one-dimensional chain via hydrogen bonds. The magnetic susceptibility measurement for 1 indicates weak antiferromagnetic interaction (J = -1.01(2) cm(-1); H = -J Sigma S-i. Si+1) between the S = 1 nickel(II) paramagnetic centers. (C) 1999 Elsevier Science S.A. All rights reserved.