Structure and magnetic properties of a new dinuclear nickel(II) complex with a dinucleating hexaazamacrocycle

The crystal structure and magnetic properties of a new dinuclear nickel(II) complex [LNi2(AcO)(4)]. 14H(2)O, where L = 3,6,9,17,20,23-hexaazatricyclo [23.3.1.1(11,13)] triaconta-1(29),11(30),12,14,25(26),27-hexene, has been s tudied. X-ray structure analysis shows that the compound consists of a disc rete [LNi2(AcO)(4)] complex and 14 lattice water molecules. Each Ni atom is six coordinated by three N atoms from the macrocycle and three O atoms fro m the two coordinated acetates; two nickel atoms in each macrocycle are at the distance of 7.028 Angstrom. The result of the magnetic measurement indi cates that the zero-field splitting constant of nickel(II) centres \D\ = 1. 87 cm(-1).