摘要

The first triple mu(2)-O-bridged dinuclear Ni(II) complex, [Ni-2(Flu)(3)](ClO4)center dot(H2O) (1, HFlu = 2-(2',4'-difluorophenyl)-1,3-bis(1,2,4-triazol-1-yl)-propan-2-ol), has been synthesized and structurally and magnetically characterized. Complex 1 crystallizes in monoclinic, space group P2(1)/n with a = 12.7143(3), b = 21.3392(6), c 17.6497(5) angstrom, beta = 106.142(2)degrees, V = 4599.8(2) angstrom(3), = 4, mu(MoK alpha) = 0.975 min(-1), D-c = 1.662 g/cm(3), GOF = 0.83, the final R (I > 2 sigma(I)) = 0.0503 and wR (all data) = 0.1288. In 1, three Flu anions encapsulate two nickel(II) ions bridged by three deprotonated mu(2)-O groups. The central alkoxo and terminal triazolyl group chelate one nickel(II) in a six-membered boat configuration. Variable temperature magnetic susceptibilities show an intramolecular anti-ferromagnetic interaction between the Ni(II) ions with J = -26.7(3) cm(-1).