摘要
The reaction ofphenyl 2-pyridyl ketoxime (PhPyCNOH) with Cu(NO3)2·3H2O has led to a triangular complex Cu3(OH)(PhPyCNO)3(NO3)·NO3·H2O 1 containing the [Cu3(μ2-OH)]5+ core and possessing the very rare inverse 9-metallacrown-3 motif created by the bridging oximate groups. Crystallographic data for 1: C36H30N8O11CU3, Mr = 941.30, monoclinic, space group C2/c, a = 18.815(9), b = 33.888(15), c = 14.307(7) A, β = 118.945(6)°, V= 7983(6) A3, Z = 8, Dc = 1.566 g/cm3, μ = 1.652 mm^-1, F(000) = 3816, R= 0.0644 and wR= 0.1393 for 3468 observed reflections (I〉 2σ(I)). Preliminary variable-temperature magnetic susceptibility studies reveal an antiferromagnetically-coupled system showing antisymmetrie exchange.
The reaction ofphenyl 2-pyridyl ketoxime (PhPyCNOH) with Cu(NO3)2·3H2O has led to a triangular complex Cu3(OH)(PhPyCNO)3(NO3)·NO3·H2O 1 containing the [Cu3(μ2-OH)]5+ core and possessing the very rare inverse 9-metallacrown-3 motif created by the bridging oximate groups. Crystallographic data for 1: C36H30N8O11CU3, Mr = 941.30, monoclinic, space group C2/c, a = 18.815(9), b = 33.888(15), c = 14.307(7) A, β = 118.945(6)°, V= 7983(6) A3, Z = 8, Dc = 1.566 g/cm3, μ = 1.652 mm^-1, F(000) = 3816, R= 0.0644 and wR= 0.1393 for 3468 observed reflections (I〉 2σ(I)). Preliminary variable-temperature magnetic susceptibility studies reveal an antiferromagnetically-coupled system showing antisymmetrie exchange.
基金
supported by the National Natural Science Foundation of China(No.20971004)
the Natural Science Foundation of Anhui Provincial Education Commission(No.KJ2010A229)