Synthesis, crystal structure and magnetic properties of cubane and linear trinuclear nickel complexes formed by 3,5-dichloro-2-hydroxybenzylaminoacetic acid
作者：Yu Xiao , Shu Hua Zhang , Guang Zhao Li , Yin Guang Wang , Chao Feng
關(guān)鍵字：Solvothermal synthesis ,Cubane cluster,Linear trinuclear cluster ,Magnetic properties
論文來源：期刊
具體來源：Inorganica Chimica Acta 366 (2011) 39–43
發(fā)表時間：2011年
The reaction of Ni(ClO4)26H2O with 3,5-dichloro-2-hydroxy-benzylaminoacetic acid (H2dchaa), NaN3 and triethylamine in methanol solution or water solution under solvothermal methods leads to the formation of two completely different NiII compounds: [HN(C2H5)3]8
[Ni4(dchaa)4(N3)4]2 (1) and [HN(C2H5)3]2[Ni3(dchaa)4(H2O)4]2(H2O)2 (2). The complexes 1 and 2 have been characterized by elemental
analyses, IR spectra and single-crystal X-ray diffraction. Structure analyses reveal that complex 1 is a cubane cluster, while the complex 2 is a linear trinuclear cluster. The magnetic investigation shows
that complexes 1 and 2 exhibit a ferromagnetic coupling between NiII ions. Ac susceptibilities of 1 and 2 reveal no frequency-dependent out-of-phase signals and the corresponding magnetic properties were
discussed.