Peculiar magnetic transition behaviour around 208 K in one-dimensional nickel(III) chain complex [1-(4'-vinylbenzyl)pyridinium][Ni(mnt)(2)] (mnt(2-) = maleonitriledithiolate)

Dang DB; Ni CL; Bai Y; Tian ZF; Ni ZP; Wen LL; Meng QJ; Gao S

Chemistry Letters, Vol.34, No.5, 680-681, 2005

DOI10.1246/cl.2005.680 Export Citation

Peculiar magnetic transition behaviour around 208 K in one-dimensional nickel(III) chain complex [1-(4'-vinylbenzyl)pyridinium][Ni(mnt)(2)] (mnt(2-) = maleonitriledithiolate)

Dang DB, Ni CL, Bai Y, Tian ZF, Ni ZP, Wen LL, Meng QJ, Gao S

A new ion-pair complex, [VBzPy][Ni(mnt)(2)], where [VBzPy](+) = 1-(4'-vinylbenzyl)pyridinium and mnt(2)- = maleonitriledithiolate, has been synthesized. The cations and anions stack into completely separated columns and Ni(III) ions form a uniformly spaced one-dimensional (1-D) zigzag chain within a [Ni(mnt)2](-) column in solid state. Magnetic susceptibility and DSC measurements revealed that there exists a first-order phase transition at approximately 208 K.