Chemical Physics Letters, Vol.369, No.1-2, 41-48, 2003
Complicated magnetic behavior in one-dimensional nickel(III) chain complex [1-(4'-cyanobenzyl)pyridinium] [Ni(mnt)(2)] (mnt(2-) = maleonitriledithiolate)
A new ion-pair complex [1-(4'-cyanobenzyl)pyridinium] [Ni(mnt)(2)] (1), in which mnt(2-) = maleonitriledithiolate, have been fabricated and its X-ray single crystal structural analyses at 293, 180 and 140 K shown that the [Ni(mnt)(2)](-) anions and [CNBzPy](+) cations form a well-separated stacking column along c-axis direction, within which [Ni(mnt)(2)](-) anions are uniformly spaced to give a one-dimensional (I-D) chain structure. Bulk magnetic properties of this complex have been investigated in the temperature range of 2-400 K and shown there exists spin kink at similar to190 K. In low temperature region, weak ferromagnetic behavior occurs in 1. (C) 2003 Elsevier Science B.V. All rights reserved.