Crystal Structure and Magnetic Properties of Gd2([18]crown-6)2(OH)2(CH3CN)2[Ni(dmit)2]4 Complex Having f- and Pi-Spins

Crystal structure and magnetic properties of Gd2([18]crown-6)2(OH)2(CH3CN)2[Ni(dmit)2]2 (dmi^2- = 2-thioxo-1,3-dithiole-4,5-dithiolate) are reported. Gd^3+ ions (S = 7/2 were introduced into the Pi-spin network of [Ni(dmit)2)- (S = 1/2) complex as a binuclear supramolecular cation, Gd2([18]crown-6)2(OH)2(CH3CN)2, in which two Gd([18]crown-6) units are bridged with two hydroxide ions. The weak antiferromagnetic interactions between Gd...Gd through hydroxide ions were observed, and [Ni(dmit)2]- formed isolated monomers and dimers in the crystal.