Design of One-Dimensional Coordination Networks from a Macrocyclic {3d-4f} Single-Molecule Magnet Precursor Linked by [W(CN)8]3− Anions

Abstract

The outcome of 1:1 reactions of the tetranuclear 3d-4f Single Molecule Magnet (SMM) [Cu3Tb(LPr)(NO3)2(H2O)]NO3 (1) with (TBA)3[W(CN)8] (TBA = tri-nbutyl ammonium cation, [(n-Bu)3N−H]+) in dimethylformamide (DMF) is dependent on the crystallization method employed: liquid−liquid diffusion of the reagents together gives {[Cu3Tb(LPr)W(CN)8(DMF)4]*(DMF)}n (2) whereas diethyl ether vapor diffusion into the reaction solution gives {[Cu3Tb(LPr)W(CN)8(DMF)3(H2O)3]*(DMF)1.5*(H2O)0.5}n (3). Both compounds are obtained as black single crystals and feature one-dimensional (1D) coordination networks (chains) of [1]3+ macrocycles linked by [W(CN)8]3− anions. The two assemblies differ from a structural point of view...