An unprecedented copper(I,II)-octacyanotungstate(V) 2-D network: crystal structure and magnetism of [CuII(tren)]{CuI[W(V)(CN)8]} . 1.5H2O |
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| Authors: | Korzeniak Tomasz Stadnicka Katarzyna Pelka Robert Balanda Maria Tomala Krzysztof Kowalski Kazimierz Sieklucka Barbara |
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| Institution: | Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland. |
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| Abstract: | A novel two-dimensional cyanide-bridged polymer CuII(tren)]{CuIW(V)(CN)8]} . 1.5H2O (tren = tris(2-aminoethyl)amine) formed via the simultaneous in situ metal-ligand redox reaction of Cu(tren)(OH2)]2+ and self-assembly with W(V)(CN)8]3- consists of a {CuIW(V)(CN)8]} square grid built of CuI centres of tetrahedral geometry coordinatively saturated by CN bridges and W(V)(CN)8]3- capped by CuII(tren)]2+ moieties; it exhibits ferromagnetic coupling J1 = +5.8(1) cm(-1) within the CuII-W(V) dinuclear subunits and weak antiferromagnetic coupling J2 = -0.03(1) cm(-1) between them through diamagnetic CuI spacers. |
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