Coordination polymers based on pyrazole-4-carboxaldehyde-containing Cu3N6 metallacycles as building units

Abstract

Five crystal structures containing trinuclear Cu(II)-4-formyl pyrazolato units are reported: a 0-D Cu₃ complex ((Ph₄P)₂[1]) was prepared in the presence of terminal chloride ligands, a 3D polymer with dia topology and 3-fold interpenetrated structure ([2](CF₃SO₃)₂) involved 1,2-bipyridylethylene (bpe) linkers, while a second 1-D polymer ([3](CF₃SO₃)₂) formed by linking SBUs via formyl group coordination. Two 3D polymers ([4](CF₃SO₃)₂ and [5](ClO₄)₂) with novel topologies consist of 14-nodal 3⁸,4²,5⁴-c and 3-nodal 3,3,4-c nets, respectively.