Abstract
Reactions of (NH4)WS4, CuCN and pyridine (Py) in different reaction solvents, namely DMF, DMSO and aniline, generated three isomeric heterothiometallic W/S/Cu cluster-based coordination polymers [WS4Cu4(CN)2(Py)4]n (1 and 2) and {[WS4Cu4(CN)2(Py)4]2·4CH3CN}n 3. All three complexes are constructed from planar ‘open’ [W(µ3-S)4Cu4]2+ clusters, CN− bridges and terminal Py ligands, but exhibit distinct architectures, consisting of a unique 1-D serrated chain for 1, a 2-D (4,4) network for 2 and a 1-D linear chain for 3. The photocatalytic activities of complex 1 were explored by monitoring the photodegradation of methylene blue, revealing that this complex exhibits effective photocatalytic properties under visible light irradiation.
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