Abstract
Hydrothermal synthesis has produced three new compounds constructed from novel building units containing vanadium-oxide (or oxyfluoride) subunits linked together via covalently bound cationic copper complexes. Each new compound exhibits novel structural features: [Cu(dipa)][VOF 4] ( 1) incorporates a corner-sharing octahedral vanadium(IV) oxyfluoride chain decorated by copper-(2,2′-dipyridyl amine) complexes which form intra-chain bridges. Within a similar reactant system [Cu(dipa)] 2[V 6O 17] ( 2) is produced, the structure of which exhibits edge-sharing trigonal bipyramidal vanadium(V) ‘ladder-like’ double chains which are bridged into layers by tetrahedral pyrovanadate dimers together with the copper-(2,2′-dipyridyl amine) complexes. [Cu(py) 4] 2[V 4O 12] ( 3), is a 2-D structure featuring exclusively tetrahedral vanadium(V) in four-membered ring building blocks, linked through octahedral copper-pyridine complexes to form two crystallographically different bimetallic layers.
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