Coordination polymers of CoII and 3,3′,5,5′-tetramethyl-4,4′-bipyrazolyl: a novel metal–organic three-dimensional network with four-coordinated planar vertices
- 26 February 2001
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 6,p. 893-897
- https://doi.org/10.1039/b007183h
Abstract
The bitopic exodentate ligand 3,3′,5,5′-tetramethyl-4,4′-bipyrazolyl (4,4′-bpz), designed as an angular bridging unit capable of formation of a set of coordination and hydrogen bonds, gave the coordination polymers [Co(4,4′-bpz)2{C6H5CO2}2]·2C6H5Br 1 and [Co(4,4′-bpz){C6H5CO2}{CH3CO2}]·2C6H5Br 2. Complex 1 exhibits a 3-D structure containing rectangular channels. The topology of the array has no precedents in crystal engineering of linear spacer ligands of the 4,4′-bipyridine type and may be a prototype for engineering of a novel family of functional solids. Complex 2 exists as a hybrid coordination/hydrogen-bonded porous network which incorporates two guest bromobenzene molecules per metal atom.Keywords
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