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Zinc dicarboxylate polymers and dimers: thiourea substitution as a tool in supramolecular synthesis


Reference:

Burke, N. J., Burrows, A. D., Donovan, A. S., Harrington, R. W., Mahon, M. F. and Price, C. E., 2003. Zinc dicarboxylate polymers and dimers: thiourea substitution as a tool in supramolecular synthesis. Dalton Transactions

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Abstract

The reactions of the zinc thiourea complexes [Zn{SC(NHR)(NHR')}(4)] Cl-2(L=L-1, R=H, R'=Me; L=L-2, R=Me, R'=Me) with a range of dicarboxylates have been investigated. From these reactions eleven products-[Zn(L-1)(2)-(mu-terephthalate)](n), [Zn(L-1)(2)(mu-fumarate)](n), {[Zn(L-1)(2)(mu-isophthalate)].H2O}(n), [Zn(L-1)(2)(mu-1,3-phenylenediacetate)](n), [Zn(L-1)(2)(mu-phthalate)](2).4H(2)O, {[Zn(L-2)(2)(mu-terephthlate)].0.5H(2)O}(n), [Zn(L-2)(2)(mu-fumarate)](n), [Zn(L-2)(2)(mu-isophthalate)](2).2H(2)O, [Zn(L-2)(2)(mu-phthalate)](n), [Zn(L-2)(2)(mu-maleate)](2).2H(2)O and [Zn(L-2)(2)(mu-citraconate)](2).2H(2)O-have been crystallographically characterised. The structural characterisation of these compounds demonstrates that by increasing the number of methyl substituents on the thiourea ligand, the likelihood of forming a dimer as opposed to a coordination polymer also increases. Moreover, dimer formation is only favoured for non-linear dicarboxylates those in which the angle between the carboxylate groups is less than 180degrees.

Details

Item Type Articles
CreatorsBurke, N. J., Burrows, A. D., Donovan, A. S., Harrington, R. W., Mahon, M. F. and Price, C. E.
DOI10.1039/b307420j
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code5063
Additional InformationID number: ISI:000185960500006

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