Zinc thiosemicarbazide dicarboxylates: the influence of the anion shape on supramolecular structure

Saved in:
Bibliographic Details
Title: Zinc thiosemicarbazide dicarboxylates: the influence of the anion shape on supramolecular structure
Authors: Babb, Jennifer E.V.1, Burrows, Andrew D. a.d.burrows@bath.ac.uk, Harrington, Ross W.1, Mahon, Mary F.1
Source: Polyhedron. Mar2003, Vol. 22 Issue 5, p673. 14p.
Subjects: Hydrogen bonding, Carboxylic acids
Abstract: The syntheses and crystal structures of the zinc thiosemicarbazide dicarboxylate compounds [Zn(tsc)2(OH2)2][fumarate] 2, [Zn(tsc)2(citraconate)]·H2O 3, [Zn(tsc)(μ-1,4-phenylenediacetate)] 4, [Zn(Ettsc)2(citraconate)]·3H2O 5, [Zn(Ettsc)2(Hphthalate)][Hphthalate]·H2O 6, [Zn(Metsc)2(Hphthalate)][Hphthalate]·H2O 7, [Zn(Me2tsc)2(OH2)][terephthalate]·2H2O 8 and [Zn(EtMe2tsc)2(OH2)][terephthalate] 9 are reported. The supramolecular structures of the terephthalate and fumarate compounds 2, 8 and 9 consist of chains of cations and anions, in which the ions are linked by hydrogen bonding. In contrast, compounds 3, 5, 6 and 7 contain carboxylate groups co-ordinated to the metal centre to give either neutral or monocationic species. These differences can be rationalised on the basis of the dicarboxylate structure, in particular the angle between the carboxylate vectors. Compound 4 forms co-ordination polymers in an analogous manner to thiourea derivatives. [Copyright &y& Elsevier]
Copyright of Polyhedron is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:The syntheses and crystal structures of the zinc thiosemicarbazide dicarboxylate compounds [Zn(tsc)2(OH2)2][fumarate] 2, [Zn(tsc)2(citraconate)]·H2O 3, [Zn(tsc)(μ-1,4-phenylenediacetate)] 4, [Zn(Ettsc)2(citraconate)]·3H2O 5, [Zn(Ettsc)2(Hphthalate)][Hphthalate]·H2O 6, [Zn(Metsc)2(Hphthalate)][Hphthalate]·H2O 7, [Zn(Me2tsc)2(OH2)][terephthalate]·2H2O 8 and [Zn(EtMe2tsc)2(OH2)][terephthalate] 9 are reported. The supramolecular structures of the terephthalate and fumarate compounds 2, 8 and 9 consist of chains of cations and anions, in which the ions are linked by hydrogen bonding. In contrast, compounds 3, 5, 6 and 7 contain carboxylate groups co-ordinated to the metal centre to give either neutral or monocationic species. These differences can be rationalised on the basis of the dicarboxylate structure, in particular the angle between the carboxylate vectors. Compound 4 forms co-ordination polymers in an analogous manner to thiourea derivatives. [Copyright &y& Elsevier]
ISSN:02775387
DOI:10.1016/S0277-5387(02)01399-2