Issue 10, 2007
From the journal:

CrystEngComm

3D-, 2D- and 1D-supramolecular structures of {Zn[S2CN(CH2CH2OH)R]2}2 and their {Zn[S2CN(CH2CH2OH)R]2}2(4,4′-bipyridine) adducts for R = CH2CH2OH, Me or Et: polymorphism and pseudo-polymorphism†

Ronald E. Benson,a   Carol A. Ellis,b   Clairissa E. Lewisb  and  Edward R.T. Tiekink*b  

* Corresponding authors

a Rigaku Americas Corporation, 9009 New Trails Drive, The Woodlands, Texas 77381, USA

b Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA
E-mail: Edward.Tiekink@utsa.edu
Fax: 1 210 458 7428
Tel: 1 210 458 5774

Abstract

Supramolecular aggregation in the binary zinc dithiocarbamates, in which the dithiocarbamate ligands carry hydrogen-bonding functionality, i.e. {Zn[S2CN(CH2CH2OH)R]2}2, leads to 3D-, 1D- and 2D-architectures for R = CH2CH2OH, Et and Me, respectively. For R = CH2CH2OH, two polymorphs are found, both with 3D-network structures, but constructed from undulating (orthorhombic form) or flattened (monoclinic) layers. Linear chains are found for R = Et where molecules associate head-to-head. The intervention of solvent methanol in the R = Me structure provides additional links between molecules to allow the formation of a 2D-array. In their 4,4-bipyridine adducts, {Zn[S2CN(CH2CH2OH)R]2}2(4,4′-bipyridine), 3D-, 1D- and 2D-architectures are also found. 3D-networks are found for the R = CH2CH2OH and Et derivatives. For the latter compound, solvent methanol in its pseudopolymorph disrupts the 3D-network so that a 1D-supramolecular chain is found. Finally, in the R = Me structure, orthogonally inclined 2D-arrays are interpenetrated to form a 3D-network.

Graphical abstract: 3D-, 2D- and 1D-supramolecular structures of {Zn[S2CN(CH2CH2OH)R]2}2 and their {Zn[S2CN(CH2CH2OH)R]2}2(4,4′-bipyridine) adducts for R = CH2CH2OH, Me or Et: polymorphism and pseudo-polymorphism

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Article information

DOI
https://doi.org/10.1039/B706442J
Article type
Paper
Submitted
30 Apr 2007
Accepted
09 Jul 2007
First published
31 Jul 2007

CrystEngComm, 2007,9, 930-940

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3D-, 2D- and 1D-supramolecular structures of {Zn[S2CN(CH2CH2OH)R]2}2 and their {Zn[S2CN(CH2CH2OH)R]2}2(4,4′-bipyridine) adducts for R = CH2CH2OH, Me or Et: polymorphism and pseudo-polymorphism

R. E. Benson, C. A. Ellis, C. E. Lewis and E. R.T. Tiekink, CrystEngComm, 2007, 9, 930 DOI: 10.1039/B706442J

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