Issue 8, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

Methyl group influence on the formation of CuI complexes with thio-pyridine ligands

Paula L. Caradoc-Davies,a   Lyall R. Hanton,*a   Justin M. Hodgkissa  and  Mark D. Spicerb  

* Corresponding authors

a Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
E-mail: lhanton@alkali.otago.ac.nz

b Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland

Abstract

In order to investigate the effect of methyl group substitution adjacent to a pyridyl N donor, three ligands were synthesised and complexed with CuI in a 1 ∶ 2 ratio. The crystal structures of three CuI complexes were determined. The dimethylated ligand bis(6-methyl-2-pyridylmethyl)sulfide (L1) gave rise to a tetranuclear complex with two Cu2I2 bridges in which the Cu centres were four-coordinate. The asymmetric ligand 2-(6-methylpyridyl)methyl(2-pyridyl)methylsulfide (L2) gave a tetranuclear complex which contained two parallel Cu2I2 bridges. In each Cu2I2 bridge, one Cu centre was three- and the other four-coordinate. In contrast, the ligand bis(2-pyridylmethyl)sulfide (L3), with no Me substitution, gave rise to a one-dimensional coordination polymer with CuI chains. It was found that the differences in the complexes were a result of both the electronic and steric effects arising from the Me substitution of the pyridine donors and that no one effect completely dominated.

Graphical abstract: Methyl group influence on the formation of CuI complexes with thio-pyridine ligands

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Article information

DOI
https://doi.org/10.1039/B111400J
Article type
Paper
Submitted
14 Dec 2001
Accepted
15 Feb 2002
First published
25 Mar 2002

J. Chem. Soc., Dalton Trans., 2002, 1581-1585

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Methyl group influence on the formation of CuI complexes with thio-pyridine ligands

P. L. Caradoc-Davies, L. R. Hanton, J. M. Hodgkiss and M. D. Spicer, J. Chem. Soc., Dalton Trans., 2002, 1581 DOI: 10.1039/B111400J

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