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Issue 15, 2006
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Multinuclear copper complexes of pyridylmethylamide ligands

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Abstract

Copper complexes of a family of pyridylmethylamide ligands HLPh, HLMe3 and HLPh3 were synthesized and characterized [HLPh = 2-phenyl-N-(2-pyridylmethyl)acetamide; HLMe3 = 2,2-dimethyl-N-(2-pyridylmethyl)propionamide; HLPh3 = 2,2,2-triphenyl-N-(2-pyridylmethyl)acetamide]. The reaction of copper(II) salts with the HL family and triethylamine in methanol yields copper(II) complexes [Cu4(LPh)4(OH)2](ClO4)2 (1), [Cu2(HLMe3)2(OMe)2(MeOH)2](OTf)2 (2) and [Cu2(HLPh3)2(OMe)2(MeOH)2](OTf)2 (3). The complexes have different nuclearity owing to varying steric properties of the ligands used. Complex 1 self-assembles in the presence of excess base to form a tetranuclear complex. Complexes 2 and 3 are binuclear and are bridged by a pair of methoxide ligands. Steric encumbrance of the ligands in 2 and 3 prevent cluster formation.

Graphical abstract: Multinuclear copper complexes of pyridylmethylamide ligands

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Article information


Submitted
28 Sep 2005
Accepted
15 Dec 2005
First published
18 Jan 2006

Dalton Trans., 2006, 1902-1908
Article type
Paper

Multinuclear copper complexes of pyridylmethylamide ligands

U. Pal Chaudhuri, L. R. Whiteaker, L. Yang and R. P. Houser, Dalton Trans., 2006, 1902
DOI: 10.1039/B513763B

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