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Issue 10, 2006
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Copper(i/ii) complexes of a bis(tetrathiafulvalene)-2,2′-bipyridine: synthesis, characterization, magnetic and electrochemical properties

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Abstract

The coordination ability of the electroactive TTF-based chelating ligand 5,5′-bis(4,5-bis(thiomethyl)-4′-carbamoyltetrathiafulvalene)-2,2′-bipyridine (L) has been tested with Cu(I) and Cu(II) centres. [(L)2CuI](PF6), [(L)2CuII](OTf)2 and [(L)CuII(DMF)3](OTf)2 have been synthesized. A single-crystal X-ray analysis was performed on [(L)CuII(DMF)3](OTf)2, showing a distorted octahedral geometry around the Cu(II) centre, and the formation of dimeric units in the solid state through weak coordination in apical position of an amide oxygen atom from a neighbouring complex. Magnetic data show that the paramagnetic metallic centres are isolated, in agreement with the solid-state structure. Electrochemical measurements were performed on the three complexes and in all cases the Cu(I)/Cu(II) and TTF/TTF+˙/TTF2+ redox processes were observed.

Graphical abstract: Copper(i/ii) complexes of a bis(tetrathiafulvalene)-2,2′-bipyridine: synthesis, characterization, magnetic and electrochemical properties

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Article information


Submitted
06 Sep 2005
Accepted
31 Oct 2005
First published
22 Nov 2005

Dalton Trans., 2006, 1331-1337
Article type
Paper

Copper(I/II) complexes of a bis(tetrathiafulvalene)-2,2′-bipyridine: synthesis, characterization, magnetic and electrochemical properties

T. Devic, D. Rondeau, Y. Şahin, E. Levillain, R. Clérac, P. Batail and N. Avarvari, Dalton Trans., 2006, 1331
DOI: 10.1039/B512598G

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