First Paramagnetic 4d Transition-Metal Complex with a Redox-Active Tetrathiafulvalene Derivative, [Ru(salen)(PPh3)(TTF-CH=CH-Py)]BF4 [salen2- = N,N'-Ethane-1,2-diylbis(salicylidenamine), PPh3 = Triphenylphosphine, TTF-CH=CH-Py = 4-(2-Tetrathiafulvalenylethenyl)pyridine]. - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Inorganic Chemistry Année : 2008

First Paramagnetic 4d Transition-Metal Complex with a Redox-Active Tetrathiafulvalene Derivative, [Ru(salen)(PPh3)(TTF-CH=CH-Py)]BF4 [salen2- = N,N'-Ethane-1,2-diylbis(salicylidenamine), PPh3 = Triphenylphosphine, TTF-CH=CH-Py = 4-(2-Tetrathiafulvalenylethenyl)pyridine].

Résumé

The 1st paramagnetic 4d transition-metal complex with a redox-active tetrathiafulvalene ligand was synthesized. The prepn., x-ray structure, electrochem., and ESR measurements of [Ru(salen)(PPh3)(TTF-CH:CH-Py)](BF4) [1(BF4), salenH2 = N,N'-ethane-1,2-diylbis(salicylidenamine), TTF-CH:CH-Py = 4-(2-tetrathiafulvalenylethenyl)pyridine] are reported. The crystal structure reveals that the paramagnetic RuIII (s = 1/2) center is in a tetragonally elongated octahedral geometry and the TTF-CH:CH-Py ligand is coordinated to the axial position of the RuIII ion through the nitrogen atom of the pyridine group. Thus, 1(BF4) is an attractive precursor to study future π-4d interactions in dual-property conducting and magnetic materials.

Dates et versions

hal-01151568 , version 1 (13-05-2015)

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Fabrice Pointillart, Yann Le Gal, Stéphane Golhen, Olivier Cador, Lahcene Ouahab. First Paramagnetic 4d Transition-Metal Complex with a Redox-Active Tetrathiafulvalene Derivative, [Ru(salen)(PPh3)(TTF-CH=CH-Py)]BF4 [salen2- = N,N'-Ethane-1,2-diylbis(salicylidenamine), PPh3 = Triphenylphosphine, TTF-CH=CH-Py = 4-(2-Tetrathiafulvalenylethenyl)pyridine].. Inorganic Chemistry, 2008, 47, pp.9730--9732. ⟨10.1021/ic801340k⟩. ⟨hal-01151568⟩
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