Trinuclear molybdenum cluster sulfides coordinated to dithiolene ligands and their use in the development of molecular conductors
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http://dx.doi.org/10.1016/j.ccr.2009.12.026 |
Metadatos
Título
Trinuclear molybdenum cluster sulfides coordinated to dithiolene ligands and their use in the development of molecular conductorsFecha de publicación
2010Editor
ElsevierISSN
108545Cita bibliográfica
Coordination Chemistry Reviews, 254, 13-14, p. 1534-1548Tipo de documento
info:eu-repo/semantics/reviewVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The present article reviews synthetic approaches to efficiently prepare Mo<sub>3</sub>S<sub>7</sub> clusters coordinated to 1,2-bis-dithiolene ligands of general formula [Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub> ... [+]
The present article reviews synthetic approaches to efficiently prepare Mo<sub>3</sub>S<sub>7</sub> clusters coordinated to 1,2-bis-dithiolene ligands of general formula [Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub>3</sub>]<sup>2-</sup> where dithiolene stands for tfd (bis(trifluoromethyl)-1,2-dithiolene), bdt (1,2-benzenedithiolene), mnt (maleonitriledithiolene), tdas (1,2,5-thiadiazole-3,4-dithiolene), dmid (1,3-dithia-2-one-4,5-dithiolene), dmit (1,3-dithia-2-thione-4,5-dithiolene) and the diselenolene dsit (1,3-dithia-2-thione-4,5-diselenolene). These [Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub>3</sub>]<sup>2-</sup> dianions serve as starting materials to access new dithiolene clusters featuring Mo<sub>3</sub>S<sub>4</sub> and Mo<sub>2</sub>O<sub>2</sub>S<sub>2</sub> cluster cores. The electrochemical and spectroscopic properties as well as solid state structures of Mo<sub>3</sub>S<sub>7</sub>/dithiolene compounds are also described. These C<sub>3</sub>-symmetry [Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub>3</sub>]<sup>2-</sup> molecules inherently possess degenerate frontier orbitals and display a rich structural diversity due to the electrophilic character of the three sulfur atoms in axial positions. These characteristics make the [Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub>3</sub>]<sup>2-</sup> dianions, versatile targets for the development of new molecular conductors. Several examples of hybrid charge-transfer salts based on TTF-donors and [Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub>3</sub>]<sup>2-</sup>/[Mo<sub>3</sub>S<sub>7</sub>X<sub>6</sub>]<sup>2-</sup> dianions (X = Cl, Br) are discussed as well as the preparation of the first family of cluster-based single-component magnetic conductors of formula Mo<sub>3</sub>S<sub>7</sub>(dithiolene)<sub>3</sub>. © 2009 Elsevier B.V. All rights reserved. [-]
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