Neutral, closed-shell nickel bis(2-alkylthiothiazole-4,5-dithiolate) complexes as single component molecular conductors

Hadi Hachem (1) , Zijun Xu (1) , Nathalie Bellec (1) , Olivier Jeannin (1) , Pascale Auban-Senzier (2) , Thierry Guizouarn (1) , Marc Fourmigué (1) , Dominique Lorcy (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 LPS - Laboratoire de Physique des Solides

Neutral nickel bis(dithiolene) complexes, because of their closed-shell character, are usually considered as insulating materials, unless they are formed out of highly delocalized tetrathiafulvalenedithiolate ligands. We describe here an original series of S-alkyl substituted neutral bis(thiazole-4,5-dithiolate) nickel complexes formulated as [Ni(RS-tzdt)(2)] (R = Me, Et), which organize in the solid state into uniform stacks and exhibit semiconducting behavior, with room temperature conductivities comparable to those reported in the prototypical [Ni(dmit)(2)] and [Ni(Et-thiazdt)(2)] neutral complexes. These findings provide new perspectives in the current search for single component molecular conductors.

Domains: Chemical Sciences; Coordination chemistry

Hadi Hachem, Zijun Xu, Nathalie Bellec, Olivier Jeannin, Pascale Auban-Senzier, et al.. Neutral, closed-shell nickel bis(2-alkylthiothiazole-4,5-dithiolate) complexes as single component molecular conductors. Dalton Transactions, 2018, 47 (18), pp.6580-6589. ⟨10.1039/c8dt00818c⟩. ⟨hal-01807073⟩