Dithiolene complexes as metalloligands: [Cu(en)2][Cu(mnt)2], an S = ½ spin chain - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Comptes Rendus. Chimie Année : 2012

Dithiolene complexes as metalloligands: [Cu(en)2][Cu(mnt)2], an S = ½ spin chain

Résumé

The paramagnetic dithiolene complex [Cu(mnt)2]2- (mnt: 1,2-dicyanoethylene-1,2-dithiolate) is used as metalloligand for coordination of dicationic [Cu(en)2]2+ (en:ethylenediamine) complex, leading to the formation of chains of alternating [Cu(mnt)2]2-and [Cu(en)2]2+ moieties through C=N...Cu...N=C trans coordination with N...Cu distance of 2.664(4) A˚ and a noticeable deviation from linearity as the C=N...Cu angle amounts to 146.3(3)8. The [Cu(en)2][Cu(mnt)2] salt exhibits weak antiferromagnetic interactions between spin carriers along the chains and slightly stronger inter-chain [Cu(mnt)2]...[Cu(mnt)2] antiferromagnetic interactions through intermolecular S...S contacts.

Domaines

Matériaux

Dates et versions

hal-00759097 , version 1 (30-11-2012)

Identifiants

Citer

Olivier Jeannin, Rodolphe Clérac, Marc Fourmigué. Dithiolene complexes as metalloligands: [Cu(en)2][Cu(mnt)2], an S = ½ spin chain. Comptes Rendus. Chimie, 2012, 15, pp. 845-848. ⟨10.1016/j.crci.2012.04.004⟩. ⟨hal-00759097⟩
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