A series of complexes of the phosphorus-based TTF ligand o-P2 with the metal ions Fe(II), Co(II), Ni(II), Pd(II), Pt(II), and Ag(I) - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Dalton Transactions Année : 2006

A series of complexes of the phosphorus-based TTF ligand o-P2 with the metal ions Fe(II), Co(II), Ni(II), Pd(II), Pt(II), and Ag(I)

Résumé

Reactions of 3,4-dimethyl-3 ,4-bis(diphenylphosphino)tetrathiafulvalene, o-P2, with [BF 4 ] − salts of Fe(II), Co(II), Ni(II), Pd(II), and Pt(II) yield complexes of general formula [M(o-P2) 2 ][BF 4 ] 2. Similar reactions between o-P2 and AgSbF 6 or AgPF 6 produced the salts [Ag(o-P2) 2 ][X] where X = [SbF 6 ] − or [PF 6 ] −. The resulting compounds were fully characterized by 1 H and 31 P{ 1 H} NMR, infrared and electronic absorption spectroscopies, cyclic voltammetry, FAB-MS and single-crystal X-ray diffraction. The paramagnetic Co(II) compound exhibits an S = 3/2 state with large spin–orbit coupling contribution at higher temperatures and an effective S = 1/2 state below 20 K. Electrochemical studies of the compounds indicate that the two functionalized TTF ligands are not in electronic communication and that they essentially behave as isolated redox centers.

Domaines

Chimie organique

Dates et versions

hal-01157854 , version 1 (28-05-2015)

Identifiants

Citer

Calvin Uzelmeier, Bradley Smucker, Eric W. Reinheimer, Mikhail Shatruk, Marc Fourmigué, et al.. A series of complexes of the phosphorus-based TTF ligand o-P2 with the metal ions Fe(II), Co(II), Ni(II), Pd(II), Pt(II), and Ag(I). Dalton Transactions, 2006, pp.5259-5268. ⟨10.1039/b610659e⟩. ⟨hal-01157854⟩
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