Titanocene complexes of the N-methyl- and N-phenyl-1,3-thiazoline-2-thione-4,5-dithiolates and 4,5-diselenolate ligands.

Samar Eid (1) , Thierry Roisnel (1) , Dominique Lorcy (1)

1 ISCR - Institut des Sciences Chimiques de Rennes

Cp2Ti(dithiolene) and Cp2Ti(diselenolene) complexes contg. the N-methyl-1,3-thiazoline-2-thione-4,5-dithiolate ligand (Me-thiazdt), the N-phenyl-1,3-thiazoline-2-thione-4,5-dithiolate ligand (Ph-thiazdt) and the N-methyl-1,3-thiazoline-2-thione-4,5-diselenolate ligand (Me-thiazds) were synthesized. Three approaches were developed to generate the dithiolene or the diselenolene ligands which were reacted with Cp2TiCl2 to form the corresponding heteroleptic complexes. Their x-ray crystal structures, UV-visible absorption spectra as well as their redox properties, detd. by cyclic voltammetry were studied and discussed. Variable-temp. 1H NMR expts. were performed to det. the activation energies of the chelate ring inversion.

Mots clés: crystal structure titanocene complex thiazolinethione dithiolate diselenolate ligand; mol structure titanocene complex thiazolinethione dithiolate diselenolate ligand; ring inversion activation energy titanocene complex thiazolinethione dithiolate diselenolate; titanocene complex thiazolinethione dithiolate diselenolate ligand prepn redox potential

Domaines: Chimie organique

Samar Eid, Thierry Roisnel, Dominique Lorcy. Titanocene complexes of the N-methyl- and N-phenyl-1,3-thiazoline-2-thione-4,5-dithiolates and 4,5-diselenolate ligands.. Journal of Organometallic Chemistry, 2008, 693, pp.2755--2760. ⟨10.1016/j.jorganchem.2008.05.021⟩. ⟨hal-01151573⟩