| Abstract
| - Metalation of N-methyl-1,3-thiazoline-2-thione followed by reaction with elemental S or Se affords a simple andefficient approach to N-methyl-1,3-thiazoline-2-thione-4,5-dithiolate (Me-thiazdt) and the diselenolate (Me-thiazds)analogue. In the presence of metal II centers such as Zn, Ni, and Pd these ligands afford the correspondingdianionic dithiolene and diselenolene complexes. The Ni and Pd dianionic complexes are easily oxidized into themonoanionic species. Complexes were isolated and characterized by single-crystal X-ray crystallography. Mostoften a substitutional S/N−Me disorder is observed, attributable to the square-planar trans complexes disorderedon two positions or coexistence of both cis and trans isomers on inversion centers. Monoanionic complexes exhibita strong NIR absorption band with ε values up to 33 750 M-1 cm-1.
- Ni and Pd complexes of the dianionic and monoanionic dithiolene and diselenolene ligands bearing a thiazole backbone are prepared in useful yields and characterized structurally, showing a recurrent disordered motif with S/N−Me substitution.
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