Rhodium (Thiophosphinoyl)(trimethylsilyl)methanide and Bis(thiophosphinoyl)methanide Complexes: S~S vs. C~S Coordination
Written by Hadrien Heuclin on January 27, 2012 – 9:30 am -Abstract
A comparative study of the coordination modes of a (thiophosphinoyl)(trimethylsilyl)methanide (1–·Li+) and bis(thiophosphinoyl)methanide (2–·Li+) ligand with RhI was carried out. Several complexes were synthesized and characterized. For 1–·Li+, C~S coordination is forced, whereas for 2–·Li+, S~S and C~S coordination can be achieved. In one case, a dynamic equilibrium between these two modes of coordination was observed. DFT calculations were carried out to rationalize this phenomenon and the stability of the methanide compounds.
The reactions of mono and bis(thiophosphinoyl)methanides with an RhI precursor yielded tetracoordinate RhI complexes in which different coordination modes of the ligands have been observed.
Posted in biochem, chemistry, inorganic |
