1224969-70-3Relevant articles and documents
PNSO ligands as a tool to study metal bonding of electron-deficient sulfinyl groups
Reves, Marc,Riera, Antoni,Verdaguer, Xavier
, p. 4446 - 4453 (2010/03/04)
A family of N-phosphanylsulfinamide (PNSO) ligands with electron-deficient sulfinyl groups was synthesized. Reaction with Co2-alkyne complexes yields P,S-bridged complexes. These complexes were used to study the metal bonding of different sulfinyl groups. IR spectroscopy, X-ray analysis, and Pauson-Khand reactivity studies indicated that electron-deficient sulfinyl groups provide enhanced S metal bonding. The mean CO stretching frequencies (Δv) for these complexes closely correlates with the χi parameter computed by Tolman for phosphane ligands. Among the studied sulfinyl groups, the trifluoromethyl PNSO ligand afforded the strongest sulfur-metal bond. Wiley-VCH Verlag GmbH & Co. KGaA.