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PNSO Ligands as a Tool to Study Metal Bonding of Electron‐Deficient Sulfinyl Groups
Author(s) -
Revés Marc,
Riera Antoni,
Verdaguer Xavier
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200900521
Subject(s) - chemistry , reactivity (psychology) , alkyne , metal , ligand (biochemistry) , trifluoromethyl , sulfur , triple bond , medicinal chemistry , crystallography , stereochemistry , polymer chemistry , organic chemistry , catalysis , double bond , biochemistry , alkyl , receptor , medicine , alternative medicine , pathology
A family of N ‐phosphanylsulfinamide (PNSO) ligands with electron‐deficient sulfinyl groups was synthesized. Reaction with Co 2 –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 (Δν) for these complexes closely correlates with the χ i 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, 69451 Weinheim, Germany, 2009)