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Preparation and electrochemistry of thiolate-phosphine complexes of osmium

Authors
Journal
Polyhedron
0277-5387
Publisher
Elsevier
Publication Date
Volume
15
Issue
20
Identifiers
DOI: 10.1016/0277-5387(96)00067-8
Disciplines
  • Chemistry

Abstract

Abstract —The paramagnetic, octrahedral complexes [Os(SC 6F 5) 2(O 2CR)(PMe 2Ph) 2] (R = C 6F 5, 1; C 6H 4CF 3-2, 2; C 6H 4CF 3-3, 3; C 6H 4CF 3-4, 4; C 6H 4F-2, 5; C 6H 4F-3, 6; C 6H 4F-4, 7 ; CH 3, 8 ; CF 3, 9) have been prepared by treatment of the penta-coordinated complex [Os(SC 6F 5) 3(PMe 2Ph) 2] with the corresponding fluoro-carboxylic acid. The diamagnetic, pentacoordinate, osmium(IV) complexes [OsX(SR) 3(PR 3 1)] [X = Cl, Br or SR; R = C 6F 4H-4 or C 6F 5 ; PR 3 1 = PMe 2Ph, PPh 3, P(C 6H 4Y-4) 3 (Y = F, OMe, CF 3, Me or Cl)] (10–14, 18, 20–23), show two successive one-electron reductions. Electrochemical data are also given for [Os(SC 6F 5) 3(PMe 2Ph) 2] (19).

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