Syntheses and structures of trans-[ReX(CO)(Ph 2PCH 2PPh 2) 2] (X  Cl, OReO 3), including a rhenium(I)-rhenium(VII) complex

• Published in: Journal of organometallic chemistry Vol. 462; no. 1; pp. 235 - 241
• Main Authors: Manojlovic-Muir, Ljubica, Muir, Kenneth W., Rennie, Moira-Ann, Xiao, Jianliang, Puddephatt, Richard J.
• Format: Journal Article
• Language: English
• Published: LAUSANNE Elsevier B.V 14.12.1993; Elsevier; Elsevier Science
• Subjects: Carbonyl and nitrosyl compounds, and their complexes; Carbonyl and nitrosyl metals; Chemistry; Chemistry, Inorganic & Nuclear; Chemistry, Organic; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Inorganic chemistry and origins of life; Inorganic compounds; Physical Sciences; Physics; Preparations and properties; Science & Technology; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; CHEMISTRY; CRYSTAL-STRUCTURE; RHENIUM; Rhenium V Chlorides; Molecular structure; Organic ligand; Transition metal Carbonyl Complexes; Anionic complex; Sodium Tetrahydroborates; Experimental study; X ray diffraction; Rhenium VII Carbonyl Complexes; Oxo complex; Rhenium I Carbonyl Complexes; Heptavalent metal Complexes; Bidentate ligand; Ditertiary phosphine; Trans stereoisomer; Chloro complex; Carbon monoxide; Univalent metal Complexes; Crystalline structure
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/0022-328X(93)83363-Z

Reduction of Re 2Cl 10 or NH 4ReO 4 by NaBH 4 in the presence of Ph 2PCH 2PPh 2, dppm, and CO provides a simple route to the complexes trans-[ReX(CO)(dppm) 2], 1, X  Cl or 2, X  ReO 4 respectively. Both complexes have been characterised by an X-ray diffraction study. In each complex the Ph 2PCH 2PPh 2 ligands adopt the chelating bonding mode and the coordination geometry around the rhenium(I) centre is distorted octahedral. Complex 2 contains both rhenium(I) and rhenium(VII) centres, and a ReO ReO 3 linkage with Re IO and Re VIIO distances of 2.207(3) Å and 1.754(3) Å, respectively.