Reaction of ruthenium(II) and osmium(II) hydrides with anhydrous HF

Autor: S. Coleman, Karl, H. Holloway, John, G. Hope, Eric, Langer, John
Zdroj: Journal of the Chemical Society, Dalton Transactions; January 1997, Vol. 1997 Issue: 23 p4555-4560, 6p
Abstrakt: The reactions of anhydrous HF with the ruthenium(II) and osmium(II) hydride complexes [MH2(CO)x(PPh3)y] (M 4;= 4;Ru or Os; x 4;= 4;y 4;= 4;2; x 4;= 4;1, y 4;= 4;3) have been studied. For [OC-6-13][MH2(CO)2(PPh3)2], elimination of dihydrogen affords the previously described [OC-6-13][MF2(CO)2(PPh3)2]. For [OC-6-13][MH2(CO)(PPh3)3], elimination of dihydrogen is accompanied by loss of one phosphine ligand and aggregation to give the novel, triply fluoride-bridged, dinuclear, [M2(µ-F)3(CO)2(PPh3)4][HF2]; anion exchange with Na[BPh4] afford air-stable products. These complexes have been characterised by mass spectrometry, NMR, IR and metal-edge extended X-ray absorption fine structure spectroscopies which confirm their dinuclear structures.
Databáze: Supplemental Index