873797-41-2Relevant academic research and scientific papers
Complex formation and rearrangement reactions of the phosphine hydride anions [OsH3(PPh3)3] and [IrH 2(PPh3)3]
Guilera, Gemma,McGrady, G. Scan,Steed, Jonathan W.,Jones, Aled L.
, p. 122 - 127 (2006)
[OsH4(PPh3)3] (1) reacts with KH in THF in the presence of 18-crown-6 to form [K(THF)(18-crown6)][OsH3(PPh 3)3] (2), characterized by NMR spectroscopy and X-ray crystallography; cation-anion contact is achieved through three Os-H-...K moieties. In contrast, [IrH3(PPh3)3] (6) reacts with KH and 18crown-6 in THF with redistribution of ligands to produce the known bis-phosphine complex [K(18crown-6)][IrH4(PPh3) 2] (7). This reaction has been followed by NMR spectroscopy, and [IrH2(PPh3)3]has been identified as a likely intermediate. K[OsH3(PPh3)3] (3) reacts with Bu3nSnCl to form the tinosmium complex [OsH 3(SnBu3n)(PPh3)3] (8), characterized by NMR spectroscopy and X-ray crystallography. The molecule contains a seven-coordinate osmium center, which can be described approximately as a distorted fac-[OsH3(PPh3)] arrangement, with the SnBu 3n moiety capping the OsH3 face.
