The ReH6[P(C6H5)3]2− ion as a ligand: complexes with M(CO)3 fragments (M = Cr, Mo, W)

Autor:	Atta M. Arif, Jeffrey W. Freeman, Richard D. Ernst
Rok vydání:	1995
Předmět:	Chemistry Ligand chemistry.chemical_element Diglyme Crystal structure Rhenium Inorganic Chemistry Crystallography chemistry.chemical_compound Materials Chemistry Physical and Theoretical Chemistry Single crystal Phosphine Coordination geometry Monoclinic crystal system
Zdroj:	Inorganica Chimica Acta. 240:33-40
ISSN:	0020-1693
DOI:	10.1016/0020-1693(95)04513-9
Popis:	The reactions of [(H5C6)3P]2ReH6− with (CH3CN)3Cr(CO)3, (diglyme)Mo(CO)3 or (C3H7CN)3W(CO)3 led to the formation of [(H5C6)3P]2ReH6M(CO)3− (M = Cr, Mo, W) complexes. These have been characterized by IR and NMR spectroscopies, as well as elemental analyses. A single crystal X-ray diffraction study has also been carried out for the M = Cr complex as a K(18-crown-6)+ salt. The complex crystallizes as a THF monosolvate in the monoclinic space group P21/n with a = 22.323(6), b = 9.523(2), c = 27.502(5) A , β = 104.98(2) 0 and V = 5648 A 3 for Z = 4 . The ReCr separation is 2.5745(12) A, and the two phosphine ligands are oriented unsymmetrically. Although the hydride ligands were not found, the presence of three bridging hydrides and a dodecahedral coordination geometry about rhenium could be inferred. Low temperature 1H and 31P NMR spectroscopic studies did not reveal the low symmetry of the solid state structure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61006ec1970882a62172497e5c993cc9 https://doi.org/10.1016/0020-1693(95)04513-9 Zobrazit plný text záznamu Full Text from ScienceDirect