ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Synthesis and Structure of Two Gold Complexes of Triphenylphosnium [Bis(diphenylphosphino)methylide]Triphenylphosphonium [bis(diphenylphosphino)methylide] (1) reacts with 1 or 2 equiv. of (CO)AuCl in a solvent to give mono- or binuclear Au(I) complexes 2 or 3, respectively. The Au-atoms are bound exclusively to P-atoms, and the ylidic C-atom remins an uncoordinated link between the three P-atoms. Contrary to findings with the free ligand 1, 31P-NMR spectra of 3 are in agreement with free P—C bond rotation in solution. 197Au-Mössbauer data for both complexes indicate the presence of Au(I) centers in a very similar environment. X-Ray structure analysis shows that the basic geometry of the free ligand is essentially retained in the complexes. Apart from the different degree of complexation, the structures of 2 and 3 differ only slightly in the conformation of the phenyl rings.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19860690732
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