The remarkable stability of [Cu(dppf)(odppf)]BF4 [dppf = 1,1'-bis(diphenylphosphino)ferrocene, odppf = 1,1'-bis(oxodiphenylphosphoranyl)ferrocene], characterized in the solid state by X-ray analysis and in solution by P-31 NMR spectroscopy, reveals a marked borderline character of copper(I).
Synthesis and structure of the first phosphine oxide complex of copper(I): evidence for a marked "borderline" character of the metal centre.
PILLONI, GIUSEPPE;CORAIN, BENEDETTO;LONGATO, BRUNO;ZANOTTI, GIUSEPPE
1993
Abstract
The remarkable stability of [Cu(dppf)(odppf)]BF4 [dppf = 1,1'-bis(diphenylphosphino)ferrocene, odppf = 1,1'-bis(oxodiphenylphosphoranyl)ferrocene], characterized in the solid state by X-ray analysis and in solution by P-31 NMR spectroscopy, reveals a marked borderline character of copper(I).
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