Structure of 1-[(R)-1',2-bis(diphenylphosphino)ferrocenyl]-(S)-N,N-dimethylethylamine

Triphenylstannylferrocene and 1,1'-bis(triphenylstannyl)ferrocene

“…The Fe...C distances in (1) and (2) are very regular with ranses of 2.028 (5)-2.055 (3) and 2.042(4)-2.070 (3) A, respectively. These distances are comparable with those found in ferrocene (Seiler & Dunitz, 1982) and its derivatives (Shawkataly, Kalil, Fun, Chinnakali, Teoh, Ito & Sawamura, 1993;Shawkataly, Fun, Chinnakali, Yip, Teoh, Ito & Sawamura, 1993;Einstein & Willis, 1980) and are also in the range of those found in structures containing the phenylferrocenyl unit where the Fe--C distances range from 1.957 to 2.212 A with a mean of 2.041 A. Structures with a crowded coordination sphere have a larger range of distances with a mean greater than 2.041 A (Roberts, Silver, Yamin, Drew & Eberhardt, 1988).…”

Synthesis and Characterization of Boron-Containing Ferrocenyl Ligands for Asymmetric Catalysis

“…The 1 H and 31 P NMR and liquid secondary ion mass spectrometry (LSIMS) spectra and the X-ray crystallographic structure (Figure ) are all consistent with the formulation of ( S,R )-BPPFAP. The overall structural characteristics of BPPFAP are similar to those of 1-[( R )-1‘,2-bis(diphenylphosphino)ferrocenyl]-( S )- N , N -dimethylethylamine 2 X-ray crystal structure for rac -BPPFAP ( 2 ).…”