M. Lowendahl et al., 1ST EVIDENCE FOR A CARBON-BRIDGED [1.1]FERROCENOPHANE IN THE ANTI CONFORMATION - MOLECULAR-STRUCTURE OF EXO,EXO,ANTI-1,12-DIMETHYL[1.1]FERROCENOPHANE, Organometallics, 12(7), 1993, pp. 2417-2419
A carbon-bridged hane-exo,exo,anti-1,12-dimethyl[1.1]ferrocenophane (1
a)-has been identified for the first time, and its molecular structure
has been determined by x-ray diffraction. Stable anti conformers of c
arbon-bridged [1.1]ferrocenophanes have previously been ruled out beca
use of steric strain.