Pw. Rabideau et al., THE PREFERRED U-CONFORMATION OF M-QUINQUEPHENYL - AN X-RAY CRYSTAL-STRUCTURE DETERMINATION AND MOLECULAR MECHANICS STUDY, Journal of the Chemical Society, Chemical Communications, (24), 1993, pp. 1795-1797
Surprisingly, the preferred geometry for m-quinquephenyl 1 has been sh
own to be U-shaped by both X-ray analysis and molecular mechanics calc
ulations.