Structural Investigation of Biphenyl Derivatives

The crystal structures of three sterically fixed biphenyls, 2,2'-biphenylbis(1-cyclohexanol), C₂₄H₃₀O₂, (I), 2,2;7,7-bis(pentamethylene)dibenzo[c,e]dihydrooxepin {alternative name 2',7'-dihydrodispiro[cyclohexane-1,2'-dibenzo[c,e]oxepine-7',1"-cyclohexane]}, C₂₄H₂₈O, (II), and 3b,4,5,6,7,7a,10b,11,12,13,14,14a-dodecahydrodibenzo[e,l]pyrene, C₂₄H₂₆, (III), are described. Results are compared with those from a conformational analysis performed using the molecular modelling program MOMO.

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