I. Yavari et al., CONFIGURATIONS OF CYCLODODECA-1,2,4,5,7,8,10,11-OCTAENE AND ITS OCTAMETHYL DERIVATIVE, Journal of chemical research. Synopses, (10), 1997, pp. 376-377
MNDO, AM1 and PM3 semi-empirical SCF MO calculations are used to calcu
late the structure optimization and configurational properties of cycl
ododeca-1,2,4,5,7,8,10, 11-octaene (1) and its octamethyl derivative (
2); the combination of four allenic units of the same chirality yields
an enantiomeric pair of D-4 symmetry, which is the most stable config
uration of 1 and 2.