1245499-21-1Relevant articles and documents
Molecular gyroscope having a halogen-substituted p-phenylene rotator and silaalkane chain stators
Setaka, Wataru,Ohmizu, Soichiro,Kira, Mitsuo
supporting information; experimental part, p. 468 - 469 (2010/08/22)
2,3-Halophenylene-bridged polysilaalkane macrocages lb and Ic were synthesized as novel molecular gyroscopes. X-ray crystallographic data showed that the structures of the macrocages were deformed to avoid contact between the halogens and the silaalkane cage. The 2,3-dichlorophenylene derivative 1c shows restricted rotation of the phenylene in solution as observed by variable temperature 1HNMR spectroscopy.