4.3 Article

Molecular Gyroscope Having a Halogen-substituted p-Phenylene Rotator and Silaalkane Chain Stators

Journal

CHEMISTRY LETTERS
Volume 39, Issue 5, Pages 468-469

Publisher

CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2010.468

Keywords

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Funding

  1. Ministry of Education, Culture, Sports, Science and Technology of Japan [17002005]
  2. Grants-in-Aid for Scientific Research [17002005] Funding Source: KAKEN

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2,3-Halophenylene-bridged polysilaalkane macrocages 1b and 1c 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 H-1 NMR spectroscopy.

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