- 作者: 林心; 林渭川
- 作者服務機構: Department of Chemistry, National Taiwan University, Taipei, Taiwan 107
- 中文摘要: Magnetic nonequivalence of methylene protons in some 1,1,2-trisubstituted ethanes of the type XCH2 CHXY was studied in the medium in the medium of various solvents over the temperature range of 0-95℃. Asymmetry effect and rotamer populations have been considered to be two major contributions to magnetic nonequivalence of methylene protons in the title compounds. A graphic method has been proposed to determine the asymmetry effect for methyl 2, 3-dibromopropionate, ethyl 2, 3-dibromopropionate, methyl 2, 3-dichloropropionate, and (1,2-dibromoethyl) benzene um various solvents.
- 英文摘要: --
- 中文關鍵字: --
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