| 有机磷化合物的NMR研究——Ⅱ0,0-二烷基膦酸酯的1H、13C和31PNMR谱 |
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| 引用本文： | 张殿坤,李玉桂,王国洪,缪方明,刘小兰.有机磷化合物的NMR研究——Ⅱ0,0-二烷基膦酸酯的1H、13C和31PNMR谱[J].波谱学杂志,1988,5(2):107-116. |
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| 作者姓名： | 张殿坤 李玉桂 王国洪 缪方明 刘小兰 |
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| 作者单位： | 1. 南开大学元素有机化学研究所 天津;2. 天津师范大学化学系 |
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| 摘 要： | 本文报道了21个0,0一二烷基膦酸酯类化合物的1H、13C和31P NMR参数。研究和讨论了不等价的二烷基1H、13C化学位移和磷碳偶合常数与立体化学的关系。测定了(CH3CH2O)2P(O)CH(CH2NO2)(p-OCH3C6H4)的13C自旋一晶格弛豫时间T1,二乙基13C T1间的差别,说明在类似化合物中,含有化学位移各向异性对弛豫的贡献。
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| 关 键 词： | 0 0一二烷基膦酸酯 NMR谱 手性碳原子 弛豫时间 |
| 收稿时间： | 1987-02-23 |
NUCLEAR MAGNETIC RESONANCE OF ORGANOPHOSPHORUS COMPOUNDS Ⅱ. 1H,31C AND 31P NMR OF O,O-DIALKYLPHOSPHONATES |
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| Zhang Diankun Li Yugui Wang Guohung.NUCLEAR MAGNETIC RESONANCE OF ORGANOPHOSPHORUS COMPOUNDS Ⅱ. 1H,31C AND 31P NMR OF O,O-DIALKYLPHOSPHONATES[J].Chinese Journal of Magnetic Resonance,1988,5(2):107-116. |
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| Authors: | Zhang Diankun Li Yugui Wang Guohung |
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| Institution: | 1. Institute of elemento-organic Chemistry, Nankai University Tianjin;2. Department of Chmisiry, Tianjin Normal Universiiy Shijiazhuang |
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| Abstract: | 1H, 13C and 31P NMR data are reported for 21 0,0-dialkyl phosphonates. Stereochemical dependence of 1H, 13C chemical shifts in unequal dialkyl groups and 31P 13C spin-spin coupling constants were studied and discussed.13C spin-lattice relaxation times, T1, for (CH3CH20)2P(0)CH(CH2N02) (p-OCH3C6H4) were measured. There are differences between 13C spin-lattice relaxation in two ethyl groups because the chemical shift anisotropy made contributions to relaxation. |
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| Keywords: | 0 0-dialkylphosphonate NMR spectrum chiral carbon atom relaaxation time |
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