| 甲胺磷中P-S键键能的估算 |
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| 引用本文： | 彭盘英,罗逾兰,张剑敏,周奇峰,周志华,王玉萍.甲胺磷中P-S键键能的估算[J].南京师大学报,1999,22(1):48-51. |
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| 作者姓名： | 彭盘英 罗逾兰 张剑敏 周奇峰 周志华 王玉萍 |
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| 作者单位： | 南京师范大学化学系 |
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| 摘 要： | 甲胺磷中Ｐ－Ｓ键键能至今尚未有文献数据可查．本文根据甲胺磷的红外光谱，利用多原子分子中部分原子间形成的化学键的伸缩振动频率与键离解能之间的关系式，推测了甲胺磷中Ｐ－Ｓ键的单键键能为２４３．８３ｋＪ／ｍｏｌ．并通过精胺转化成甲胺磷的反应热的测定，证实了红外光谱法推测的Ｐ－Ｓ键键能的可靠性．
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| 关 键 词： | 磷硫键 键能 红外光谱 反应热 |
| 修稿时间： | :1998-10-1 |
Estimation of the P-S Bond Energy in the Methamidophos Molecule |
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| Peng Pangying,LouYulan,Zhang Jianming,Zhou Qifen,Zhou Zhihua,Wang Yuping.Estimation of the P-S Bond Energy in the Methamidophos Molecule[J].Journal of Nanjing Normal University(Natural Science Edition),1999,22(1):48-51. |
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| Authors: | Peng Pangying LouYulan Zhang Jianming Zhou Qifen Zhou Zhihua Wang Yuping |
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| Abstract: | Up to now, the P-S single bond energy has not been consulted from literature. In this paper , the P-S bond energy has been calculated from infrared spectrum of methamidophos by using relationship between uncoupled infrared streching frequencies and bond dissociation energies in polyatomic molecules .On the other hand the P-S bond energy was estimated by calculation of reaction heat from (MeO) 2P(S)NH 2 transform into MeS(MeO)P(O)NH 2. Two values of P-S bond energy estimated from different method are nearing completion. |
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| Keywords: | P-S bond bond energy infrared spectrum reaction heat |
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