双(硫)磷酸化酰胺衍生物在CCL4、CD2CL2和CD3CN溶液中的结构和分子内迁移率

IF 0.4 Q4 MULTIDISCIPLINARY SCIENCES
F. Karataeva, I. Rakhmatullin, N. F. Galiullina, V. Klochkov
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引用次数: 0

摘要

用1H和31P核磁共振谱研究了双硫代磷酸化酰胺衍生物在CCl4、CD2Cl2和CD3CN溶液中的结构和分子内迁移率。对磷原子对称取代和不对称取代化合物的1H和31P谱进行了温度依赖性的比较分析。各种分子内过程被确定-围绕C-N键旋转,分子的构象转化,互变异构,以及与各种构象形式形成的亲磷重排。结果表明,该反应可达到多种形式的动态平衡,其中酰胺(磷-)形式具有明显的优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structure and Intramolecular Mobility of Some Derivatives of Bis(thio)phosphorylated Amides in CCL4, CD2CL2, and CD3CN Solutions
The structure and intramolecular mobility of some derivatives of bis(thio)phosphorylated amides in CCl4, CD2Cl2, and CD3CN solutions were examined by 1H and 31P NMR spectroscopy. A comparative analysis of the temperature-dependent 1H and 31P NMR spectra of the studied compounds with symmetric and asymmetric substitution at phosphorus atoms was carried out. Various intramolecular processes were identified – rotation around C-N bonds, conformational transformations of molecules, tautomerism, and phosphorylotropic rearrangement with the formation of various conformational forms. It was shown that a dynamic equilibrium of several forms is reached, with the amide (phosphazo-) form having a clear advantage.
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来源期刊
CiteScore
0.70
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审稿时长
17 weeks
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