| Автор | Harris, Robin K. |
| Автор | Wazeer, Mohamed I. M. |
| Автор | Schlak, Ottfried |
| Автор | Schmutzler, Reinhard |
| Дата выпуска | 1974 |
| dc.description | The preparation of a series of methyl- and methoxy-fluoro-1,3,2,4-diazadiphosphetidines [(I) and (II) respectively] has been accomplished, in many cases by substitution reactions on heavily fluorinated diazadiphosphetidines using organometallic reagents.The <sup>19</sup>F{<sup>1</sup>H} and <sup>31</sup>P{<sup>1</sup>H} n.m.r. spectra of these compounds have been analysed, using subspectral techniques and iterative computer fitting. In only two cases axial â equatorial exchange may be slowed on the n.m.r. time scale at low temperatures; the reason for this lies in the concerted pseudorotation nature of the exchange. The chemical shift and coupling constant data show the influences of substituents and geometry. It has been demonstrated that <sup>2</sup> J PP is positive, and its values can be reproduced by a product of parameters characteristic of the environment of each phosphorus nucleus. |
| Формат | application.pdf |
| Издатель | Royal Society of Chemistry |
| Название | Preparative and nuclear magnetic resonance studies of 1,3,2,4-diazadiphosphetidines. Part IV. Methyl- and methoxy-fluorodiazadiphosphetidines |
| Тип | research-article |
| DOI | 10.1039/DT9740001912 |
| Electronic ISSN | 1364-5447 |
| Print ISSN | 1472-7773 |
| Журнал | Journal of the Chemical Society, Dalton Transactions |
| Первая страница | 1912 |
| Последняя страница | 1921 |
| Выпуск | 17 |
