Автор | Fischer, Jean |
Автор | Mitschler, Andre |
Автор | Mathey, Francois |
Автор | Mercier, Francois |
Дата выпуска | 1983 |
dc.description | A new P4C4 eight-membered macrocycle has been obtained in one step from 3,4-dimethyl-1-phenylphosphole. A comparison of the X-ray crystal structure of this P4C4 macrocycle with that of its decacarbonyldimolybdenum complex shows that the P4C4 crown gains a very high flexibility through an easy rotation of the adjacent phospholyl units round the Câ C and Pâ P bonds of the central eight-membered ring. This means that this P4C4 macrocycle can adapt its shape to the stereochemical requirements of the complexed metals. The Pâ P and Câ C bonds of the crown [average 2.191(3) and 1.47(1)Ã respectively] are significantly shorter than normal Pâ P and Câ C single bonds. Thus some conjugative interactions probably exist between the adjacent phospholyl rings. These interactions are suppressed in the decacarbonyldimolybdenum complex. |
Формат | application.pdf |
Издатель | Royal Society of Chemistry |
Название | Crystal and molecular structure of a new eight-membered tetraphospha-macrocycle, (–PCPhCMeCMeC–)4 |
Тип | research-article |
DOI | 10.1039/DT9830000841 |
Electronic ISSN | 1364-5447 |
Print ISSN | 1472-7773 |
Журнал | Journal of the Chemical Society, Dalton Transactions |
Первая страница | 841 |
Последняя страница | 845 |
Выпуск | 4 |