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dc.contributor.author | Arshinova R. | |
dc.contributor.author | Gnevashev S. | |
dc.contributor.author | Bovin A. | |
dc.contributor.author | Tsvetkov E. | |
dc.date.accessioned | 2018-09-17T20:46:47Z | |
dc.date.available | 2018-09-17T20:46:47Z | |
dc.date.issued | 1991 | |
dc.identifier.issn | 0568-5230 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/134038 | |
dc.description.abstract | 1H NMR spectroscopy, measurements of dipole moments, and the Kerr effect have been used to study the conformational structure in solutions of 3-X-3-oxo-6,7-benzo-1,5,3-dioxaphosphepines (X=Me, Et, Ph, Cl, NEt2, OEt, OPh). On the basis of x-ray diffraction data, by means of the Dillen-Geise method, possible conformers of the seven-membered ring have been described quantitatively: chair, twist, and twist-boat. It has been shown that the compounds are characterized by a three-component equilibrium of chair and flexible forms. The relative populations of the conformers depend on the nature of the substituent X. The relationships in internal rotation around the P-Ph and P-O(R) bonds are discussed. © 1991 Plenum Publishing Corporation. | |
dc.relation.ispartofseries | Bulletin of the Academy of Sciences of the USSR Division of Chemical Science | |
dc.title | 1H NMR spectra, dipole moments, and conformations of 3-oxo-6,7-benzo-1,5,3-dioxaphosphepines | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 7 | |
dc.relation.ispartofseries-volume | 40 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 1338 | |
dc.source.id | SCOPUS05685230-1991-40-7-SID34249928567 |