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 |
|