The "P and "C NMR spectra of all twelve phenoxychlorocyclotriphosphazenes of general formula N3P3Cb-,(OC6H5), (n = 1-6) were assigned in detail. With samples abundant in one homolog, but with a disparity between geometrical isomers, the signals due to the cis and trans isomers of N3P3C14(OC6H5)2 and
Carbon-13 and phosphorus-31 NMR study of some crown ethers containing phosphorus atoms
โ Scribed by E. J. Vincent; M. El Malouli Bibout; G. Peiffer; C. Siv; K. Pannell
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 137 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0749-1581
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โฆ Synopsis
Abstract
Eight monoโ and diphosphacrown ethers (from an 11โ22โmembered ring) were studied by ^13^C and ^31^P NMR spectroscopy and their chemical shifts are reported.
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## Carbon -I3 chemical shifts and PC coupling constants of seven bicyclic phosphoranes[l -aikyl or 1 -aryl-2,8-dioxa-5-aza-lphospha(V)bicyclo[3.3.0]octanes] and their 3-and 6-substituted bicyclic phosphoranes were verified using changes in the '3C chemical shifts and the J(PC) values.