✦ LIBER ✦
Electron spin resonance of a stereochemically non-rigid penta-coordinate phosphoranyl radical
✍ Scribed by Paul J. Krusic; Paul Meakin
- Book ID
- 103011747
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 441 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Evidence based on temperature dependent ESR line shape changes is presented for the mobility of thdfigarrds in the phosphorus-centered radical (CHa)sCOPHs rcsu!ting by addirion of a tert-butosy radical to phosphine CNDO calculations favor for the slow exchange limit a trigonal bipyramidal structure with an asial osygen atom and with the unpaired electron in an equatorial position. A density mntrix analysis gives an activation energy of 5.3 kcaI/mole for the exchange process which permutes the hydrogen atoms.