𝔖 Bobbio Scriptorium
✦   LIBER   ✦

EPR and ENDOR study of thermally produced triphenylmethyl radicals

✍ Scribed by I. C. Lewis; L. S. Singer

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
305 KB
Volume
22
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

The ENDOR spectnun of the triphenylmethyl radical formed by heat treatment of triphenylmethane has been measured in solution at 131 "C. The derived hyperfine coupling constants of 2.770,2.556 and 1 . B G were used to simulate the extremely well resolved EPR spectnun. These coupling constants are in good agreement with spin densities determined for the planar radical by the McLachlan method.

📜 SIMILAR VOLUMES

ENDOR and EPR studies on polycyclic arom
ENDOR and EPR studies on polycyclic aromatic radical cations
✍ Hong Sang; Hanqing Wang; K. P. Such; F. Jent 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 346 KB

## Abstract Several polycyclic aromatic radical cations produced in Friedel–Crafts alkylation reactions were studied by EPR and ENDOR methods, and the following were identified: 1,2,5,6‐tetramethylanthracene, 2,3,6,7,9,10‐hexamethylanthracene, 3,6,11,14‐tetramethyldibenzo [__a,c__]triphenylene and

216. EPR-ENDOR studies of stable radical
216. EPR-ENDOR studies of stable radicals in pyrolysis
✍ I.C. Lewis; L.S. Singer 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 124 KB

The direct measurements of the principal thermal expansion coefficients were carried out for the specimens of pyrolytic graphite at temperatures between 50 and 55O"C, using an apparatus with high sensitivity. Resolving power of the apparatus was f 100 A. The c-axis thermal expansion coefficient was

EPR and ENDOR study of chiral nitroxides
EPR and ENDOR study of chiral nitroxides
✍ Hartmut B. Stegmann; Frank-Martin Schaber; Paul Schuler; Klaus Scheffler 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 408 KB

Racemic and achiral alkyl aryl nitroxides were examined at various temperatures. The restricted rotation of the aminoxyl substituents was indicated both by the β-proton coupling constants and by the inequivalence of the aromatic ortho protons. These results are interpreted by the presence of two dif

A CW-EPR, ENDOR and special TRIPLE reson
A CW-EPR, ENDOR and special TRIPLE resonance study of a novel magnesium ketyl radical
✍ Damien M. Murphy; Lucia E. McDyre; Emma Carter; Andreas Stasch; Cameron Jones 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 289 KB

## Abstract In this paper, the paramagnetic properties of a novel magnesium ketyl radical (compound 1), formed by reduction of benzophenone with a dimeric Mg(I) complex in the presence of dimethylaminopyridine, are described. Using CW EPR, ENDOR and special TRIPLE resonance, the spin distribution i