## Abstract Deuterated analogues of __C__‐phenyl __N‐tert__‐butyl nitrone (PBN) were synthesized to provide significant gains in spectral sensitivity and resolution in electron paramagnetic resonance (EPR) and electron nuclear double resonance (ENDOR) applications. Three deuterated α‐phenyl __N‐ter
Synthesis and EPR and ENDOR investigations of Coppinger's radical with perdeuteriated tert-butyl groups
✍ Scribed by J. von Gersdorff; B. Kirste; H. Kurreck
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 409 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
The synthesis of Coppinger's radical (galvinoxyl) with perdeuteriated tert-butyl groups is described. Its EPR spectrum exhibits markedly decreased line widths (0.015 mT) compared with the unlabelled radical (0.039 mT). The correspondingly higher resolution allows a complete analysis of the -C hyperfine coupling constants. A comparison of the EPR and ENDOR spectra of uulabelled and of two selectively deuteriated Copginger's radicals is given.
📜 SIMILAR VOLUMES
Linear polyaryl(ether ketones) containing tert-butyl pendent groups were prepared from aromatic hydrocarbons and aromatic diacid chlorides, both classes of monomers containing tert-butyl pendent groups. The polymers were prepared in high yield and high molecular weight by low-temperature precipitati
## Abstract Bilirubin and biliverdin analogs bearing bulky adamantyl and __tert__‐butyl groups at the central C(10) position were synthesized and their structures were analyzed by nmr and ultraviolet‐visible spectroscopy and by molecular mechanics calculations, all of which collectively indicated a
The free radical promoted cationic polymerization of n-butyl vinyl-ether (BVE) was achieved by the thermal decompositon of N-[4,4-azobis-(4-cyanopentanoyl)]-bisdibenz(b, f)azepine (ADBA) in the presence of diphenyliodonium hexafluorophosphate (Ph2I+PF6) or silver hexafluorophosphate (AgPF6). Polymer