The analysis of the Iine'shifts yields ezq;3 Q//I = -2.5 MHz. This result could be rationalized by a population analysis of the nitrogen bonds, The theory predicts that the main contribution to the observed splitting comes from ihc unpzked n-electron.
Endor studies of organic radicals in liquid crystals
✍ Scribed by K.P. Dinse; R. Biehl; K. Möbius; H. Haustein
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 449 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
In the liquid crystal "Phase IV" which exhibits its nematic range between 16 and 76 "C ENDOR spectra of perinaphthenyi and tri-t-butylphencxyl radicals collld be recorded. it is demonstrated that the combined use of the ENDOR and liquid crystal methods yieIds valuabIe structural information.
📜 SIMILAR VOLUMES
Studies of a series of substituted benzo-, naphtho-, anthra-and phenanthrene-semiquinones, benzil semidione and Wurster's blue perchlorate by ENDOR spectroscopy in liquid crystalline solutions are reported. Sufficient solubility of the radical anions is achieved by using lipophilic counter ions such
IN FROZEN LIQUD CRYSTU Burkhard KIRSTE and Hans VAN WILLICEN An ENDOR stud) ofvanadyl biucctylaccIon.nc (VO(xx)2) abgncd m irozrn ncm~trc bqurd cry~& kwscnh.mccd ENDOR ugnal mrcnsrtrcs. whrch mdy ad m the mrcrprcta~~on oipowdcr CNDOR spectra obramcd from trJnsnron-mcrJI complckcs III ~ro~rop~cglxses
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