✍ Scribed by Jürgen K Dohrmann; Wolfgang Kieslich
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The electron spin resonance spectra of the tris(4-nitrophenyl)methyl and tris(2,3,5,6-tetrafluoro-4-nitro-pheny1)methyl radicals in toluene solution have been obtained and their "N, ' % and 'H hypefine splitting constants have been determined. Analysis of the data indicates that fluorine substituent
High-resolution ESR. spectra of the radicals CH2COOR, CH3CHCOOR and (CH3)ZCCOOR with R = CH3, CH2CH3, CH (CH,), and C (CH,), in liquid solution confirm planar energy-minimum structures with substantial barriers to internal rotation about the C, CO-bonds (-40 kJ/mol) and partial n-electron delocaliza
The asphaltene of the Athabasca bitumen exhibits a single, structureless e.s.r. signal at a g-value of 2.0032 with an intensity corresponding to approximately one free spin per ninety molecules. From the temperature dependence of the absorption it is concluded that absorption is due to stable polycy