Use of liquid crystal solvents for obtaining isotropic scalar nuclear spin‐spin coupling constants

Nuclear magnetic resonance spectrometry

“…Investigations of variable frequency pulsed NMR (604), nitrogen-15 labeled formamide (605), p-dithin (606), ethylene carbonate and monothiocarbonate (607), D20 (608), paraffinic chain motions (609), furan and thiophene (610), methyl halides (611), amphiphiles (612), and sodium-23 ions (613) have been reported for lyotropic liquid crystal systems. Relaxation in nematic phase liquid crystals (614-616) has been described as have studies of the following molecules oriented in the nematic phase: ethylene sulfite (617), ethylene oxide and sulfide (618) ethylene carbonates and thiocarbonates (619-621), substituted benzenes (622-631), cyclopropane (632), cyclobutane (633), 1,3-butadiene (634), trimethylene oxide (635), deuterated methanes and 2,2dimethylpropane (636), norbornadiene (637), quinoxaline (638), 1,1-difluoroethane (639), 1,2-difluoroethane (640), 3,5-dichloropyridine (641), 7-picoline (642), anisylidene p-aminophenyl acetate (643), dimethylformamide (644), 1.4-naphthoquinone (645), butadiene sulfone (646), thiophene (647) 1,4-dioxin and 1,4-dithiin (648), thieno[2,3ojthiophene (649), 2,1,3-benzothiadiazole (650), 2-furaldehyde (651), phthalazine (652), furanand thiophene-2.5dialdehydes (653), acetonitrile (654), acetone (655), tropone (656), 3,3'-biisoxazole (657), ß-propiolactone (658) , l,l,2,2-tetrachloro-3,3,4,4-tetrafluorocyclobutane (659) , methylmercuric halides (660), -cyclopentadienylmanganese tricarbonyl (661), and the hydride cluster, H3Ru3,CO)6C(CH3) (662).…”