D. Catalano et al., H-2 NMR spectroscopy of liquid crystals: structure and orientational orderof a chiral smectogen in its A, C* and J* phases, LIQ CRYST, 27(5), 2000, pp. 621-627
H-2 NMR spectroscopy is employed to investigate the orientational order, mo
lecular structure and phase transitions of the chiral smectic liquid crysta
l 1-methylheptyl 4'-(4-n-decyloxybenzoyloxy)biphenyl-4-carboxylate (10B1M7)
, showing smectic A, C* and J phases, as well as several sub-smectic C* pha
ses. Two optically pure, differently deuteriated isotopomers have been purp
osely synthesized and studied.