The behaviour of the H-2 NMR line-width throughout the whole mesophasic range of the ferroelectric liquid crystal "1-methylheptyl 4'-(4"-n-decyloxybenzoyloxy) biphenyl-4-carboxylate" (10B1M7) is here reported and discussed. Static Fringe Field NMR Diffusometry measurements from the isotropic to the anticlinic phase have been performed leading to a significant result concerning the tumbling diffusional coefficient (D-perpendicular to). These results have been compared to X-Ray measurements and H-2 NMR linewidths in order to explain the peculiar behaviour occurring at the transition. between the ferroelectric (FLC) and the antiferroelectric (AFLC) liquid crystalline phases.
From the synclinic to the anticlinic smectic phases: a Deuterium NMR and Diffusion NMR study
DOMENICI, VALENTINA;VERACINI, CARLO ALBERTO
2005-01-01
Abstract
The behaviour of the H-2 NMR line-width throughout the whole mesophasic range of the ferroelectric liquid crystal "1-methylheptyl 4'-(4"-n-decyloxybenzoyloxy) biphenyl-4-carboxylate" (10B1M7) is here reported and discussed. Static Fringe Field NMR Diffusometry measurements from the isotropic to the anticlinic phase have been performed leading to a significant result concerning the tumbling diffusional coefficient (D-perpendicular to). These results have been compared to X-Ray measurements and H-2 NMR linewidths in order to explain the peculiar behaviour occurring at the transition. between the ferroelectric (FLC) and the antiferroelectric (AFLC) liquid crystalline phases.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
