Abstract
The complex dielectric constants of 4-(1-methylheptyloxycalbonyl) phenyl 4'-octyloxybiphenyl-4-carboxylate (MHPOBC) with different optical purities (R:S = 6:4, 9:1) were measured under pressure. In MHPOBC (R:S=6:4, 20%ee), the temperature width of the chiral smectic-C (SmC*) phase increased with pressure. On the other hand, the temperature width of the SmC* phase in MHPOBC (R:S=9:1, 80%ee) was almost independent of pressure at low pressures, but the SmC* phase vanished above 100 MPa. The chiral smectic-Cα (SmCα*) phase instead of the SmC* phase widened at 150 MPa. From these results, including those of previous studies, the SmC* phase widened with pressure when the optical purity was below 50%ee and vanished under pressure when the optical purity was above 80%ee. It is suggested that the disappearance of the SmC* phase under pressure is related to the appearance of the SmCα* phase at atmospheric pressure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
