https://doi.org/10.1140/epjs/s11734-026-02181-6
Regular Article
Investigation of per chlorobenzoic acid derivatives of alkyloxybenzoic acid for optical and memory device applications
Physics Department. Schools of Applied Sciences’ and Humanities, Vignan’s University Foundation for Science, Technology and Research, 522213, Vadlamudi, Andhra Pradesh, India
a
This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
25
October
2025
Accepted:
27
January
2026
Published online:
16
February
2026
Abstract
A new series of mesogens with hydrogen bond is designed, isolated and characterised. Complimentary proton donor and electron acceptor bonds are formed between per chlorobenzoic acid and alkyloxybenzoic acids. Fourier transform infrared studies confirmed the formation of hydrogen bond. Nematic and smectic G phases were identified. Phase diagram is elucidated from the data of DSC and POM studies. A noticeable observation is the detection of optical shuttering in the entire thermal range of nematic phase. Yet, another fascinating observation is the detection of memory in the total nematic thermal range of these homologues. Dielectric hysteresis in nematic phase is detected and it is further observed that as the temperature of the nematic phase is altered, the area of the hysteresis loop also varied correspondingly. Thus, these homologues are promising candidates for device applications. Calculation of internal energy of individual mesogens derived from corresponding DSC thermograms is proposed for the first time.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
