Simulations of spectra and some physical attributes of specific homologous series of nematic liquid crystals in the range of 0.4–7.6 THz
DOI:
https://doi.org/10.4302/plp.v17i4.1370Abstract
In this research, we provide the outcomes of spectral calculations and selected characteristics of the NLC homologous series of cyanobiphenyls (nCB) and phenylcyclohexanes (nPCH) within the frequency range of 0.4–7.6 THz. Geometry optimizations, assessments of harmonic frequencies, and calculations of intensity were performed utilizing Scigress – Molecular Modelling Software developed by Fujitsu. The numerical analyses were executed following the standard DFT procedure, employing the B88-LYP functional and DZVP basis sets. The results obtained for the absorption spectra, along with physical parameters such as dielectric permittivity, refractive index, and birefringence, are detailed herein. Notably, we demonstrate that the results align well with the referenced experimental findings.
Full Text: PDF
References
- J. Parka, K. Sielezin, "0.3-10.0 THz spectra for chosen liquid crystal molecules - simulation and physical properties", Mol. Cryst. Liq. Cryst., 657, 66 (2017). CrossRef
- K. Sielezin, R. Kowerdziej, J. Parka, "Simulations of some physical parameters of homologous series of nBT and nCHBT at 0.3-20.0 THz", Liq. Cryst., 1563918, 1 (2018). CrossRef
- Z. Chen, L. Jiang, H. Ma, "Calculation on frequency and temperature properties of birefringence of nematic liquid crystal 5CB in terahertz band", Chem. Phys. Lett., 645, 205 (2016). CrossRef
- Z. Chen, Y. Jiang, L. Jiang, H. Ma, "Terahertz absorption spectra and potential energy distribution of liquid crystals", Spectrochim. Acta A Mol. Biomol. Spectrosc. 153, 741 (2016). CrossRef
- Z. Chen, Y. Jiang, L. Jiang, H. Ma, "Molecular vibration mode assignment of nematic liquid crystal 5CB on Terahertz spectra", Liq. Cryst., 42(7), 947 (2015). CrossRef
- N. Vieweg, M. A. Celik, S. Zakel, V. Gupta, G. Frenking, M. Koch, "Terahertz Absorption of Nematic Liquid Crystals", J. Infrared Milli Terahertz Waves 35, 478 (2014). CrossRef
- P. Friebel, D. R. Galimberti, M. Savoini, L. Cattaneo, "Unveiling Low THz Dynamics of Liquid Crystals: Identification of Intermolecular Interaction among Intramolecular Modes", J. Phys. Chem. B 128, 596 (2024). CrossRef
- Molecular Modelling Software SCIGRESS, Fujitsu Limited, Tokyo, Japan, (2016), DirectLink
- R. Kowerdziej, L. Jaroszewicz, M. Olifierczuk, J. Parka, "Experimental study on terahertz metamaterial embedded in nematic liquid crystal", Appl. Phys. Lett., 106(9), 092905 (2015). CrossRef
- M. Olifierczuk, R. Kowerdziej, L. Jaroszewicz, M. Czerwinski, J. Parka, "Numerical analysis of THz metamaterial with high birefringence liquid crystal", Liquid Crystals, 39(6), 739 (2012). CrossRef
- R. Kowerdziej, T. Stańczyk, J. Parka, "Electromagnetic simulations of tunable terahertz metamaterial infiltrated with highly birefringent nematic liquid crystal", Liquid Crystals, 42(4), 430 (2015). CrossRef
- J. Parka, S. Kłosowicz, "16th Topical Meeting on the Optics of Liquid Crystals", Phot. Lett. Poland, 7(4), 90 (2015). CrossRef
- U. Chodorow, J. Parka, O. Chojnowska, "Liquid Crystal Materials in THz Technologies", Phot. Lett. Poland, 4(3), 112 (2015). CrossRef
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Karol Sielezin, Rafał Kowerdziej, Urszula Chodorow, Marek Olifierczuk, Janusz Parka

This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).