University of Kashan Iranian Journal of Mathematical Chemistry 2228-6489 11 4 2020 12 01 Odd-Even Effect Observed in the Electro-Optical Properties of the Homologous Series of HnCBP Liquid Crystal Studied under the Impact of the Electric Field: A Theoretical Approach 239 254 111288 10.22052/ijmc.2020.232036.1503 EN Narinder Kumar Department of Physics, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow (U.P.) 226025 INDIA Pawan Singh Department of Physics, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow (U.P.) 226025 INDIA Khem Thapa Department of Physics, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow (U.P.) 226025 INDIA Devesh Kumar Department of Physics, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow (U.P.) 226025 INDIA Email:dkclcre@yahoo.com Journal Article 2020 05 19 The liquid crystal (LC) 4-4′-disubstituted biphenyls (HnCBP) of the general line formula HO-(CnH2n+1)-O-C6H4-C6H4-CN (n=1-12) shows the odd-even effect under the applied electric field. The odd-even effects are observed in the HOMO-LUMO gap, birefringence, order parameter, and dipole moment. The odd carbon atom number of alkyl chain shows HOMO-LUMO gap, birefringence and order parameter in the upward direction and even carbon atom number of alkyl chain shows in the downward direction; however the dipole moment exhibits a shift of even carbon number of alkyl chain in the upward direction and odd carbon number of alkyl chain in the downward direction. https://ijmc.kashanu.ac.ir/article_111288_6b5bf4e5913ac3f5e724b666dfd53e0a.pdf