Preparation and characterization of Schiff base and its complex with Cu(II) and study of their liquid crystalline properties.
DOI:
https://doi.org/10.56714/bjrs.49.2.3Keywords:
Schiff base, liquid crystals, Cu (II) complexesAbstract
The research includes the preparation of ligand E-H, and it was identified by spectroscopic methods Infra Red IR, Nuclear magnatic Reasonance NMR, Mass spectra· It was also prepared from the ligand a complexes with copper (11) and characterized by Infra Red spectra. Central metals ions and Schif base coordinated via O and N donor sites which was observed from IR spectra. The liquid crystal characteristics of the ligand was studied using polarized optical microscope POM and the ligand is a liquid crystal by showed nematic phase only, while no liquid crystal phase was detected in the prepared complex, and it disintegrated at 250°C.
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References
G.W. Gray, PA. Windsor, Liq. Cryst, Plastic Cryst., Ellis Horwood Ltd: Chichester; Halsted Press:
New York, London, Ch 4, (1974). B.T. Thaker, J.B Kanojj, Liq. Cryst 38(8), 1035 (2011).
Doi: doi.org/10.1080/02678292.2011.594525
M. L. Chauhan, R. N. Pandya, A. V. Doshi, Mol. Cryst. Liq. Cryst. 548, 228 (2011). Doi: https://doi.org/10.1080/15421406.2011.591664
A.A Doshi, B.C Chauhan, Mol Cryst Liq Cryst. 606, 66 (2015). Doi: https://doi.org/10.1080/15421406.2014.915630
K.Youngju, L. Mongryong, S.W. Hyuck, S. Kigook, Liq. Cryst. 45, 757 (2018). Doi; https://doi.org/10.1080/02678292.2017.1382582
A.Ranjkesh, M.H.Parast, O. Strzezysz, M.S. Zakerhamidi, T. H.Yoon, RSC Adv 8, 22835 (2018). Doi: https://doi.org/10.1039/C8RA03701A
C.R. Bhattacharjee, C. Datta,, G. Das, P. Mondal, Liq. Cryst 39(3), 373 (2012). Doi: https://doi.org/10.1080/02678292.2011.652199
C.R. Bhattacharjee, G. Das, D.D Purkayastha, P. Kanoo, P. Mondal, J. Coord. Chem. 64(15), 2746 (2011). Doi: https://doi.org/10.1080/00958972.2011.606461
K.J. Nakum, K.D. Katariya, R.N. Jadeja, Mol. Cryst. Liq. Cryst. 708(1), 1 (2020). Doi: https://doi.org/10.1080/15421406.2020.1804285.
K. Najati, Z. Rezvani , New J. Chem 27, 1665 (2003). Doi: https://doi.org/10.1039/B305278H
U.J. Al-Hamdani, N.L.Shihabaldain, D.S. Al-Mayah, A.M. Jassem, Mol. Cryst. Liq. Cryst. 725, 13 (2021). Doi: https://doi.org/10.1080/15421406.2021.1910898
U.J. Al-Hamdani, H.A. Abdulwahhab, K.A. Hussein, Liq. Cryst. 49(14), 1 (2022). Doi: https://doi.org/10.1080/02678292.2022.2091803
U.J. Al-Hamdani, H.S. Abbo, A.A Al-Jaber,S.J.J. Titinchi, Liq. Cryst. 47, 2257 (2020). Doi: https://doi.org/10.1080/02678292.2020.1766134
U.J. Al-Hamdani, A.M. Jassem, A.M. Dhumad, S.A. Al-Shlshat, Liq. Cryst. 48(15), 2164 (2021). Doi: https://doi.org/10.1080/02678292.2021.1934742
S.K. Singh, M.K. Singh, H.K. Singh, B. Singh, Mol. Cryst. Liq. Cryst. 624(1), 77 (2016).
Doi: https://doi.org/10.1080/15421406.2015.1044196
G.Y. Yeap, B.T. Heng, M. Tanabe, D. Takeuchi, Mol. Cryst. Liq. Cryst. 552, 217 (2012). Doi: https://doi.org/10.1080/15421406.2011.619097
G.W.Gray, Molecular and Properties of Liquid Crystals, 1st Ed., Academic press, England, (1962).
J.W.Goodby, P.J.Collings, Introduction to liquid crystals: Chemistry and Physics, 2nd Ed, Taylor & Francis, London and New York, (2019).
V.Chemi, Texture of Liquid Crystals, Weinheim, New York, (1978).
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