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Preparation and Structural Properties of Liquid Crystalline Materials and its Transition Metals Complexes
Corresponding Author(s) : Alaa K.H. Al-Khalaf
Asian Journal of Chemistry,
Vol. 31 No. 2 (2019): Vol. 31 No. 2
Abstract
Two ligands have been synthesized from hydrazine and benzidine derivatives. These ligands were mixed with metal ions such as [Cd(II) and Zn(II)] to synthesize liquid crystalline complexes. By using polarizing optical microscopy, these compounds have a liquid crystalline behaviour. The complexes were characterized by physical and chemical techniques such as spectroscopic (UV-visible, FT-IR, X-ray powder diffraction) and molar conductivity. The results show enantiotropy nematic phase (marble and schleiren textures through heating and cooling, respectively) for all compounds. Compounds have polycrystalline amorphous structure with square planar geometry.
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- J.-G. An, S. Hina, Y. Yang, M. Xue and Y. Liu, Rev. Adv. Mater. Sci.., 44, 398 (2016).
- D. Yang and W. Shin, Fundamentals of Liquid Crystal Devices, John Wiley, pp. 1-37 (2006).
- C. Liliana, C. Csunderlik and C. Otilia, J. Chem. Bull. Politehnic. Univ. Timisoara, 50, 1 (2005).
- J.S.J. Hargreaves, Catal. Struct. React., 2, 33 (2016); https://doi.org/10.1080/2055074X.2016.1252548.
- M. Bal, G. Ceyhan, B. Avar, M. Köse, A. Kayraldiz and M. Kurtoglu, Turk. J. Chem., 38, 222 (2014); https://doi.org/10.3906/kim-1306-28.
- M. Marcos, P. Romero, J.L. Serrano, C. Bueno, J.A. Cabeza and L.A. Oro, Mol. Cryst. Liq. Cryst. Incorp. Nonlinear Opt., 167, 123 (1988): https://doi.org/10.1080/00268948908037168.
- K.K. Abid and S.M. Al-barody, J. Liq. Cryst., 41, 1303 (2014); https://doi.org/10.1080/02678292.2014.919670.
- K. Sanyucta, J. World Medical Res., 3, 1 (2014).
- M. Riyadh, I. Enaam, A. Hasan, and J. Mohamad, J. Scientific World, Article ID 289805 (2013); https://doi.org/10.1155/2013/289805.
- K. Abdali, M.Sc. Thesis, College of Science, Babylon University, Babylon, Iraq (2010).
- A.K.H. Al-Khalaf, M.Sc. Thesis, College of Science, Babylon University, Babylon, Iraq (2010).
- A.K.H. Al-Khalaf, Ph.D. Thesis, School of Chemistry, Cardiff University, U.K. (2012).
- K. Smith, A.K.H. Al-Khalaf, G. El-Hiti and S. Pattisson, Green Chem., 14, 1103 (2012); https://doi.org/10.1039/c2gc16443d.
- A.K.H. Al-Khalaf, S.M. Haddawi and O.M. Yasser, Iraqi National J. Chem., 24, 475 (2006).
- A.O. Mousa, A.K.H. Al-Khalaf, S.J. Abdul-Razzaq and Q.M. Sh. AlJomali, J. Al-Qadisiyah Univ., 4, 215 (2015).
- A.O. Mousa, A.K.H. Al-Khalaf and M.A. Zghair, J. Babylon Univ. Pure Appl. Sci., 3, 24 (2016).
- P.M. Krishna, B.S. Shankara and N.S. Reddy, Int. J. Inorg. Chem., Article ID 741269 (2013); https://doi.org/10.1155/2013/741269.
- S. Chandra and P. Pipil, J. Open Inorg. Chem., 4, 30 (2014); https://doi.org/10.4236/ojic.2014.42005.
- M.A.E.M. Mohamed, O.B. Ibrahim and M.S. Refat, Can. Chem. Transac., 2, 108 (2014).
References
J.-G. An, S. Hina, Y. Yang, M. Xue and Y. Liu, Rev. Adv. Mater. Sci.., 44, 398 (2016).
D. Yang and W. Shin, Fundamentals of Liquid Crystal Devices, John Wiley, pp. 1-37 (2006).
C. Liliana, C. Csunderlik and C. Otilia, J. Chem. Bull. Politehnic. Univ. Timisoara, 50, 1 (2005).
J.S.J. Hargreaves, Catal. Struct. React., 2, 33 (2016); https://doi.org/10.1080/2055074X.2016.1252548.
M. Bal, G. Ceyhan, B. Avar, M. Köse, A. Kayraldiz and M. Kurtoglu, Turk. J. Chem., 38, 222 (2014); https://doi.org/10.3906/kim-1306-28.
M. Marcos, P. Romero, J.L. Serrano, C. Bueno, J.A. Cabeza and L.A. Oro, Mol. Cryst. Liq. Cryst. Incorp. Nonlinear Opt., 167, 123 (1988): https://doi.org/10.1080/00268948908037168.
K.K. Abid and S.M. Al-barody, J. Liq. Cryst., 41, 1303 (2014); https://doi.org/10.1080/02678292.2014.919670.
K. Sanyucta, J. World Medical Res., 3, 1 (2014).
M. Riyadh, I. Enaam, A. Hasan, and J. Mohamad, J. Scientific World, Article ID 289805 (2013); https://doi.org/10.1155/2013/289805.
K. Abdali, M.Sc. Thesis, College of Science, Babylon University, Babylon, Iraq (2010).
A.K.H. Al-Khalaf, M.Sc. Thesis, College of Science, Babylon University, Babylon, Iraq (2010).
A.K.H. Al-Khalaf, Ph.D. Thesis, School of Chemistry, Cardiff University, U.K. (2012).
K. Smith, A.K.H. Al-Khalaf, G. El-Hiti and S. Pattisson, Green Chem., 14, 1103 (2012); https://doi.org/10.1039/c2gc16443d.
A.K.H. Al-Khalaf, S.M. Haddawi and O.M. Yasser, Iraqi National J. Chem., 24, 475 (2006).
A.O. Mousa, A.K.H. Al-Khalaf, S.J. Abdul-Razzaq and Q.M. Sh. AlJomali, J. Al-Qadisiyah Univ., 4, 215 (2015).
A.O. Mousa, A.K.H. Al-Khalaf and M.A. Zghair, J. Babylon Univ. Pure Appl. Sci., 3, 24 (2016).
P.M. Krishna, B.S. Shankara and N.S. Reddy, Int. J. Inorg. Chem., Article ID 741269 (2013); https://doi.org/10.1155/2013/741269.
S. Chandra and P. Pipil, J. Open Inorg. Chem., 4, 30 (2014); https://doi.org/10.4236/ojic.2014.42005.
M.A.E.M. Mohamed, O.B. Ibrahim and M.S. Refat, Can. Chem. Transac., 2, 108 (2014).