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Liquid Crystals Volume 36, 2009 - Issue 9
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Original Articles

Heterocyclic benzothiazole-based liquid crystals: synthesis and mesomorphic properties

Sie-Tiong Ha Faculty of Engineering & Science, Universiti Tunku Abdul Rahman, Jalan Genting Klang, Setapak, 53300, Kuala Lumpur, Malaysia; Faculty of Science, Engineering & Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, MalaysiaCorrespondence[email protected] [email protected]
,
Teck-Ming Koh Faculty of Engineering & Science, Universiti Tunku Abdul Rahman, Jalan Genting Klang, Setapak, 53300, Kuala Lumpur, Malaysia
,
Hong-Cheu Lin Department of Materials Science & Engineering, National Chiao Tung Universiti, 1001 Ta-Hsueh Road, Hsinchu, 300, Taiwan, ROC
,
Guan-Yeow Yeap Liquid Crystal Research Laboratory, School of Chemical Sciences, University Sains Malaysia, 11800, Minden, Penang, Malaysia
,
Yip-Foo Win Faculty of Science, Engineering & Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, Malaysia
,
Siew-Teng Ong Faculty of Engineering & Science, Universiti Tunku Abdul Rahman, Jalan Genting Klang, Setapak, 53300, Kuala Lumpur, Malaysia; Faculty of Science, Engineering & Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, Malaysia
,
Yasodha Sivasothy Chemistry Department, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
&
Lay-Khoon Ong Faculty of Engineering & Science, Universiti Tunku Abdul Rahman, Jalan Genting Klang, Setapak, 53300, Kuala Lumpur, Malaysia
 show all
Pages 917-925 | Received 22 Apr 2009, Accepted 19 Jun 2009, Published online: 22 Sep 2009

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Uhood J. Al-Hamdani, Hayder A. Abdulwahhab & Kawkab A. Hussein. (2022) Effects of terminal substituents on mesomorphic properties of Schiff base – ester mesogens and DFT calculations. Liquid Crystals 49:14, pages 1998-2007.
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Uhood J. Al-Hamdani, Hanna S. Abbo, Ayat A. Fadhl & Salam J. J. Titinchi. (2022) Chloro-benzothiazole Schiff base ester liquid crystals: synthesis and mesomorphic ‎investigation. Liquid Crystals 49:13, pages 1866-1877.
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K.-L. Foo, S.-T. Ha & G.-Y. Yeap. (2022) Synthesis and phase transition behavior of calamitic liquid crystals containing heterocyclic core and lateral ethoxy substituent. Phase Transitions 95:2, pages 178-192.
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Uhood J Al-Hamdani, Ahmed M. Jassem, Adil M. Dhumad & Saja a Al-Shlshat. (2021) Synthesis, mesomorphic properties, and theoretical study of benzothiazole-aromatic molecules with ester- and azomethine-linking groups. Liquid Crystals 48:15, pages 2164-2177.
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Kiran J. Nakum, Kanu D. Katariya, Vivek K. Gupta & Rajendrasinh N. Jadeja. (2021) Synthesis, characterization, crystal structure and mesomorphic behavior of thiophene based homologous series. Phase Transitions 94:12, pages 970-985.
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Lingchao Mo, Jian Li, Zhaoyi Che, Yilin Cao, Zhongwei An & Xiaozhe Yang. (2020) New negative dielectric anisotropy liquid crystals based on benzofuran core. Liquid Crystals 47:14-15, pages 2313-2322.
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Uhood J. Al-Hamdani, Hanna S. Abbo, Afrah A. Al-Jaber & Salam J. J. Titinchi. (2020) New azo-benzothiazole based liquid crystals: synthesis and study of the effect of lateral ‎substituents on their liquid crystalline behaviour. Liquid Crystals 47:14-15, pages 2257-2267.
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Guang Hu, Stuart P. Kitney, Weixiao Bao, William Harrison & Brian Lambert. (2020) Novel heterocyclic liquid crystalline semiconductors with polymorphism. Phase Transitions 93:12, pages 1143-1156.
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Priyanka Kanth, Hemant Kumar Singh, Vijay Kumar, Sachin Kumar Singh, D. S. Shankar Rao, S. Krishna Prasad & Bachcha Singh. (2020) Effect of alkoxy chain density on the mesogenic properties of aroylhydrazone based liquid crystals: synthesis, characterisation, photophysical and gelation behaviour. Liquid Crystals 47:12, pages 1750-1761.
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K.-L. Foo, S.-T. Ha, G.-Y. Yeap & H.-C. Lin. (2019) Synthesis and mesomorphic behaviors of a series of heterocyclic pyridine-imine-ester based liquid crystals. Phase Transitions 92:10, pages 916-930.
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K.-L. Foo, S.-T. Ha, G.-Y. Yeap & H.-C. Lin. (2019) Mesomorphic behaviors of a series of heterocyclic benzothiazole-imine-ester-based liquid crystals. Phase Transitions 92:1, pages 87-99.
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Lay-Khoon Ong, Sie-Tiong Ha, Guan-Yeow Yeap & Hong-Cheu Lin. (2018) Heterocyclic pyridine-based liquid crystals: synthesis and mesomorphic properties. Liquid Crystals 45:11, pages 1574-1584.
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Nur Syafiqah Farhanah Dzulkharnien, Noordini M. Salleh, Rosiyah Yahya & Md. Rabiul Karim. (2017) Synthesis of imine-ester-linked benzothiazole mesogen containing liquid crystalline monomers with different terminal substituents. Soft Materials 15:4, pages 292-301.
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Chi-Kien Seou, Sie-Tiong Ha, Siew-Ling Lee, Guan-Yeow Yeap, Chien-Min Lin, Hong-Cheu Lin & Yip-Foo Win. (2017) Synthesis and phase transition behaviours of laterally substituted liquid crystals containing methylhydroquinone: emerging of smectic C phase for higher homologues. Phase Transitions 90:5, pages 449-464.
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Xiaolian Li, Zongying Zhang & Liuya. (2017) Smectic liquid crystals comprising triazole banana shaped achiral molecules: Synthesis and characterization. Molecular Crystals and Liquid Crystals 647:1, pages 395-404.
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Kok-Leei Foo, Chi-Kien Seou, Sie-Tiong Ha, Siew-Ling Lee & Guan-Yeow Yeap. (2017) Synthesis and phase-transition behaviors of new symmetrical dimer liquid crystals containing benzothiazole unit. Phase Transitions 90:2, pages 158-166.
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Yong-Wei Cheryl Lim, Sie-Tiong Ha, Guan-Yeow Yeap & S. Sreehari Sastry. (2017) Synthesis and mesomorphic properties of new heterocyclic liquid crystals with Central Ester–Chalcone linkages. Journal of Taibah University for Science 11:1, pages 133-140.
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Boon-Teck Heng, Guan-Yeow Yeap, Wan Ahmad Kamil Mahmood, Teruo Shinomiya, Nozomi Uchida & Masato M. Ito. (2015) New heterocyclic metallomesogens: synthesis, mesomorphic and thermal behaviours of Cu(II) complexes with 1,2,3-triazole-based Schiff bases ligands. Liquid Crystals 42:2, pages 204-215.
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Kok-Leei Foo, Sie-Tiong Ha, Yip-Foo Win, Guan-Yeow Yeap, Hong-Cheu Lin & S. Sreehari Sastry. (2014) Synthesis and mesomorphic behaviours of a homologous series of 2-(4-alkyloxybenzylidenamino)benzothiazoles. Liquid Crystals 41:11, pages 1516-1525.
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Sie-Tiong Ha, Teck-Ming Koh, Yip-Foo Win & S. Sreehari Sastry. (2013) Phase transition behaviours of calamitic liquid crystals comprising phenylbenzothiazole core. Liquid Crystals 40:8, pages 1016-1023.
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M. J. Niknam Jahromi & Jui-Hsiang Liu. (2013) Self-Assembly of Hydrogen Bonding Assisted Highly Conjugated Inclusion Complexes Threaded with β-Cyclodextrins. Soft Materials 11:3, pages 281-287.
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B.T. Thaker, B.S. Patel, Y.T. Dhimmar, N.J. Chothani, D.B. Solanki, Neeraj Patel, K.B. Patel & U. Makawana. (2013) Mesomorphic studies of novel azomesogens having a benzothiazole core: Synthesis and characterisation. Liquid Crystals 40:2, pages 237-248.
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Guan-Yeow Yeap, Elham A. Al-Taifi, Chin-Hin Ong, Wan Ahmad Kamil Mahmood, Daisuke Takeuchi & Masato M. Ito. (2012) Synthesis and phase transition studies on non-symmetric liquid crystal dimers: N-(4-(n-(4-(benzothiazol-2-yl)phenoxy)alkyloxy)-benzylidene)-4-chloroanilines. Phase Transitions 85:6, pages 483-496.
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Guan-Yeow Yeap, Arwa Alshargabi, MasatoM. Ito, Wan Ahmad Kamil Mahmood & Daisuke Takeuchi. (2012) Synthesis and Anisotropic Properties of Azo-Bridged Benzothiazole-Phenyl Esters. Molecular Crystals and Liquid Crystals 557:1, pages 126-133.
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Agnieszka Iwan, Mariola Siwy, Henryk Janeczek & Patrice Rannou. (2012) Synthesis and mesomorphism of 2,5-bis(3,4-bis(n-alkoxy)phenyl)thiazolo[5,4-d]thiazole tetracatenar liquid crystals. Phase Transitions 85:4, pages 297-308.
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Sie-Tiong Ha, Teck-Ming Koh, Guan-Yeow Yeap, Hong-Cheu Lin, Siew-Ling Lee, Yip-Foo Win & Siew-Teng Ong. (2010) Synthesis and Mesomorphic Properties of 6-Methoxy- and 6-Ethoxy-2-(2-Hydroxy-4-Alkanoyloxybenzylidenamino)Benzothiazoles. Molecular Crystals and Liquid Crystals 528:1, pages 10-22.
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