Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety
Calamitic liquid crystalline dimer containing azobenzene moiety and a decyloxy biphenyl linked by flexible spacers {4-[7-(4′-decyloxy-biphenyl-4-yloxy)-alkyloxy]-phenyl}-(4-decyl-phenyl)-diazene has been synthesized and characterized by spectroscopic methods. The transition temperatures and phase be...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/939406 |
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| author | S. Sandy Subala B. Syama Sundar S. Sreehari Sastry |
| author_facet | S. Sandy Subala B. Syama Sundar S. Sreehari Sastry |
| author_sort | S. Sandy Subala |
| collection | DOAJ |
| description | Calamitic liquid crystalline dimer containing azobenzene moiety and a decyloxy biphenyl linked by flexible spacers {4-[7-(4′-decyloxy-biphenyl-4-yloxy)-alkyloxy]-phenyl}-(4-decyl-phenyl)-diazene has been synthesized and characterized by spectroscopic methods. The transition temperatures and phase behaviours were studied by Differential Scanning Calorimeter (DSC) and Polarizing Optical Microscope (POM). The synthesized compounds exhibited enantiotropic liquid crystal phase with higher spacer display nematic and smectic C phases while lower spacer shows nematic and smectic A phases. |
| format | Article |
| id | doaj-art-90ebd32bcdac40daa98713997f921dbc |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-90ebd32bcdac40daa98713997f921dbc2025-02-03T01:24:26ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/939406939406Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene MoietyS. Sandy Subala0B. Syama Sundar1S. Sreehari Sastry2Department of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522510, IndiaDepartment of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522510, IndiaDepartment of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522510, IndiaCalamitic liquid crystalline dimer containing azobenzene moiety and a decyloxy biphenyl linked by flexible spacers {4-[7-(4′-decyloxy-biphenyl-4-yloxy)-alkyloxy]-phenyl}-(4-decyl-phenyl)-diazene has been synthesized and characterized by spectroscopic methods. The transition temperatures and phase behaviours were studied by Differential Scanning Calorimeter (DSC) and Polarizing Optical Microscope (POM). The synthesized compounds exhibited enantiotropic liquid crystal phase with higher spacer display nematic and smectic C phases while lower spacer shows nematic and smectic A phases.http://dx.doi.org/10.1155/2013/939406 |
| spellingShingle | S. Sandy Subala B. Syama Sundar S. Sreehari Sastry Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety Journal of Chemistry |
| title | Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety |
| title_full | Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety |
| title_fullStr | Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety |
| title_full_unstemmed | Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety |
| title_short | Synthesis and Characterization of Nonsymmetric Liquid Crystal Dimer Containing Biphenyl and Azobenzene Moiety |
| title_sort | synthesis and characterization of nonsymmetric liquid crystal dimer containing biphenyl and azobenzene moiety |
| url | http://dx.doi.org/10.1155/2013/939406 |
| work_keys_str_mv | AT ssandysubala synthesisandcharacterizationofnonsymmetricliquidcrystaldimercontainingbiphenylandazobenzenemoiety AT bsyamasundar synthesisandcharacterizationofnonsymmetricliquidcrystaldimercontainingbiphenylandazobenzenemoiety AT ssreeharisastry synthesisandcharacterizationofnonsymmetricliquidcrystaldimercontainingbiphenylandazobenzenemoiety |