Synthesis, characterization and study of liquid crystal properties of new homologous chalcone series
Synthesis, characterization and study of liquid crystal properties of new homologous chalcone series
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DOI：
10.1080/15421406.2016.1217707
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发表时间：
2016-10
影响因子：
0.7
通讯作者：
B. Jain;R. Patel
中科院分区：
文献类型：
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作者：
B. Jain;R. Patel
合成了一个新的具有两个环的查耳酮基衍生物（3/-（4/-癸氧基）苯基-1-（4-烷氧基）苯基）丙-2-烯-1-酮），并通过元素分析和标准光谱方法进行了表征。在该系列中，低分子（C_4和C_5）仅表现出各向异性的近晶型中间相，而中、高分子则表现出各向异性的近晶型和近晶型中间相。从C4同系物开始的近晶中间相和从C6同系物开始的近晶中间相（近晶-A型织构）是互变的，并持续到合成的最后一个成员。将本系列的介晶性与其它两个结构相似系列的介晶性进行了比较，研究了Meta和帕拉的变化对介晶性的影响。
GRAPHICAL ABSTRACT ABSTRACT One new mesogenic homologous series of chalconyl derivative with two ring (3/-(4/- (decyloxy) phenyl-1-(4-(alkoxy) phenyl) prop-2-en-1-one) has been synthesized and characterized by a combination of elemental analysis and standard spectroscopic methods. In the series, the lower members (C4 and C5) exhibit only enantiotropic nematic mesophase but middle and higher members exhibit enantiotropic nematic as well as smectic mesophase. The nematic mesophase commence from C4 homologue and smectic mesophase (smectic-A type texture) commence from C6 homologue as enantiotropic and persists up to the last member synthesized. The mesomorphic properties of present series were compared with other two structurally similar series to study the effects of change of meta and para position on the mesomorphism.