Synthesis and Evaluation of a Novel Liquid Crystalline Homologous Series: α-4-[4'-n-Alkoxy Cinnamoyloxy] Benzoyl-β-3',4'-Dimethoxy Phenyl Ethylenes

D. M. SUTHAR; A. A. DOSHI; A. V. DOSHI

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Synthesis and Evaluation of a Novel Liquid Crystalline Homologous Series: α-4-[4'-n-Alkoxy Cinnamoyloxy] Benzoyl-β-3',4'-Dimethoxy Phenyl Ethylenes

机译：新型液晶同源序列：α-4-[4'-n-烷氧基肉桂酰氧基]苯甲酰基-β-3“，4”-二甲氧基苯基乙烯的合成与评价

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The synthesis and evaluation of a novel series of 12 homologues is presented. Enan-tiotropic nematogenic mesomorphism is exhibited from the pentyl to hexadecyl homologues. The other homologues are not liquid crystalline. Smectic mesomorphism is absent in all homologues. Transition temperatures were determined using an optical polarizing microscope equipped with a heating stage. The transition curves of a phase diagram behave in a normal manner. An odd-even effect is observed for the N-I transition curve. The textures of the nematic phase are of the threaded or Schlieren type. Mesomorphic-isotropic transition temperatures range from 152°C to 178°C. The nematogenic phase length varies between 24°C and 51°C. The nematic thermal stability is 163.1° C. Thus, the novel homologous series is entirely nematogenic without the exhibition of smectogenic character, and is of a middle ordered melting type. Analytical and spectral data support the molecular structures. Liquid crystal (LC) properties of the novel series are compared with structurally similar homologous series.

机译：介绍了一个新颖的12个同源物系列的合成和评价。从戊基到十六烷基同系物表现出促亲生性的生线性同构。其他同系物不是液晶的。在所有同源物中都没有近晶同构。使用配备有加热台的光学偏振显微镜确定转变温度。相图的过渡曲线行为正常。对于N-1过渡曲线观察到奇偶效应。向列相的织构为螺纹或Schlieren类型。各向同性的各向同性转变温度范围为152°C至178°C。产线相的长度在24°C至51°C之间变化。向列热稳定性为163.1℃。因此，新的同源序列完全是致线虫性的，没有表现出菌层性，并且是中等顺序的熔融类型。分析和光谱数据支持分子结构。将新系列的液晶（LC）特性与结构相似的同源系列进行比较。

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《Molecular crystals and liquid crystals》 |2013年第null期|共8页
作者
D. M. SUTHAR; A. A. DOSHI; A. V. DOSHI;
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正文语种 eng
中图分类 54.9;
关键词
Liquid crystal; mesomorphism; nematic; smectic; thermotropic;

机译：液晶;同晶;向列;近晶;热致;

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1. Synthesis and Evaluation of a Novel Liquid Crystalline Homologous Series: α-4-[4'-n-Alkoxy Cinnamoyloxy] Benzoyl-β-3",4"-Dimethoxy Phenyl Ethylenes [J] . D. M. SUTHAR, A. A. DOSHI, A. V. DOSHI Molecular crystals and liquid crystals . 2013,第Null期

机译：新型液晶同源序列：α-4-[4'-n-烷氧基肉桂酰氧基]苯甲酰基-β-3“，4”-二甲氧基苯基乙烯的合成与评价
2. Ethylene Derivatives of Liquid Crystalline Properties : Homologous Series : ?±-4-[-4a??-n-Alkoxy Cinnamoyloxy] benzoyl ?2-phenyl ethylenes [J] . Chauhan H. N., Doshi A.V. Der Pharma Chemica: journal for medicinal chemistry, pharmaceutical chemistry and computational chemistry . 2012,第3期

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Synthesis and Evaluation of a Novel Liquid Crystalline Homologous Series: α-4-[4'-n-Alkoxy Cinnamoyloxy] Benzoyl-β-3',4'-Dimethoxy Phenyl Ethylenes

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