X-Ray Diffraction and Thermographic Study of Mesomorphic 4-Acylphenyl 4'-Nonyloxybenzoate CH3C(O)C6H4-OC(O)-C6H4-OC9H19

Kuzmina L. G.; Konstantinov I. I.; Kalle P.; Navasardyan M. A.

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X-Ray Diffraction and Thermographic Study of Mesomorphic 4-Acylphenyl 4'-Nonyloxybenzoate CH3C(O)C6H4-OC(O)-C6H4-OC9H19

机译：X射线衍射和热成像研究的偏离4-酰基苯基4'-壬氧基苯甲酸酯CH3C（O）C6H4-OC（O）-C6H4-OC9H19

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The structure and thermal properties of mesomorphic phenyl benzoate CH3-C(O)-C6H4-OC(O)-C6H4-OC9H19 (I) were studied by differential scanning calorimetry (DSC) and X-ray diffraction. The crystal packing of I is typical of mesomorphic crystals. It consists of alternating loosely packed aliphatic and closely packed aromatic regions, the latter regions being stabilized by weak directional C-H center dot center dot center dot pi interactions. According to the DSC data, compound I does not form a mesophase upon melting. The latter was observed only upon cooling of the isotropic melt. The lack of enantiotropic mesomorphism in the crystal of I is attributed to the fact that C-H center dot center dot center dot pi non-covalent interactions, which could ensure the structuring of the melt, are broken at the melting point.

机译：通过差示扫描量热法（DSC）和X射线衍射研究了苯甲酸苯基苯基苯基苯甲酸苯基苯基-C（O）-C6 -4-oc（o）-C6H4-OC9H19（I）的结构和热性质。我的晶体填料是典型的中晶晶体。它包括交替松散地包装的脂族和紧密堆积的芳族区域，后者区域被弱定向C-H中心点中心点中心点中心点PI相互作用稳定。根据DSC数据，化合物在熔化时不形成中间相。只有在冷却各向同性熔体时才观察后者。 I的晶体中缺乏对脱嗜肝的偏振术归因于C-H中心点中心点中心点PI非共价相互作用，这可以确保熔化的结构，在熔点处破裂。

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《Crystallography reports》 |2020年第3期|共5页
作者
Kuzmina L. G.; Konstantinov I. I.; Kalle P.; Navasardyan M. A.;
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Russian Acad Sci Kurnakov Inst Gen &

Inorgan Chem Moscow 119991 Russia;

Russian Acad Sci Topchiev Inst Petrochem Synth Moscow 119991 Russia;

Russian Acad Sci Kurnakov Inst Gen &

Inorgan Chem Moscow 119991 Russia;

Russian Acad Sci Kurnakov Inst Gen &

Inorgan Chem Moscow 119991 Russia;

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正文语种 eng
中图分类晶体学;
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机译：X射线衍射和热成像研究的偏离4-酰基苯基4'-壬氧基苯甲酸酯CH3C（O）C6H4-OC（O）-C6H4-OC9H19
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X-Ray Diffraction and Thermographic Study of Mesomorphic 4-Acylphenyl 4'-Nonyloxybenzoate CH3C(O)C6H4-OC(O)-C6H4-OC9H19

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