عنوان المقالة:Non-symmetrical bent-core homologous series bearing 1,2,4-oxadiazole core with a cholesterol terminal arm: Synthesis, characterization and their liquid crystalline properties Non-symmetrical bent-core homologous series bearing 1, 2, 4-oxadiazole core with a cholesterol terminal arm: Synthesis, characterization and their liquid crystalline properties
غسان قيس علي | Ghassan Qays Ali | 4866
- نوع النشر
- مجلة علمية
- المؤلفون بالعربي
- Ghassan Q. Ali , Ivan Hameed R. Tomi
- المؤلفون بالإنجليزي
- Ghassan Q Ali, Ivan Hameed R Tomi
- الملخص العربي
- Nonsymmetric 1,2,4-oxadiazole derivatives with cholesteryl and alkoxy chain as end moieties exhibiting monotropic liquid crystalline behavior have been reported. The molecular structures have been confirmed by elemental analysis and spectroscopic studies. Differential scanning calorimetry (DSC) studies revealed multiple phase transitions and polarized optical microscopy (POM) investigations confirmed smectic A (SmA) and chiral nematic (N ∗) phases. The importance of alkyl chain length in mesophase formation is discussed. A comparison with other reported mesogenic materials possessing similar molecular structures is also discussed.
- الملخص الانجليزي
- Nonsymmetric 1,2,4-oxadiazole derivatives with cholesteryl and alkoxy chain as end moieties exhibiting monotropic liquid crystalline behavior have been reported. The molecular structures have been confirmed by elemental analysis and spectroscopic studies. Differential scanning calorimetry (DSC) studies revealed multiple phase transitions and polarized optical microscopy (POM) investigations confirmed smectic A (SmA) and chiral nematic (N*) phases. The importance of alkyl chain length in mesophase formation is discussed. A comparison with other reported mesogenic materials possessing similar molecular structures is also discussed.
- تاريخ النشر
- 05/06/2022
- الناشر
- Elsevier/ Journal of Molecular Structure
- رقم المجلد
- 1257
- رقم العدد
- ISSN/ISBN
- 0022-2860/ 1872-8014
- رابط DOI
- Doi.org/10.1016/j.molstruc.2022.132610
- الصفحات
- 132610
- رابط خارجي
- https://doi.org/10.1016/j.molstruc.2022.132610
- الكلمات المفتاحية
- 1,2,4- oxadiazole, Cholesteric phase, Liquid crystalline, Ester, mesogens