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具有手性侧基的新型三嗪基π共轭大分子的合成及液晶性能

Synthesis and liquid crystalline properties of new triazine-based π-conjugated macromolecules with chiral side groups.

作者信息

Akkurt Nihat, Al-Jumaili Mohammed Hadi Ali, Ocak Hale, Çakar Fatih, Torun Lokman

机构信息

Chemistry Department, Faculty of Science and Art, Yildiz Technical University , Istanbul Turkey.

Chemistry Department, Faculty of Science and Art, Kirklareli University, Kirklareli Turkey.

出版信息

Turk J Chem. 2020 Jun 1;44(3):726-735. doi: 10.3906/kim-1912-51. eCollection 2020.

DOI:10.3906/kim-1912-51
PMID:33488189
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7671215/
Abstract

In this study, we reported the synthesis of a new tribranched macromolecule liquid crystal with triazine in the centre. The central triazine core is bonded via sequences of Sonigashira coupling to 3 triazine unites through acetylenic bridges. The triazines at the periphery are substituted with 2 chiral citronellyloxy side groups. The salt of the resulting star-shaped macromolecule, which was oily at room temperature, with 4-dodecyloxybenzoic acid at 1:1 ratio exhibited a Smectic C (SmC) mesophase. The liquid crystalline properties of organic salt were investigated using DSC (differential scanning calorimetry) and POM (polarizing optical microscopy).

摘要

在本研究中，我们报道了一种新型三分支大分子液晶的合成，其中心为三嗪。中心三嗪核通过Sonigashira偶联序列经炔桥连接到3个三嗪单元。外围的三嗪被2个手性香茅氧基侧基取代。所得室温下为油性的星形大分子与4-十二烷氧基苯甲酸按1:1比例形成的盐呈现近晶C（SmC）中间相。使用差示扫描量热法（DSC）和偏光显微镜（POM）研究了有机盐的液晶性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/d20c9f89c004/turkjchem-44-726-fig005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/477853ae47c4/turkjchem-44-726-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/d1718ddfa8f2/turkjchem-44-726-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/a35fd312566b/turkjchem-44-726-fig001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/ab0b80721e10/turkjchem-44-726-fig002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/a80edc023d68/turkjchem-44-726-fig003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/91829f020d8c/turkjchem-44-726-fig004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/d20c9f89c004/turkjchem-44-726-fig005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/477853ae47c4/turkjchem-44-726-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/d1718ddfa8f2/turkjchem-44-726-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/a35fd312566b/turkjchem-44-726-fig001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/ab0b80721e10/turkjchem-44-726-fig002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/a80edc023d68/turkjchem-44-726-fig003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/91829f020d8c/turkjchem-44-726-fig004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f4b/7671215/d20c9f89c004/turkjchem-44-726-fig005.jpg

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1,2,3-Triazole-based inhibitors of Porphyromonas gingivalis adherence to oral streptococci and biofilm formation.基于1,2,3-三唑的牙龈卟啉单胞菌黏附口腔链球菌及生物膜形成的抑制剂
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