H-bonded complexes containing 1,3,4-oxadiazole derivatives: mesomorphic behaviour, photophysical properties and chiral photoinduction
作者:André A. Vieira、Emma Cavero、Pilar Romero、Hugo Gallardo、José Luis Serrano、Teresa Sierra
DOI:10.1039/c4tc00886c
日期:——
supramolecular complexes through hydrogen bonding with 2,4-diamino-6-dodecylamino-1,3,5-triazine in a 3 : 1 ratio, respectively. The formation of the complexes was studied by infrared and NMR techniques. The thermal behaviour and mesomorphic properties of all the complexes were investigated by polarized light optical microscopy, differential scanning calorimetry and X-ray diffraction. Hexagonal and rectangular
描述了衍生自1,3,4-恶二唑的两个系列的新V形酸。这些酸分别通过与3:1的2,4-二氨基-6-十二烷基氨基-1,3,5-三嗪氢键键合来制备超分子复合物。通过红外和核磁共振技术研究了配合物的形成。通过偏光光学显微镜,差示扫描量热法和X射线衍射研究了所有配合物的热行为和介晶性质。在室温下观察到所有配合物的六角形和矩形柱状中间相,没有结晶的迹象。圆二色性研究的结果使我们提出,在液晶状态下,这些材料采用螺旋圆柱状组织,并且可以通过CPL照射来控制手性。