Calamitic organometallic liquid crystals with terminal metal. Syntheses and liquid crystal properties of dicarbonylrhodium(I) β-diketonate complexes
作者:Wen Wan、Wen-Jie Guang、Ke-Qin Zhao、Wei-Zhong Zheng、Liang-Fu Zhang
DOI:10.1016/s0022-328x(97)00653-0
日期:1998.4
γ-substituted β-diketone ligands with terminal metal Rh(I) have been prepared by reaction of the ligands with [Rh(CO)2(μ-Cl)]2. The mesomorphism of the ligands and complexes has been investigated using DSC and polarizing microscope. It is found that non-mesogenic ligands with n=7, 8, 9, 10, 11 can form liquid crystalline phase by direct coordination to metal. The effect of the terminal carbon number on the mesomorphism
通过配体与[Rh(CO)2(μ- Cl)] 2的反应,制备了一系列新型的基于γ-取代的β-二酮配体与末端金属Rh(I)的有机金属配合物。配体和配合物的同构已使用DSC和偏光显微镜进行了研究。发现n=7、8、9、10、11的非介晶配体可以通过与金属直接配位而形成液晶相。还讨论了末端碳原子数对同晶型的影响。