Calamitic organometallic liquid crystals with terminal metal. Syntheses and liquid crystal properties of dicarbonylrhodium (I) β-diketonate complexes

…, WJ Guang, KQ Zhao, WZ Zheng, LF Zhang

Index: Wan, Wen; Guang, Wen-Jie; Zhao, Ke-Qin; Zheng, Wei-Zhong; Zhang, Liang-Fu Journal of Organometallic Chemistry, 1998 , vol. 557, # 2 p. 157 - 161

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Abstract

A series of novel organometallic complexes based on 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 ...