A Synthetic Approach to the Ferroelectric Metallomesophase Materials Utilizing the Polarity of Coordinate Bonds

利用配位键的极性开发铁电金属氧化物酶材料，进行了综合研究。本文选择了三种类型的配合物进行研究，并对金属蛋白酶中可能的偶极有序机制进行了评估.金属-水杨醛亚胺配合物近晶C相的形成及偶极相互作用的影响。制备手性近晶C材料是制备铁电液晶的一个直接途径。首先需要了解倾斜近晶的分子起源，本研究分析了各种各样的铜-水杨醛亚胺介晶的介晶特征，特别是近晶A/C多态性。结果表明，要稳定倾斜相位，必须控制偶极密度波与一维位置序相称.金属-二硫代氨基甲酸配合物的近晶介晶性 ...更多信息 病毒变异金属-二硫代氨基甲酸盐配合物的设计是为了获得金属介晶，其分子形状可以被看作是简单的棒状，并测试现有分子理论的适用性。获得了一组新的近晶C材料，并合成了一种具有甲基尾支化的手性衍生物.关于[M（salen）]型配合物的介晶性。本研究的目标是实现极化配位键之间的直接相互作用，如金属氧代基团中的一个，导致铁电有序。这种机理已经在关于salen衍生物的氧钒络合物的文献中提出。然而，中心对称的二聚体聚集体的形成已暗示在本研究中，其镍和铜类似物。这可能是一个普遍存在的问题，在低分子对称性和携带强极化键的金属介晶。看来，如果我们要控制介晶和偶极有序行为的配体设计需要进一步阐述。少

A synthetic research has been undertaken in order to develop ferroelectric metallomesophase materials utilizing the polarity of coordinate bonds. Three types of complexes were chosen for the study and the mechanism of possible dipolar ordering in metallomesophases has been assessed.1. On the Formation of Smectic C Phases by Metal-salicylaldimine Complexes and the Effect of Dipolar Interactions. A straightforward approach to the ferroelectric liquid crystals is to prepare chiral smectic C materials. In need of understanding the molecular origin for tilted smectics in the first place, a wide variety of copper-salicylaldimine mesogens have been analyzed in this study for their mesomorphic characteristics, the smectic A/C polymorphism in particular. The results suggest that the dipole density wave should be controlled to be commensurate with the one-dimensional positional order if we are to stabilize the tilted phase.2. On the Smectic Mesomorphism in Metal-dithiocarbamate Complexes anda Ch … More iral Modification. The metal-dithiocarbamate complexes have been designed in order to obtain a metallomesogen, molecular shape of which can be viewed as simply rodlike, and test applicability of existing molecular theories. A new group of smectic C materials have been obtained, and a chiral derivative with a methyl tail-branching is now in hand.3. On the Mesomorphism of Complexes of [M (salen) ] Type. The goal of this study has been to achieve a direct interaction between polarized coordinate bonds such as one in metal-oxo group, leading to the ferroelectric ordering. Such mechanism has been proposed in the literature on oxovanadium omplexes of salen derivatives. However, formation of centrosymmetric dimeric aggregates has been hinted in the present study on their nickel and copper analogues. This may be a widespread problem in metallomesogens of low molecular symmetry and carrying strongly polarized bonds. It seems that the ligand design needs to be elaborated further if we are to control the mesomorphic and the dipolar ordering behaviors. Less