bidentate dendromesogenic ligand (L) that exhibits thermotropic liquid-crystallineproperties. Combination of the diruthenium complex [Ru2(p-cymene)2(donq)][DDS]2 (M) with L, by coordination-driven self-assembly, affords the discrete and well-defined metallacycle M2L2. Like L, this supramolecular dendritic system displays mesomorphic properties above 50 °C. Both compounds L and M2L2 show smectic phases
用带有氰基联苯端基的聚(芳基酯)树状聚合物将1,4-二(4-吡啶基)苯官能化,得到显示热致液晶性质的双齿树状间苯二酚配体(L)。钌配合物[Ru 2(p- cymene)2(donq)] [DDS] 2(M)与L的组合,通过配位驱动的自组装,提供了离散且定义明确的金属环M 2 L 2。像L一样,该超分子树突系统在50°C以上显示出介晶性质。化合物L和M 2 L图2显示近晶相,其特征在于多个组分的多层组织。