CAJ | 학술논문

采用具有潜在异构手性的双臂配体,双吡啶二甲基联苯-2,2'-二酰肼,合成了4个双核螺旋配合物.配体与CdI2和Cu(NO3)2反应得到双核单螺旋化合物1和2,在化合物2中,由于C-H…π和π…π的协同相互作用沿ab面形成单一手性的二维平面.双核双螺旋化合物3(Ni(Ⅱ))和4(Co(Ⅱ))中的金属中心表现相同的绝对构型,说明含异构手性的配体能够把金属中心的手性从一个中心传递到另一个中心.
채용구유잠재이구수성적쌍비배체,쌍필정이갑기련분-2,2'-이선정,합성료4개쌍핵라선배합물.배체여CdI2화Cu(NO3)2반응득도쌍핵단라선화합물1화2,재화합물2중,유우C-H…π화π…π적협동상호작용연ab면형성단일수성적이유평면.쌍핵쌍라선화합물3(Ni(Ⅱ))화4(Co(Ⅱ))중적금속중심표현상동적절대구형,설명함이구수성적배체능구파금속중심적수성종일개중심전체도령일개중심.
Molecule clip, bis (pyridin-2-ylmethylene)biphenyl-2,2'-dicarbohydrazide, with potential atropisomeric chirality was used as helicand for construction of dinuclear helicates. Reaction of the ligand with CdI2 or Cu(NO3)2 afforded dinuclear monohelical complexes 1 and 2 equipped with the aromatic rings, and the complex interacted each other through cooperative C-H…π and π…π interactions to form homochiral 2D layer along ab plane. The formation of dinuclear double helicates Ni(Ⅱ) and Co(Ⅱ) complexes 3 and 4 were with the metal centers exhibiting the same absolute configurations. Thus the atropisomeric chiral bridging mode is main factor for the ligand to translate chirality of metal centers from one center to another.