【摘 要】
:
金属配位键是一种键能大但又具有动态特性的特殊非共价作用,通过金属配位作用进行组装与调控已得到广泛应用.我们利用铂配位驱动自组装与冠醚主客体化学相结合的正交策略制备
【机 构】
:
杭州师范大学材料与化学化工学院,杭州310036
【出 处】
:
第十九届全国金属有机化学学术讨论会
论文部分内容阅读
金属配位键是一种键能大但又具有动态特性的特殊非共价作用,通过金属配位作用进行组装与调控已得到广泛应用.我们利用铂配位驱动自组装与冠醚主客体化学相结合的正交策略制备了多组分索烃、分子项链和可逆交联的聚轮烷等机械互锁结构[1];采用金属配位的模板导向法,通过烯烃复分解反应合成了具有复杂拓扑结构和纳米尺度的柔性链连接的笼状双卟啉和环状三卟啉、六卟啉结构[2];以手性BINOL 二羧酸衍生物为组装单元,通过配位自组装构筑了一系列2D 和3D 离散型手性组装体[3];设计合成了一种新型的冠醚衍生的超分子手性配体,利用配体上含吡啶基冠醚与具有不同离子半径的碱金属离子或铵盐的主客体作用调控该手性双膦配体,并成功地应用于Rh 催化不对称氢化还原α-脱氢氨基酸酯和α-芳基烯胺及Ir 催化不对称氢化喹啉和喹喔啉,发现碱金属离子或铵盐的加入可明显提高催化活性和ee 值[4].
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