Zinc-Ion-Stabilized Charge-Transfer Interactions Drive Self-Complementary or Complementary Molecular Recognition
作者:Shuta Iseki、Kohei Nonomura、Sakura Kishida、Daiji Ogata、Junpei Yuasa
DOI:10.1021/jacs.0c05940
日期:2020.9.16
case of a homochiral pair (9,10LD'(S) and 1,5LA'(S)), self-complementary association (narcissistic self-sorting) occurred in the Zn2+ assembly with heterochiral combinations of the donor and acceptor ligands (9,10LD'(S)/1,5LA'(R) and 9,10LD'(S)/1,5LA'(R)/1,5LA'(R)). Narcissistic self-sorting also took place between the positional isomer of the donor ligands (9,10LD and 1,5LD) to form individual homoligand
在这里,我们表明电荷转移相互作用决定了供体和受体双位配体是否会在金属离子剪切时以互补或自互补的方式结合。设计了含有两个咪唑侧臂作为锌配位位点的基于蒽-(9,10LD 和 1,5LD)和蒽醌-(1,5LA)的双位配体。9,10LD 和 1,5LA 系统在被两个锌离子 (Zn2+) 剪切后以互补方式 (LA/LD/LA) 结合以形成交替的供体-受体组件 [(9,10LD)(1,5LA)2 -(Zn2+)2]。然而,一旦电荷转移相互作用被咪唑侧臂(9,10LD'(S) 和 1,5LA'(S))的细微修饰所扰乱,自互补结合(LD'/LD'/LD'/ LD' 和 LA'/LA'/LA'/LA') 在供体- (9,10LD'(S)) 和受体- (1,5LA') 之间 (S)) 配体主要发生形成同构 [(9,10LD'(S))4-(Zn2+)2 和 (1,5LA'(S))4-(Zn2+)2]。与同手性对(9