手性(物理)
纳米团簇
位阻效应
化学
对映体
对映选择合成
立体化学
轴手性
结晶学
催化作用
有机化学
物理
夸克
Nambu–Jona Lasinio模型
手征对称破缺
量子力学
作者
Takuya Nakashima,Riku Tanibe,Hiroto Yoshida,Masahiro Ehara,Miwa Kuzuhara,Tsuyoshi Kawai
标识
DOI:10.1002/anie.202208273
摘要
Imparting chirality affords additive values, functions and responsiveness in molecular systems including nanoscale materials. Here, we report pathway-dependent chirality control in silver nanoclusters (NCs). The use of enantiomeric ligand, α-dihydrolipoic acid (DHLA), for the synthesis of Ag NCs leads to the preferential formation of one-handed chiral Ag29 (DHLA)12 NCs with intrinsic chirality in the exterior shell composed of a silver-dithiolate framework. Small Lewis base molecules such as pyridine bind to silver atoms in the shell of NC as a guest. The guest binding reverses the relative stability between the right- and left-handed NCs upon a steric interaction with the chiral ligand DHLA in the exterior shell in a kinetic manner, leading to unprecedented chirality inversion in the synthesis of NCs. This mechanism is further extended to the self-regulation or self-replication of chirality through interNC interactions dependent on the concentration in the synthesis of NCs.
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