超分子化学
化学
电荷(物理)
固态
结晶学
纳米技术
化学物理
生物物理学
材料科学
晶体结构
生物
物理化学
物理
量子力学
作者
Jia‐Rui Wu,Dongxia Li,Gengxin Wu,Menghao Li,Ying‐Wei Yang
标识
DOI:10.1002/anie.202210579
摘要
Modulating intermolecular charge-transfer (ICT) interactions between specific donor and acceptor species in host-guest systems is a big challenge and full of research value in supramolecular chemistry and materials science. In this work, a strategy to modulate the supramolecular ICT interactions in the solid state is developed by compressing the binding cavity of a macrocyclic host named perethylated leaning pillar[6]arene (p-EtLP6). The solid-state ICT affinities of p-EtLP6 toward multi-types of electron-deficient planar guests could be significantly enhanced by transforming the macrocyclic backbone from the original para-bridged mode into a hybrid para- and meta-bridged isomeric form (m-EtLP6). X-ray single-crystal structural analyses incorporating theoretical calculation demonstrate that the improved ICT affinities are mainly attributed to the superior host-guest size fit arising from the compressed binding cavity in m-EtLP6 as compared with p-EtLP6.
科研通智能强力驱动
Strongly Powered by AbleSci AI