化学
位阻效应
超分子化学
杂原子
金属有机骨架
砷
配体(生物化学)
分子
联吡啶
吸附
金属
无机化学
立体化学
结晶学
晶体结构
有机化学
生物化学
受体
戒指(化学)
作者
Kazuma Kikuchi,Hiroi Sei,Kohei Okubo,Norimitsu Tohnai,Kouki Oka,Shun Dekura,Takashi Kikuchi,Hiroaki Imoto,Kensuke Naka
标识
DOI:10.1021/acs.inorgchem.3c04570
摘要
Bent ligands bridged by heteroatoms have drawn significant interest as supramolecular coordination architectures. Traditionally, divalent group 16 elements are preferred over trivalent group 15 elements because of the anticipated steric hindrance. In this study, we explore metal-organic frameworks (MOFs) based on dipyridinoarsoles (DPAs), 4,4'-bipyridines bridged with an arsenic atom. An MOF with methyl-substituted DPA collapsed upon solvent removal, whereas that with phenyl-substituted DPA demonstrated breathing behavior due to guest molecule adsorption/desorption. In contrast, MOFs using the phosphorus analogue dipyridinophosphole exhibit inferior adsorption and lack breathing behavior. This is the first study to investigate the interplay among substituents, bridging elements, and dynamic behavior in MOFs using bent group 15 ligands.
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