METHOD FOR PRODUCING COMPOUND HAVING DEUTERATED AROMATIC RING OR HETEROCYCLIC RING
申请人:Shimodaira Haruki
公开号:US20100331540A1
公开(公告)日:2010-12-30
A method for producing a compound having a deuterated aromatic ring or heterocyclic ring according to the invention includes heating a compound having an aromatic ring or heterocyclic ring in the presence of heavy water, a transition metal and a metal which generates deuterium. As the metal which generates deuterium, at least one metal selected from the group consisting of aluminum, magnesium, zinc, iron, lead and tin is preferred. As the transition metal, at least one metal selected from the group consisting of platinum, palladium, ruthenium and rhodium is preferred. The heating is preferably carried out by microwave irradiation.
作者:Khudozhitkov, Alexander E.、Ogiwara, Naoki、Donoshita, Masaki、Kobayashi, Hirokazu、Stepanov, Alexander G.、Kolokolov, Daniil I.、Kitagawa, Hiroshi
DOI:10.1021/jacs.3c13156
日期:——
macroscopic dynamics of MOF glasses by studying their rheological behavior; however, their microscopic dynamics remain unclear. In this work, we studied the effect of vitrification on linker dynamics in ZIF-62 by solid-state 2H nuclearmagneticresonance (NMR) spectroscopy. 2H NMR relaxation analysis provided a detailed picture of the mobility of the ZIF-62 linkers, including local restricted librations and
金属有机骨架(MOF)玻璃已成为一类新型有机无机杂化玻璃材料。人们付出了大量努力,通过研究 MOF 玻璃的流变行为来揭示其宏观动力学;然而,它们的微观动力学仍不清楚。在这项工作中,我们通过固态2 H 核磁共振 (NMR) 光谱研究了玻璃化对 ZIF-62 中连接基动力学的影响。 2 H NMR 弛豫分析提供了 ZIF-62 连接子迁移率的详细图片,包括局部受限振动和大幅度扭曲;这些细节得到了分子动力学的验证。 ZIF-62 晶体和玻璃的比较表明,玻璃化不会严重影响大振幅扭转的快速单独翻转运动,而它会随着激活势垒的降低而促进缓慢的协同大振幅扭转运动。这些观察结果支持了之前的研究结果,表明玻璃状 ZIF-62 保留了永久的孔隙率,并且由于配位角的扭曲,配体的排列存在短程无序。