Kobayashi Yoshinao, Sunada Yusuke
Department of Applied Chemistry, School of Engineering, The University of Tokyo 4-6-1, Komaba, Meguro-ku Tokyo 153-8505 Japan.
Institute of Industrial Science, The University of Tokyo 4-6-1, Komaba, Meguro-ku Tokyo 153-8505 Japan
Chem Sci. 2023 Jan 20;14(5):1065-1071. doi: 10.1039/d2sc06011f. eCollection 2023 Feb 1.
The use of metal hydrides such as NaBH as hydrogen-storage materials has recently received substantial research attention on account of the worldwide demand for the development of efficient hydrogen-production, -storage, and -transportation systems. Here, we report the quantitative production of H gas from a germanium hydride, PhGeH, mediated by an iron catalyst at room temperature dehydrogenative coupling, concomitant with the formation of (GePh). Of particular importance is that PhGeH can be facilely recovered from (GePh) by contact with 1 atm of H or PhICl/LiAlH at 0 °C or 40 °C, respectively. A detailed reaction mechanism for the iron-catalyzed dehydrogenative coupling of PhGeH is proposed based on the isolation of four intermediate iron species.
由于全球对高效制氢、储氢和输氢系统发展的需求，诸如硼氢化钠等金属氢化物作为储氢材料的应用近来受到了大量的研究关注。在此，我们报告了在室温下，由铁催化剂介导的氢化锗（PhGeH）脱氢偶联定量生成氢气，同时形成（GePh）。特别重要的是，分别在0°C或40°C下，通过与1个大气压的氢气或PhICl/LiAlH接触，PhGeH可以很容易地从（GePh）中回收。基于四种中间铁物种的分离，提出了铁催化PhGeH脱氢偶联的详细反应机理。
