Ashida Yuya, Egi Akihito, Arashiba Kazuya, Tanaka Hiromasa, Mitsumoto Taichi, Kuriyama Shogo, Yoshizawa Kazunari, Nishibayashi Yoshiaki
Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
Institute for Materials Chemistry and Engineering, Kyushu University, Nishi-ku, Fukuoka, Japan.
Chemistry. 2022 May 2;28(25):e202200557. doi: 10.1002/chem.202200557. Epub 2022 Mar 28.
A series of chromium-halide, -nitride, and -dinitrogen complexes bearing carbene- and phosphine-based PCP-type pincer ligands has been newly prepared, and some of them are found to work as effective catalysts to reduce dinitrogen under atmospheric pressure, whereby up to 11.60 equiv. of ammonia and 2.52 equiv. of hydrazine (16.6 equiv. of fixed N atom) are produced based on the chromium atom. To the best of our knowledge, this is the first successful example of chromium-catalyzed conversion of dinitrogen to ammonia and hydrazine under mild reaction conditions.
一系列带有卡宾和膦基PCP型钳形配体的卤化铬、氮化铬和二氮配合物已被新制备出来，并且发现其中一些在大气压下可作为还原二氮的有效催化剂，基于铬原子可生成高达11.60当量的氨和2.52当量的肼（16.6当量的固定氮原子）。据我们所知，这是在温和反应条件下铬催化二氮转化为氨和肼的首个成功实例。
