Development of novel transformation making ammonia available as energy carrier

2016 Fiscal Year Final Research Report

• Project/Area Number: 26288044
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Synthetic chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: Nishibayashi Yoshiaki 東京大学, 工学(系)研究科(研究院), 教授 (40282579)
• Co-Investigator(Renkei-kenkyūsha): NAKAJIMA Kazunari 東京大学, 大学院工学系研究科, 助教 (10709471) ; YOSHIZAWA Kazunari 九州大学, 先導物質化学研究所, 教授 (30273486) ; SAKATA Ken 星薬科大学, 薬学部, 准教授 (90328922)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 窒素固定 / アンモニア / モリブデン / 酸化還元

Outline of Final Research Achievements

Based on the previous findings we have achieved so far, we have investigated two research topics. One is the development of ammonia synthesis under mild reaction conditions. The other is the development of decomposition of ammonia under mild reaction conditions.
As to the former research topic, we have designed and prepared new dinitrogen-bridged dimolybdenum complexes bearing triphosphine and PCP-type pincer ligand. In addition, these newly prepared molybdenum-dinitrogen complexes have been found to work as effective catalysts than the original complex bearing PNP-type pincer ligand.
As to the latter case, we have designed and prepared initrogen-bridged dimolybdenum complexes bearing ferrocenyldiphosphine and we have disclosed a unique reactivity, where cleavage and recombination of the nitrogen-nitrogen triple bond of the bridged dinitrogen on the two molybdenum atoms have been reversibly controlled by the redox of the molybdenum centers.

Free Research Field

有機金属化学、錯体化学、有機合成化学