title: Direct Transformation of Molecular Dinitrogen into Ammonia Catalyzed by Cobalt Dinitrogen Complexes Bearing Anionic PNP Pincer Ligands.
abstract: The direct formation of ammonia from molecular dinitrogen under mild reaction conditions was achieved by using new cobalt dinitrogen complexes bearing an anionic PNP-type pincer ligand. Up to 15.9 equivalents of ammonia were produced based on the amount of catalyst together with 1.0 equivalent of hydrazine (17.9 equiv of fixed nitrogen atoms).
authors.affiliation: Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
authors.forename: Shogo
authors.initials: S
authors.lastname: Kuriyama
authors.affiliation: Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Arashiba
authors.affiliation: Institute for Materials Chemistry and Engineering, Kyushu University, Nishi-ku, Fukuoka, 819-0395, Japan.|Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto, 615-8520, Japan.
authors.forename: Hiromasa
authors.initials: H
authors.lastname: Tanaka
authors.affiliation: Institute for Materials Chemistry and Engineering, Kyushu University, Nishi-ku, Fukuoka, 819-0395, Japan.|Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto, 615-8520, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Matsuo
authors.affiliation: Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
authors.forename: Kazunari
authors.initials: K
authors.lastname: Nakajima
authors.affiliation: Institute for Materials Chemistry and Engineering, Kyushu University, Nishi-ku, Fukuoka, 819-0395, Japan. kazunari@ms.ifoc.kyushu-u.ac.jp.|Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto, 615-8520, Japan. kazunari@ms.ifoc.kyushu-u.ac.jp.
authors.forename: Kazunari
authors.initials: K
authors.lastname: Yoshizawa
authors.affiliation: Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan. ynishiba@sys.t.u-tokyo.ac.jp.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Nishibayashi
keywords: ammonia; catalysis; cobalt; dinitrogen; pincer ligands