One-pot gram-scale rapid synthesis of MN4 complexes with 14-membered ring macrocyclic ligand as a precursor for carbon-based ORR and CO2RR catalysts

Mana Ogawa; Sayaka Usami; Ryo Takahama; Kazuko Iwamoto; Tomomi Nabeta; Shin Kawashima; Ryoichi Kojima; Junya Ohyama; Teruaki Hayakawa; Yuta Nabae; Makoto Moriya

doi:10.1039/D3DT04129H

One-pot gram-scale rapid synthesis of MN₄ complexes with 14-membered ring macrocyclic ligand as a precursor for carbon-based ORR and CO₂RR catalysts†

Mana Ogawa,^a Sayaka Usami,^a Ryo Takahama,^a Kazuko Iwamoto,^a Tomomi Nabeta,^a Shin Kawashima,^b Ryoichi Kojima,^b Junya Ohyama,

^c Teruaki Hayakawa,

^d Yuta Nabae

*^d and Makoto Moriya

*^aef

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* Corresponding authors

^a Department of Science, Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
E-mail: moriya.makoto@shizuoka.ac.jp

^b Corporate Research & Development, Asahi Kasei Corporation, 2767-11 Niihama, Shionasu, Kojima, Kurashiki, Okayama 711-8510, Japan

^c Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan

^d Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 S8-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
E-mail: nabae.y.aa@m.titech.ac.jp

^e College of Science, Academic Institute, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan

^f Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan

Abstract

Herein, CoN₄, CuN₄, and NiN₄ complexes with a 14-membered ring hexaazamacrocycle ligand H₂HAM were synthesised as precursors for ORR and CO₂RR catalysts via a one-pot, gram-scale synthesis procedure, which involved microwave heating for only 10 min. Detailed structures of the obtained 14MR-MN₄ complex were revealed by single-crystal X-ray diffraction measurements.

Dalton Transactions

One-pot gram-scale rapid synthesis of MN₄ complexes with 14-membered ring macrocyclic ligand as a precursor for carbon-based ORR and CO₂RR catalysts†

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One-pot gram-scale rapid synthesis of MN₄ complexes with 14-membered ring macrocyclic ligand as a precursor for carbon-based ORR and CO₂RR catalysts

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