Importance of steric bulkiness of iridium photocatalysts with PNNP tetradentate ligands for CO2 reduction

Kenji Kamada; Jieun Jung; Yohei Kametani; Taku Wakabayashi; Yoshihito Shiota; Kazunari Yoshizawa; Seong Hee Bae; Manami Muraki; Masayuki Naruto; Keita Sekizawa; Shunsuke Sato; Takeshi Morikawa; Susumu Saito

doi:10.1039/D2CC01701F

Importance of steric bulkiness of iridium photocatalysts with PNNP tetradentate ligands for CO₂ reduction†

Kenji Kamada,^a Jieun Jung,

*^a Yohei Kametani,

^b Taku Wakabayashi,

^a Yoshihito Shiota,

^b Kazunari Yoshizawa,

^b Seong Hee Bae,^a Manami Muraki,^a Masayuki Naruto,

^a Keita Sekizawa,

^c Shunsuke Sato,

^c Takeshi Morikawa

^c and Susumu Saito

*^ad

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* Corresponding authors

^a Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
E-mail: jieun@chem.nagoya-u.ac.jp, saito.susumu@f.mbox.nagoya-u.ac.jp

^b Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan

^c Toyota Central R&D Laboratories, Inc., Nagakute 480-1192, Japan

^d Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Chikusa, Nagoya 464-8602, Japan

Abstract

A series of Ir complexes has been developed as multifunctional photocatalysts for CO₂ reduction to give HCO₂H selectively. The catalytic activities and photophysical properties vary widely across the series, and the bulky group insertion resulted in the formation of HCO₂H and CO with the catalyst turnover number of >10 400.

This article is part of the themed collection: 2022 Pioneering Investigators

Chemical Communications

Importance of steric bulkiness of iridium photocatalysts with PNNP tetradentate ligands for CO₂ reduction†

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Importance of steric bulkiness of iridium photocatalysts with PNNP tetradentate ligands for CO₂ reduction

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