Tuning the Electrochemical and Photophysical Properties of Osmium-Based Photoredox Catalysts

被引：22

作者：

Goldschmid, Samantha L. ^{[1
]}

Bednarova, Eva ^{[1
]}

Beck, Logan R. ^{[1
]}

Xie, Katherine ^{[1
]}

Tay, Nicholas E. S. ^{[1
]}

Ravetz, Benjamin D. ^{[1
]}

Li, Jun ^{[2
]}

Joe, Candice L. ^{[2
]}

Rovis, Tomislav ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Bristol Myers Squibb, Chem Proc Dev, New Brunswick, NJ 08903 USA

来源：

SYNLETT | 2022年 / 33卷 / 03期

关键词：

photoredox catalysis; near-infrared; ligand design; COMPLEXES; POTENTIALS; LIGHT;

D O I：

10.1055/s-0041-1737792

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The use of low-energy deep-red (DR) and near-infrared (NIR) light to excite chromophores enables catalysis to ensue across barriers such as materials and tissues. Herein, we report the detailed photophysical characterization of a library of Os∥polypyridyl photosensitizers that absorb low-energy light. By tuning ligand scaffold and electron density, we access a range of synthetically useful excited state energies and redox potentials. 1 Introduction 1.1 Scope 1.2 Measuring Ground-State Redox Potentials 1.3 Measuring Photophysical Properties 1.4 Synthesis of Osmium Complexes 2 Properties of Osmium Complexes 2.1 Redox Potentials of Os(L)2-Type Complexes 2.2 Redox Potentials of Os(L)3-Type Complexes 2.3 UV/Vis Absorption and Emission Spectroscopy 3 Conclusions. © 2022 Georg Thieme Verlag. All rights reserved.

引用

页码：247 / 258

页数：12

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