Earth-Abundant Macrocyclic Metal Complexes for Photoredox Catalysis

光催化剂是影响可再生能源和有机合成中不可或缺的化学作用的有力工具。光催化已经实现了一系列令人印象深刻的小分子和碳功能化反应，并且在这个动态领域不断发现新的应用。然而，Ru-和Ir-化合物，经常被用作光敏剂在许多这些过程。重要的研究工作集中在用廉价的、地球上丰富的替代品取代这些贵金属络合物上。我们开发了一系列大环Mabiq配体的第一行过渡金属配合物。M-Mabiq配合物的氧化还原和光化学性质使其成为很有前途的光氧化还原催化剂。建议的研究将集中于研究一系列单金属和双金属Mabiq配合物的详细光化学性质，以及配合物的更广泛的催化能力。本研究的目的是：(1)探索M-Mabiq激发态的性质和性质；2)探索双光氧化还原催化的反应范围和机会；3)合成和研究双金属Mabiq配合物用于双功能光催化。该项目将采用合成、光谱学、计算工作和反应性研究的结合。这项研究将有助于

Photocatalysts are powerful tools for effecting chemistry integral to renewable energy and organic synthesis. Photocatalysis has already enabled an impressive range of small molecule and carbon functionalization reactions, and novel applications are continuously being discovered in this dynamic field. However, Ru- and Ir- compounds, are frequently used as photosensitizers for many of these processes. Significant research efforts have focused on replacing these noble metal complexes with inexpensive, earth-abundant alternatives. We have developed a series of first-row transition metal complexes of the macrocyclic Mabiq ligand. The redox and photochemical properties of the M-Mabiq complexes make them promising photoredox catalysts. The proposed research will focus on studies to examine the detailed photochemical properties of a series of mono- and bi-metallic Mabiq complexes, and the broader catalytic capacity of the complexes. The aim of the research is to 1) probe the nature and properties of the M-Mabiq excited states; 2) explore the reaction scope and opportunities for dual photoredox catalysis; 3) synthesize and study bimetallic Mabiq complexes for bifunctional photocatalysis. The project will employ a combination of synthesis, spectroscopy, computational work and reactivity studies. The research will contribute to t