期刊
INORGANIC CHEMISTRY
卷 61, 期 50, 页码 20288-20298出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.2c02678
关键词
-
资金
- National Science Foundation's Graduate Research Fellowship Program
- College of Letters & Science at Montana State University
- MJ Murdock Charitable Trust [2015066:MNL]
- National Science Foundation [NSF-MRI:DBI-1532078, NSF-MRI:CHE-2018388, CHE-1855531]
- Office of the Vice President for Research and Economic Development at MSU
- FAS Research Computing
This study demonstrates the mechanism of solvent-induced spin state change in copper corroles and the related paramagnetic and color changes.
The electronic structure of copper corroles has been a topic of debate and revision since the advent of corrole chemistry. The ground state of these compounds is best described as an antiferromagnetically coupled Cu(II) corrole radical cation. In coordinating solvents, these molecules become paramagnetic, and this is often accompanied by a color change. The underlying chemistry of these solvent-induced properties is currently unknown. Here, we show that a coordinating solvent, such as pyridine, induces a change in the ground spin state from an antiferromagnetically coupled Cu(II) corrole radical cation to a ferromagnetically coupled triplet. Over time, the triplet reacts to produce a species with spectral signatures that are characteristic of the one electron-reduced Cu(II) corrole. These observations account for the solvent-induced paramagnetism and the associated color changes that have been observed for copper corroles in coordinating solvents.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据