Title
Structural Characterization of the [CuOR]2+ Core
Document Type
Article
Publication Date
2-23-2021
Disciplines
Inorganic Chemistry | Physical Chemistry
Abstract
Formal Cu(III) complexes bearing an oxygen-based auxiliary ligand ([CuOR]2+, R = H or CH2CF3) were stabilized by modulating the donor character of supporting ligand LY (LY = 4-Y, N,N′-bis(2,6-diisopropylphenyl)-2,6-pyridinedicarboxamide, Y = H or OMe) and/or the basicity of the auxiliary ligand, enabling the first characterization of these typically highly reactive cores by NMR spectroscopy and X-ray crystallography. Enhanced lifetimes in solution and slowed rates of PCET with a phenol substrate were observed. NMR spectra corroborate the S = 0 ground states of the complexes, and X-ray structures reveal shortened Cu–ligand bond distances that match well with theory.
Publication Title
Journal of the American Chemical Society
Volume
143
Issue
9
First Page
3295
Last Page
3299
DOI
10.1021/jacs.0c13470
Recommended Citation
V. M. Krishnan, D. Y. Shopov, C. J. Bouchey, W. D. Bailey, R. Parveen, B. Vlaisavljevich, and W. B. Tolman “Structural Characterization of the [CuOR]2+ Core” J. Am. Chem. Soc. 2021, 143, 9, 3295-3299.