Issue 56, 2021

Facile proton-coupled electron transfer enabled by coordination-induced E–H bond weakening to boron

Abstract

We report the facile activation of aryl E–H (ArEH; E = N, O, S; Ar = Ph or C6F5) or ammonia N–H bonds via coordination-induced bond weakening to a redox-active boron center in the complex, Image ID:d1cc02832d-t1.gif (1). Substantial decreases in E–H bond dissociation free energies (BDFEs) are observed upon substrate coordination, enabling subsequent facile proton-coupled electron transfer (PCET). A drop of >50 kcal mol−1 in H2N–H BDFE upon coordination was experimentally determined.

Graphical abstract: Facile proton-coupled electron transfer enabled by coordination-induced E–H bond weakening to boron

Supplementary files

Article information

Article type
Communication
Submitted
28 maj 2021
Accepted
15 jun 2021
First published
21 jun 2021

Chem. Commun., 2021,57, 6903-6906

Author version available

Facile proton-coupled electron transfer enabled by coordination-induced E–H bond weakening to boron

A. Wong, A. Chakraborty, D. Bawari, G. Wu, R. Dobrovetsky and G. Ménard, Chem. Commun., 2021, 57, 6903 DOI: 10.1039/D1CC02832D

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