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Title: O2 Activation by a Heterobimetallic Zr/Co Complex

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.9b04215· OSTI ID:1524776

Oxygen reduction is a critical half reaction in renewable fuel cell development and a key step in the development of aerobic oxidation reactions. We report rapid two-electron O2 reduction by a d0 ZrIV center with an appended redox-active Co–I site serving as an electron reservoir. The early/late heterobimetallic Zr/Co complex (THF)Zr(MesNPiPr2)3CoCNtBu (1) reacts readily with O2 and O atom transfer reagents to generate reactive oxygenated species including terminal peroxo and oxo complexes, (O2)Zr(MesNPiPr2)3CoCNtBu (2) and O≡Zr(MesNPiPr2)3CoCNtBu (3). The bimetallic Zr/Co complex provides a new cooperative synthetic pathway to promote multielectron redox processes such as oxygen reduction, with each metal playing a distinct role as a substrate binding site or redox mediator.

Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019179
OSTI ID:
1524776
Journal Information:
Journal of the American Chemical Society, Vol. 141, Issue 24; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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