Title: A cyanide-bridged di-manganese carbonyl complex that photochemically reduces CO2 to CO

Journal Article · · Dalton Transactions
DOI: https://doi.org/10.1039/c8dt03358g · OSTI ID:1499986

Manganese(I) tricarbonyl complexes such as [Mn(bpy)(CO)3L] (L = Br, or CN) are known to be electrocatalysts for CO2 reduction to CO. However, due to their rapid photodegradation under UV and visible light, these monomeric manganese complexes have not been considered as photocatalysts for CO2 reduction without the use of a photosensitizer. We report a cyanide-bridged di-manganese complex, {[Mn(bpy)(CO)3]2(μ-CN)}ClO4, which is both electrocatalytic and photochemically active for CO2 reduction to CO. Compared to the [Mn(bpy)(CO)3CN] electrocatalyst, our CN-bridged binuclear complex is a more efficient electrocatalyst for CO2 reduction using H2O as a proton source. In addition, we report a photochemical CO2 reduction to CO using the dimanganese complex under 395 nm irradiation.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Bioinspired Light-Escalated Chemistry (BioLEC); Princeton Univ., NJ (United States)
Sponsoring Organization:
National Science Foundation (NSF) (United States); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0019370
OSTI ID:
1499986
Journal Information:
Dalton Transactions, Journal Name: Dalton Transactions Journal Issue: 4 Vol. 48; ISSN 1477-9226
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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