Highly active and selective photochemical reduction of CO2 to CO using molecular-defined cyclopentadienone iron complexes

Alonso Rosas-Hernández; Pamela G Alsabeh; Enrico Barsch; Hernrik Junge; Ralf Ludwig; Matthias Beller

doi:10.1039/c6cc01671e

Highly active and selective photochemical reduction of CO2 to CO using molecular-defined cyclopentadienone iron complexes

Chem Commun (Camb). 2016 Jun 28;52(54):8393-6. doi: 10.1039/c6cc01671e.

Authors

Alonso Rosas-Hernández¹, Pamela G Alsabeh¹, Enrico Barsch², Hernrik Junge¹, Ralf Ludwig², Matthias Beller¹

Affiliations

¹ Leibniz Institute for Catalysis at the University of Rostock, Albert Einstein-Straße 29a, 18059 Rostock, Germany. matthias.beller@catalysis.de.
² Leibniz Institute for Catalysis at the University of Rostock, Albert Einstein-Straße 29a, 18059 Rostock, Germany. matthias.beller@catalysis.de and Institute of Chemistry, Department of Physical Chemistry, University of Rostock, Dr. Lorenz Weg 1, 18059 Rostock, Germany.

PMID: 27301351
DOI: 10.1039/c6cc01671e

Abstract

Herein, we report highly active (cyclopentadienone)iron-tricarbonyl complexes for CO2 photoreduction using visible light with an Ir complex as photosensitizer and TEOA as electron/proton donor. Turnover numbers (TON) of ca. 600 (1 h) with initial turnover frequencies (TOF) up to 22.2 min(-1) were observed. Operando FTIR measurements allowed for the proposal of a plausible mechanism for catalyst activation.