Formation of Gas-Phase Formate in Thermal Reactions of Carbon Dioxide with Diatomic Iron Hydride Anions.
Title | Formation of Gas-Phase Formate in Thermal Reactions of Carbon Dioxide with Diatomic Iron Hydride Anions. |
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Authors | Jiang, L.X.; Zhao, C.; Li, X.N.; Chen, H.; He, S.G. |
Journal | Angew Chem Int Ed Engl |
DOI | 10.1002/anie.201611483 |
Abstract |
The hydrogenation of carbon dioxide involves the activation of the thermodynamically very stable molecule CO2 and formation of a C-H bond. Herein, we report that HCO2(-) and CO can be formed in the thermal reaction of CO2 with a diatomic metal hydride species, FeH(-) . The FeH(-) anions were produced by laser ablation, and the reaction with CO2 was analyzed by mass spectrometry and quantum-chemical calculations. Gas-phase HCO2(-) was observed directly as a product, and its formation was predicted to proceed by facile hydride transfer. The mechanism of CO2 hydrogenation in this gas-phase study parallels similar behavior of a condensed-phase iron catalyst. |