Nitrogen–nitrogen-functionalized N-heterocyclic carbene ruthenium(ii) complexes realized efficient CO2hydrogenation to formateElectronic supplementary information (ESI) available. CCDC 2125582, 2125759and 2125625. For ESI and crystallographic data in CIF or other electronic format see DOI: https://doi.org/10.1039/d2cy00741j

Autor: Gong, Huihua, Cui, Tianhua, Liu, Zheyuan, Zheng, Yanling, Zheng, Xueli, Fu, Haiyan, Yuan, Maolin, Chen, Hua, Xu, Jiaqi, Li, Ruixiang
Zdroj: Catalysis Science & Technology; 2022, Vol. 12 Issue: 20 p6213-6218, 6p
Abstrakt: Three novel Ru(ii)–CNN complexes, namely, [RuH(CO)(PPh3)2(κ2-NimN)]Cl2(1), [fac-RuH(CO)(PPh3)(κ3-CNHN)]Cl (2) and [fac-RuH(CO)(PPh3)(κ3-CNMeN)]Cl (3), have been synthesized for efficient CO2hydrogenation to formate. Complex 2bearing a CNHN ligand exhibits excellent activity and a long catalytic lifetime of 400 h at 170 °C. Notably, the addition of PPh3leads to increased activity and gives a high TON of 6.5 × 105after 400 h.
Databáze: Supplemental Index