【摘 要】
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Main observation and conclusionrnWe report herein a Re-based tricarbonyl catalyst [fac-Re(L1)(CO)3Cl] (Re1) bearing a spiro center and a phenol group as a local proton source in the second coordination sphere.Due to the large steric spiro group,dimerizati
【机 构】
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Department of Chemistry,Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy
论文部分内容阅读
Main observation and conclusionrnWe report herein a Re-based tricarbonyl catalyst [fac-Re(L1)(CO)3Cl] (Re1) bearing a spiro center and a phenol group as a local proton source in the second coordination sphere.Due to the large steric spiro group,dimerization of one-electron reduced species was com-pletely eliminated,improving the stability of Re1.Simultaneously,the phenol group in the second coordination sphere improves the formation of an H-bonding chain that promotes the protonation of CO2 reduction intermediates,boosting the electrocatalytic CO2 reduction activity of Re1.Mechanistic studies reveal that the doubly reduced complex Re1b is active for CO2 addition.
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