Qin Yanfei, Chen Lingjing, Chen Gui, Guo Zhenguo, Wang Lei, Fan Hongbo, Robert Marc, Lau Tai-Chu
Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and Engineering, Shenzhen University, Xueyuan Avenue 1066, Nanshan, Shenzhen, 518055, China.
Chem Commun (Camb). 2020 Jun 11;56(46):6249-6252. doi: 10.1039/d0cc01930e. Epub 2020 May 6.
The iron(ii) complex bearing the 2,2':6',2'':6'',2''':6''',2''''-quinquepyridine (qnpy) ligand, [Fe(qnpy)(HO)], is a highly efficient and robust catalyst for photocatalytic reduction of CO to CO in aqueous acetonitrile solution. A turnover number (TON) for CO of up to 14 095 with 98% selectivity can be achieved using Ru(phen)Cl (phen = 1,10-phenanthroline) as the photosensitizer and BIH (1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole) as the sacrificial reductant in a CO-saturated MeCN/HO (1 : 1, v/v) solution under visible light irradiation. This Fe complex is state-of-the-art for CO visible-light-driven catalysis.
含有2,2':6',2'':6'',2''':6''',2''''-五吡啶（qnpy）配体的铁（II）配合物[Fe(qnpy)(HO)]，是乙腈水溶液中光催化将CO还原为CO的高效且稳定的催化剂。在可见光照射下，以Ru(phen)Cl（phen = 1,10-菲咯啉）作为光敏剂、BIH（1,3-二甲基-2-苯基-2,3-二氢-1H-苯并[d]咪唑）作为牺牲还原剂，在CO饱和的MeCN/HO（1∶1，v/v）溶液中，CO的转化数（TON）高达14095，选择性为98%。这种铁配合物是可见光驱动CO催化领域的前沿技术。
