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A Copper(II) Molecular Catalyst for Efficient and Selective Photochemical Reduction of CO 2 to CO in a Water‐Containing System
Author(s) -
Liu WenJu,
Huang HaiHua,
Ouyang Ting,
Jiang Long,
Zhong DiChang,
Zhang Wen,
Lu TongBu
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201705566
Subject(s) - catalysis , acetonitrile , chemistry , photosensitizer , copper , photocatalysis , selectivity , photochemistry , visible spectrum , materials science , organic chemistry , optoelectronics
A catalyst developed from a Cu II complex of (Et 4 N)[Cu(pyN 2 Me2 )(HCO 2 )]⋅0.5 CH 3 OH⋅H 2 O ( 1 ⋅0.5 CH 3 OH⋅H 2 O; pyN 2 Me2 =bis(2,6‐dimethylphenyl)‐2,6‐pyridinedicarboxamidate(2‐)) shows a high activity to catalyze the reduction reaction of CO 2 to CO driven by visible light in 4:1 acetonitrile/water ( v : v ) using [Ru(phen) 3 ](PF 6 ) 2 as photosensitizer and TEOA as sacrificial reductant, with a high TON of 9900 and a high CO selectivity of 98 %. The results of isotope labeling experiment, durability tests and energy dispersive spectroscopy reveal that 1 is robust during the photocatalytic process.