Long-Lived Photoexcited State of a Mn(IV)-Oxo Complex Binding Scandium Ions That is Capable of Hydroxylating Benzene

被引：38
作者：
Sharma, Namita [1 ]
Jung, Jieun [1 ,2 ]
Ohkubo, Kei [1 ,3 ,4 ]
Lee, Yong-Min [1 ]
El-Khouly, Mohamed E. [1 ,5 ]
Nam, Wonwoo [1 ,6 ]
Fukuzumi, Shunichi [1 ,7 ]
机构：
[1] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea
[2] Nagoya Univ, Grad Sch Sci, Dept Chem, Chikusa Ku, Nagoya, Aichi 4648602, Japan
[3] Osaka Univ, Inst Adv Cocreat Studies, Suita, Osaka 5650871, Japan
[4] Osaka Univ, Open & Transdisciplinary Res Initiat, Suita, Osaka 5650871, Japan
[5] Kafrelsheikh Univ, Fac Sci, Dept Chem, Kafrelsheikh 33516, Egypt
[6] Shaanxi Normal Univ, Sch Chem & Chem Engn, Xian 710119, Shaanxi, Peoples R China
[7] Meijo Univ, Japan Sci & Technol Agcy JST, SENTAN, Fac Sci & Engn, Nagoya, Aichi 4680073, Japan
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2018年 / 140卷 / 27期
基金：
日本科学技术振兴机构;
关键词：
NONHEME MANGANESE(IV)-OXO COMPLEXES; LIGHT-EMITTING-DIODES; TRANSITION-METAL-COMPLEXES; COUPLED ELECTRON-TRANSFER; IRON(IV)-OXO COMPLEX; WATER OXIDATION; PHOTOSYSTEM-II; OXO COMPLEXES; ATOM-TRANSFER; REACTIVITY;
D O I：
10.1021/jacs.8b04904
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Photoexcitation of a Mn-IV-oxo complex binding scandium ions ([(Bn-TPEN)Mn-IV(O)](2+)-(Sc-(OTf3)(2)) in a solvent mixture of trifluoroethanol and acetonitrile (v/v = 1:1) resulted in formation of the longlived photoexcited state, which can hydroxylate benzene to phenol. The photohydroxylation of benzene by [(Bn-TPEN)Mn-IV(O)](2+)-(Sc(OTf3)(2) was made possible by electron transfer from benzene to the long-lived E-2 excited state of [(Bn-TPEN)Mn-IV(O)](2+)-(Sc(OTf3)(2) to produce a benzene radical cation, which reacted with water as revealed by laser-induced transient absorption measurements.
引用
收藏
页码：8405 / 8409
页数：5
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