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

Namita Sharma, Jieun Jung, Kei Ohkubo, Yong Min Lee, Mohamed E. El-Khouly, Wonwoo Nam, Shunichi Fukuzumi

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Photoexcitation of a Mn IV -oxo complex binding scandium ions ([(Bn-TPEN)Mn IV (O)] 2+ -(Sc(OTf) 3 ) 2 ) in a solvent mixture of trifluoroethanol and acetonitrile (v/v = 1:1) resulted in formation of the long-lived photoexcited state, which can hydroxylate benzene to phenol. The photohydroxylation of benzene by [(Bn-TPEN)Mn IV (O)] 2+ -(Sc(OTf) 3 ) 2 was made possible by electron transfer from benzene to the long-lived 2 E excited state of [(Bn-TPEN)Mn IV (O)] 2+ -(Sc(OTf) 3 ) 2 to produce a benzene radical cation, which reacted with water as revealed by laser-induced transient absorption measurements.

Original languageEnglish
Pages (from-to)8405-8409
Number of pages5
JournalJournal of the American Chemical Society
Volume140
Issue number27
DOIs
StatePublished - 11 Jul 2018

Fingerprint

Dive into the research topics of 'Long-Lived Photoexcited State of a Mn(IV)-Oxo Complex Binding Scandium Ions That is Capable of Hydroxylating Benzene'. Together they form a unique fingerprint.

Cite this