Photochemical nitrogenation of alkanes and arenes by a strongly luminescent osmium(VI) nitrido complex

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jing Xiang
  • Xin-Xin Jin
  • Qian-Qian Su
  • Shun-Cheung Cheng
  • Wai-Lun Man
  • Minying Xue
  • Liangliang Wu
  • Chi-Ming Che

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number40
Journal / PublicationCOMMUNICATIONS CHEMISTRY
Volume2
Online published29 Mar 2019
Publication statusPublished - 2019

Link(s)

Abstract

The search for a highly active nitrido complex that can transfer its nitrogen atom to inert organic molecules remains a challenge to chemists. In this regard, the use of solar energy to generate a reactive nitrido species is an appealing strategy to solve this problem. Here we report the design of a strongly luminescent osmium(VI) nitrido compound, [Os-VI(N) (NO2-L) (CN)3]- (NO2-OsN) with emission quantum yield (φ) and life time (τ) of 3.0% and 0.48 μs, respectively in dichloromethane solution. Upon irradiation with visible light, this complex readily activates the aliphatic C-H bonds of various hydrocarbons, including alkanes. The excited state of NO2-OsN can undergo ring-nitrogenation of arenes, including benzene. Photophysical and computational studies suggest that the excited state of NO2-OsN arises from OˆN ligand to Os ≡ N charge transfer transitions, and as a result it possesses [Os = N] nitridyl character and is highly electrophilic.

Research Area(s)

  • C-H ACTIVATION, EXCITED-STATE, NITRIDOOSMIUM(VI) COMPLEXES, IMIDO COMPLEXES, SCHIFF-BASE, REACTIVITY, OXIDATION, PHOTOLYSIS, TETRACYANIDONITRIDORHENIUM(V), AMINATION

Citation Format(s)

Photochemical nitrogenation of alkanes and arenes by a strongly luminescent osmium(VI) nitrido complex. / Xiang, Jing; Jin, Xin-Xin; Su, Qian-Qian; Cheng, Shun-Cheung; Ko, Chi-Chiu; Man, Wai-Lun; Xue, Minying; Wu, Liangliang; Che, Chi-Ming; Lau, Tai-Chu.

In: COMMUNICATIONS CHEMISTRY, Vol. 2, 40, 2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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