Luminescent Rhenium(I) Pyridyldiaminocarbene Complexes : Photophysics, Anion-Binding, and CO2-Capturing Properties

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

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Author(s)

  • Chi-On Ng
  • Shun-Cheung Cheng
  • Wing-Kin Chu
  • Kin-Man Tang
  • Shek-Man Yiu

Detail(s)

Original languageEnglish
Pages (from-to)7969-7979
Journal / PublicationInorganic Chemistry
Volume55
Issue number16
Publication statusPublished - 15 Aug 2016

Link(s)

Abstract

A series of luminescent isocyanorhenium(I) complexes with chelating acyclic diaminocarbene ligands (N^C) has been synthesized and characterized. Two of these carbene complexes have also been structurally characterized by X-ray crystallography. These complexes show blue-to-red phosphorescence, with the emission maxima not only considerably varied with a change in the number of ancillary isocyanide ligands but also extremely sensitive to the electronic and steric nature of the substituents on the acyclic diaminocarbene ligand. A detailed study with the support of density functional theory calculations revealed that the lowest-energy absorption and phosphorescence of these complexes in a degassed CH2Cl2 solution are derived from the predominantly metal-to-ligand charge-transfer [dπ(Re) → π∗(N^C)] excited state. The unprecedented anion-binding and CO2-capturing properties of the acyclic diaminocarbene have also been described.

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Citation Format(s)

Luminescent Rhenium(I) Pyridyldiaminocarbene Complexes : Photophysics, Anion-Binding, and CO2-Capturing Properties. / Ng, Chi-On; Cheng, Shun-Cheung; Chu, Wing-Kin et al.

In: Inorganic Chemistry, Vol. 55, No. 16, 15.08.2016, p. 7969-7979.

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

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