Synthesis, Spectroscopic and Computational Studies of Rhodium(III) Complexes Bearing N-Heterocyclic Carbene-Based C^N^C Pincer Ligand and Bipyridine/Terpyridine

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

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Detail(s)

Original languageEnglish
Pages (from-to)2343-2351
Number of pages9
Journal / PublicationEuropean Journal of Inorganic Chemistry
Volume2020
Issue number24
Online published15 May 2020
Publication statusPublished - 30 Jun 2020

Abstract

Rhodium(III) complexes containing tridentate N-heterocyclic carbene (NHC)-based pincer ligand in the form of [Rh(C^N^C)(N^N)X]2+ and [Rh(C^N^C)(tpy)]3+ (C^N^C = (2,6-bis(1-butylimidazol-2-ylidene)pyridine (C1^N^C1) or 2,6-bis(3-butylbenzimidazol-2-ylidene)pyridine (C2^N^C2); N^N = bipyridine-type aromatic diimines; tpy = 2,2':6',2''-terpyridine; X = Cl or Br) were prepared. Spectroscopic comparisons and time-dependent density functional theory (TD-DFT) calculations revealed the lowest-energy electronic transition associated with these complexes are different from their Ru(II), Os(II) and Ir(III) analogues. The Rh(III) complexes exhibit luminescent behavior at 77 K upon photoexcitation. The impact of the C^N^C pincer ligands on the photophysics of the Rh(III) complexes was investigated.

Research Area(s)

  • DFT calculations, Photophysics, Pincer ligand, Rhodium

Citation Format(s)

Synthesis, Spectroscopic and Computational Studies of Rhodium(III) Complexes Bearing N-Heterocyclic Carbene-Based C^N^C Pincer Ligand and Bipyridine/Terpyridine. / Io, Kai-Wa; Ng, Sze-Wing; Yeung, Chi-Fung; Wong, Chun-Yuen.

In: European Journal of Inorganic Chemistry, Vol. 2020, No. 24, 30.06.2020, p. 2343-2351.

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