Near-Infrared Phosphorescent Iridium(III) Benzonorrole Complexes Possessing Pyridine-based Axial Ligands

Yogesh Kumar Maurya, Takahiro Ishikawa, Yasunori Kawabe, Masatoshi Ishida, Motoki Toganoh, Shigeki Mori, Yuhsuke Yasutake, Susumu Fukatsu, Hiroyuki Furuta

Research output: Contribution to journalArticle

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Abstract

Novel near-infrared phosphorescent iridium(III) complexes based on benzo-Annulated N-linked corrole analogue (termed as benzonorrole) were synthesized. The structures of the complexes revealed octahedral coordination geometries involving an organometallic iridium-carbon bond with two external axial ligands. Interestingly, the iridium(III) complex exhibits near-infrared phosphorescence at room temperature at wavelengths beyond 900 nm. The significant redshift of the emission, as compared to the corrole congener, is originated from the ligand-centered triplet character. The fine-Tuning of the photophysical properties of the complexes was achieved by introducing electron-donating and electron-withdrawing substituents on the axial pyridine ligands.

Original languageEnglish
Pages (from-to)6223-6230
Number of pages8
JournalInorganic chemistry
Volume55
Issue number12
DOIs
Publication statusPublished - Jun 20 2016

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Iridium
iridium
pyridines
Ligands
Infrared radiation
ligands
congeners
Phosphorescence
Electrons
Organometallics
phosphorescence
electrons
Carbon
Tuning
tuning
analogs
Wavelength
Geometry
carbon
room temperature

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Near-Infrared Phosphorescent Iridium(III) Benzonorrole Complexes Possessing Pyridine-based Axial Ligands. / Maurya, Yogesh Kumar; Ishikawa, Takahiro; Kawabe, Yasunori; Ishida, Masatoshi; Toganoh, Motoki; Mori, Shigeki; Yasutake, Yuhsuke; Fukatsu, Susumu; Furuta, Hiroyuki.

In: Inorganic chemistry, Vol. 55, No. 12, 20.06.2016, p. 6223-6230.

Research output: Contribution to journalArticle

Maurya, Yogesh Kumar ; Ishikawa, Takahiro ; Kawabe, Yasunori ; Ishida, Masatoshi ; Toganoh, Motoki ; Mori, Shigeki ; Yasutake, Yuhsuke ; Fukatsu, Susumu ; Furuta, Hiroyuki. / Near-Infrared Phosphorescent Iridium(III) Benzonorrole Complexes Possessing Pyridine-based Axial Ligands. In: Inorganic chemistry. 2016 ; Vol. 55, No. 12. pp. 6223-6230.
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AU - Kawabe, Yasunori

AU - Ishida, Masatoshi

AU - Toganoh, Motoki

AU - Mori, Shigeki

AU - Yasutake, Yuhsuke

AU - Fukatsu, Susumu

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