Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes

Li Lan Wu; I. Wen Sun; Cheng Hsien Yang

doi:10.1016/j.poly.2007.01.030

Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes

Li Lan Wu, I. Wen Sun, Cheng Hsien Yang

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Some new heteroleptic tris-cyclometallated iridium(III) complexes have been synthesized and fully characterized. Among these iridium(III) complexes, bis(1-phenylpyrazolato-N,C^2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (3) and bis(3-methyl-1-phenylpyrazolato-N,C^2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (4) show excellent quantum yields at room temperature, the electron density being perturbed by introducing the pyridyltetrazole ligand, making k_r > k_nr. This destroys the concept of phenylpyrazole based iridium complexes.

Original language	English
Pages (from-to)	2679-2685
Number of pages	7
Journal	Polyhedron
Volume	26
Issue number	12
DOIs	https://doi.org/10.1016/j.poly.2007.01.030
Publication status	Published - 2007 Jul 23

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2007.01.030

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title = "Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes",

abstract = "Some new heteroleptic tris-cyclometallated iridium(III) complexes have been synthesized and fully characterized. Among these iridium(III) complexes, bis(1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (3) and bis(3-methyl-1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (4) show excellent quantum yields at room temperature, the electron density being perturbed by introducing the pyridyltetrazole ligand, making kr > knr. This destroys the concept of phenylpyrazole based iridium complexes.",

author = "Wu, {Li Lan} and Sun, {I. Wen} and Yang, {Cheng Hsien}",

note = "Funding Information: This work was supported by the National Science Council of Republic of China, Taiwan (NSC 94-2113-M-006-017). ",

year = "2007",

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doi = "10.1016/j.poly.2007.01.030",

language = "English",

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T1 - Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes

AU - Wu, Li Lan

AU - Sun, I. Wen

AU - Yang, Cheng Hsien

N1 - Funding Information: This work was supported by the National Science Council of Republic of China, Taiwan (NSC 94-2113-M-006-017).

PY - 2007/7/23

Y1 - 2007/7/23

N2 - Some new heteroleptic tris-cyclometallated iridium(III) complexes have been synthesized and fully characterized. Among these iridium(III) complexes, bis(1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (3) and bis(3-methyl-1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (4) show excellent quantum yields at room temperature, the electron density being perturbed by introducing the pyridyltetrazole ligand, making kr > knr. This destroys the concept of phenylpyrazole based iridium complexes.

AB - Some new heteroleptic tris-cyclometallated iridium(III) complexes have been synthesized and fully characterized. Among these iridium(III) complexes, bis(1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (3) and bis(3-methyl-1-phenylpyrazolato-N,C2′)iridium(III)[5-(2′-pyridyl)tetrazolate] (4) show excellent quantum yields at room temperature, the electron density being perturbed by introducing the pyridyltetrazole ligand, making kr > knr. This destroys the concept of phenylpyrazole based iridium complexes.

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DO - 10.1016/j.poly.2007.01.030

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SP - 2679

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JO - Polyhedron

JF - Polyhedron

IS - 12

ER -

Photophysical and electrochemical properties of heteroleptic tris-cyclometallated Ir(III) complexes

Abstract

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