Synthesis, structures, and properties of iridium(III) bis-cyclometallated complexes containing three-atom chelates

Wu Sian Sie; Jing Yu Jian; Tzu Chih Su; Gene Hsiang Lee; Hon Man Lee; Kom Bei Shiu

doi:10.1016/j.jorganchem.2007.12.009

Synthesis, structures, and properties of iridium(III) bis-cyclometallated complexes containing three-atom chelates

Wu Sian Sie, Jing Yu Jian, Tzu Chih Su, Gene Hsiang Lee, Hon Man Lee, Kom Bei Shiu

Department of Chemistry

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

Heating of [Ir(η²-ppy)₂(MeCN)₂]NO₃ (1, ppy = 2-phenylpyridine) in MeCN under reflux afforded [Ir(η²-ppy)₂(η²-NO₃)] (2). Treatment of 1 with 2-mercaptopyridine (Hmp), 6-methyl-2-hydroxypyridine (Hmhp), 6-chloro-2-hydroxypyridine (Hchp), trimethylacetic acid (Htma), benzoic acid (Hbz), 2-methylacrylic acid (Hma), and acetic acid (Hac) in the presence of excess Et₃N produced [Ir(η²-ppy)₂(η²-XZY)] (XZY^- = mp^- (3), mhp^- (4), chp^- (5), ac^- (6), bz^- (7), ma^- (8), tma^- (9)). Crystal structures of 2, 3, 7, 8, and 9 have been characterized by X-ray diffraction. The inherent strain contained in the four-member rings, {Ir(η²-XZY)}, is apparently reflected in the long Ir-X and Ir-Y distances. The absorption and emission properties of nearly all the new complexes except 2 show small variations.

Original language	English
Pages (from-to)	1510-1517
Number of pages	8
Journal	Journal of Organometallic Chemistry
Volume	693
Issue number	8-9
DOIs	https://doi.org/10.1016/j.jorganchem.2007.12.009
Publication status	Published - 2008 Apr 15

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All Science Journal Classification (ASJC) codes

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

Cite this

Sie, W. S., Jian, J. Y., Su, T. C., Lee, G. H., Lee, H. M., & Shiu, K. B. (2008). Synthesis, structures, and properties of iridium(III) bis-cyclometallated complexes containing three-atom chelates. Journal of Organometallic Chemistry, 693(8-9), 1510-1517. https://doi.org/10.1016/j.jorganchem.2007.12.009

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title = "Synthesis, structures, and properties of iridium(III) bis-cyclometallated complexes containing three-atom chelates",

abstract = "Heating of [Ir(η2-ppy)2(MeCN)2]NO3 (1, ppy = 2-phenylpyridine) in MeCN under reflux afforded [Ir(η2-ppy)2(η2-NO3)] (2). Treatment of 1 with 2-mercaptopyridine (Hmp), 6-methyl-2-hydroxypyridine (Hmhp), 6-chloro-2-hydroxypyridine (Hchp), trimethylacetic acid (Htma), benzoic acid (Hbz), 2-methylacrylic acid (Hma), and acetic acid (Hac) in the presence of excess Et3N produced [Ir(η2-ppy)2(η2-XZY)] (XZY- = mp- (3), mhp- (4), chp- (5), ac- (6), bz- (7), ma- (8), tma- (9)). Crystal structures of 2, 3, 7, 8, and 9 have been characterized by X-ray diffraction. The inherent strain contained in the four-member rings, {Ir(η2-XZY)}, is apparently reflected in the long Ir-X and Ir-Y distances. The absorption and emission properties of nearly all the new complexes except 2 show small variations.",

author = "Sie, {Wu Sian} and Jian, {Jing Yu} and Su, {Tzu Chih} and Lee, {Gene Hsiang} and Lee, {Hon Man} and Shiu, {Kom Bei}",

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T1 - Synthesis, structures, and properties of iridium(III) bis-cyclometallated complexes containing three-atom chelates

AU - Sie, Wu Sian

AU - Jian, Jing Yu

AU - Su, Tzu Chih

AU - Lee, Gene Hsiang

AU - Lee, Hon Man

AU - Shiu, Kom Bei

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N2 - Heating of [Ir(η2-ppy)2(MeCN)2]NO3 (1, ppy = 2-phenylpyridine) in MeCN under reflux afforded [Ir(η2-ppy)2(η2-NO3)] (2). Treatment of 1 with 2-mercaptopyridine (Hmp), 6-methyl-2-hydroxypyridine (Hmhp), 6-chloro-2-hydroxypyridine (Hchp), trimethylacetic acid (Htma), benzoic acid (Hbz), 2-methylacrylic acid (Hma), and acetic acid (Hac) in the presence of excess Et3N produced [Ir(η2-ppy)2(η2-XZY)] (XZY- = mp- (3), mhp- (4), chp- (5), ac- (6), bz- (7), ma- (8), tma- (9)). Crystal structures of 2, 3, 7, 8, and 9 have been characterized by X-ray diffraction. The inherent strain contained in the four-member rings, {Ir(η2-XZY)}, is apparently reflected in the long Ir-X and Ir-Y distances. The absorption and emission properties of nearly all the new complexes except 2 show small variations.

AB - Heating of [Ir(η2-ppy)2(MeCN)2]NO3 (1, ppy = 2-phenylpyridine) in MeCN under reflux afforded [Ir(η2-ppy)2(η2-NO3)] (2). Treatment of 1 with 2-mercaptopyridine (Hmp), 6-methyl-2-hydroxypyridine (Hmhp), 6-chloro-2-hydroxypyridine (Hchp), trimethylacetic acid (Htma), benzoic acid (Hbz), 2-methylacrylic acid (Hma), and acetic acid (Hac) in the presence of excess Et3N produced [Ir(η2-ppy)2(η2-XZY)] (XZY- = mp- (3), mhp- (4), chp- (5), ac- (6), bz- (7), ma- (8), tma- (9)). Crystal structures of 2, 3, 7, 8, and 9 have been characterized by X-ray diffraction. The inherent strain contained in the four-member rings, {Ir(η2-XZY)}, is apparently reflected in the long Ir-X and Ir-Y distances. The absorption and emission properties of nearly all the new complexes except 2 show small variations.

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10.1016/j.jorganchem.2007.12.009