Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates

Shih Han Chang, Chun Fu Chang, Jia Ling Liao, Yun Chi, Dong Ying Zhou, Liang Sheng Liao, Tzung Ying Jiang, Tsao Pei Chou, Elise Y. Li, Gene Hsiang Lee, Ting Yi Kuo, Pi Tai Chou

研究成果: 雜誌貢獻文章

36 引文 (Scopus)

摘要

A tetradentate bis(pyridylpyrazolate) chelate, L, is assembled by connecting two bidentate 3-(trifluoromethyl)-5-(2-pyridyl)pyrazole chelates at the 6 position of the pyridyl fragment with a phenylamido appendage. This chelate was then utilized in the synthesis of three osmium(II) complexes, namely, [Os(L)(CO)2] (4), [Os(L)(PPh2Me)2] (5), and [Os(L)(PPhMe2)2] (6). Single-crystal X-ray structural analyses were executed on 4 and 5 to reveal the bonding arrangement of the L chelate. Phosphine-substituted derivatives 5 and 6 are highly emissive in both solution and the solid state, and their photophysical properties were measured and discussed on the basis of computational approaches. For application, fabrication and analysis of organic light-emitting diodes (OLEDs) were also carried out. The OLEDs using 5 and 6 as dopants exhibit saturated red emission with maximum external quantum efficiencies of 9.8% and 9.4%, respectively, which are higher than that of the device using [Ir(piq)3] as a red-emitting reference sample. Moreover, for documentation, 5 and 6 also achieve a maximum brightness of 19540 cd·m-2 at 800 mA·cm -2 (11.6 V) and 12900 cd·m-2 at 500 mA·cm-2 (10.5 V), respectively.

原文英語
頁(從 - 到)5867-5875
頁數9
期刊Inorganic Chemistry
52
發行號10
DOIs
出版狀態已發佈 - 2013 五月 20

指紋

Osmium
phosphine
osmium
Organic light emitting diodes (OLED)
chelates
Light
Carbon Monoxide
Quantum efficiency
Documentation
Luminance
light emitting diodes
Doping (additives)
X-Rays
Single crystals
appendages
Derivatives
Fabrication
X rays
Equipment and Supplies
documentation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

引用此文

Chang, S. H., Chang, C. F., Liao, J. L., Chi, Y., Zhou, D. Y., Liao, L. S., ... Chou, P. T. (2013). Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates. Inorganic Chemistry, 52(10), 5867-5875. https://doi.org/10.1021/ic302829e

Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates. / Chang, Shih Han; Chang, Chun Fu; Liao, Jia Ling; Chi, Yun; Zhou, Dong Ying; Liao, Liang Sheng; Jiang, Tzung Ying; Chou, Tsao Pei; Li, Elise Y.; Lee, Gene Hsiang; Kuo, Ting Yi; Chou, Pi Tai.

於: Inorganic Chemistry, 卷 52, 編號 10, 20.05.2013, p. 5867-5875.

研究成果: 雜誌貢獻文章

Chang, SH, Chang, CF, Liao, JL, Chi, Y, Zhou, DY, Liao, LS, Jiang, TY, Chou, TP, Li, EY, Lee, GH, Kuo, TY & Chou, PT 2013, 'Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates', Inorganic Chemistry, 卷 52, 編號 10, 頁 5867-5875. https://doi.org/10.1021/ic302829e
Chang SH, Chang CF, Liao JL, Chi Y, Zhou DY, Liao LS 等. Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates. Inorganic Chemistry. 2013 5月 20;52(10):5867-5875. https://doi.org/10.1021/ic302829e
Chang, Shih Han ; Chang, Chun Fu ; Liao, Jia Ling ; Chi, Yun ; Zhou, Dong Ying ; Liao, Liang Sheng ; Jiang, Tzung Ying ; Chou, Tsao Pei ; Li, Elise Y. ; Lee, Gene Hsiang ; Kuo, Ting Yi ; Chou, Pi Tai. / Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates. 於: Inorganic Chemistry. 2013 ; 卷 52, 編號 10. 頁 5867-5875.
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abstract = "A tetradentate bis(pyridylpyrazolate) chelate, L, is assembled by connecting two bidentate 3-(trifluoromethyl)-5-(2-pyridyl)pyrazole chelates at the 6 position of the pyridyl fragment with a phenylamido appendage. This chelate was then utilized in the synthesis of three osmium(II) complexes, namely, [Os(L)(CO)2] (4), [Os(L)(PPh2Me)2] (5), and [Os(L)(PPhMe2)2] (6). Single-crystal X-ray structural analyses were executed on 4 and 5 to reveal the bonding arrangement of the L chelate. Phosphine-substituted derivatives 5 and 6 are highly emissive in both solution and the solid state, and their photophysical properties were measured and discussed on the basis of computational approaches. For application, fabrication and analysis of organic light-emitting diodes (OLEDs) were also carried out. The OLEDs using 5 and 6 as dopants exhibit saturated red emission with maximum external quantum efficiencies of 9.8{\%} and 9.4{\%}, respectively, which are higher than that of the device using [Ir(piq)3] as a red-emitting reference sample. Moreover, for documentation, 5 and 6 also achieve a maximum brightness of 19540 cd·m-2 at 800 mA·cm -2 (11.6 V) and 12900 cd·m-2 at 500 mA·cm-2 (10.5 V), respectively.",
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T1 - Emissive osmium(II) complexes with tetradentate bis(pyridylpyrazolate) chelates

AU - Chang, Shih Han

AU - Chang, Chun Fu

AU - Liao, Jia Ling

AU - Chi, Yun

AU - Zhou, Dong Ying

AU - Liao, Liang Sheng

AU - Jiang, Tzung Ying

AU - Chou, Tsao Pei

AU - Li, Elise Y.

AU - Lee, Gene Hsiang

AU - Kuo, Ting Yi

AU - Chou, Pi Tai

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AB - A tetradentate bis(pyridylpyrazolate) chelate, L, is assembled by connecting two bidentate 3-(trifluoromethyl)-5-(2-pyridyl)pyrazole chelates at the 6 position of the pyridyl fragment with a phenylamido appendage. This chelate was then utilized in the synthesis of three osmium(II) complexes, namely, [Os(L)(CO)2] (4), [Os(L)(PPh2Me)2] (5), and [Os(L)(PPhMe2)2] (6). Single-crystal X-ray structural analyses were executed on 4 and 5 to reveal the bonding arrangement of the L chelate. Phosphine-substituted derivatives 5 and 6 are highly emissive in both solution and the solid state, and their photophysical properties were measured and discussed on the basis of computational approaches. For application, fabrication and analysis of organic light-emitting diodes (OLEDs) were also carried out. The OLEDs using 5 and 6 as dopants exhibit saturated red emission with maximum external quantum efficiencies of 9.8% and 9.4%, respectively, which are higher than that of the device using [Ir(piq)3] as a red-emitting reference sample. Moreover, for documentation, 5 and 6 also achieve a maximum brightness of 19540 cd·m-2 at 800 mA·cm -2 (11.6 V) and 12900 cd·m-2 at 500 mA·cm-2 (10.5 V), respectively.

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