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Variable Photophysical Properties of Phosphorescent Iridium(III) Complexes Triggered by closo- and nido-Carborane Substitution

Authors

  • Chao Shi,

    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093 (China)
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  • Huibin Sun,

    1. Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)
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  • Xiao Tang,

    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093 (China)
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  • Wen Lv,

    1. Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)
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  • Prof. Dr. Hong Yan,

    Corresponding author
    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093 (China)
    • Hong Yan, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093 (China)===

      Qiang Zhao, Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)===

      Wei Huang, Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)===

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  • Qiang Zhao,

    Corresponding author
    1. Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)
    • Hong Yan, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093 (China)===

      Qiang Zhao, Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)===

      Wei Huang, Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)===

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  • Jingxia Wang,

    1. Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)
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  • Wei Huang

    Corresponding author
    1. Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)
    • Hong Yan, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093 (China)===

      Qiang Zhao, Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)===

      Wei Huang, Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023 (P.R. China)===

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  • The financial support from the National Natural Science Foundation of China (20925104, 21171098, 21271102), the Major State Basic Research Development Program of China (2013CB922100 and 2010CB923303), and high-performance computational center of Nanjing University is acknowledged.

Abstract

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Phosphorescent iridium(III) complexes with three bidentate carborane-functionalized ligands have been synthesized. The luminescent efficiency of the o-carborane-based facial complex fac-o shows solvent-molecule dependence both in solution and solid state that is related to the dielectric constant. The water-soluble and high phosphorescence-efficient nido complex nido-fac-o can be used in fluorescence lifetime bioimaging.

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