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Weakly Associated TFPB Anions Are Superior to PF6 Anions When Preparing (Pseudo)Rotaxanes from Crown Ethers and Secondary Dialkylammonium Ions

Authors

  • Nai-Chia Chen,

    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 10617 (R.O.C.), Fax: (+886) 2-33661677
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  • Chun-Ju Chuang,

    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 10617 (R.O.C.), Fax: (+886) 2-33661677
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  • Liang-Yun Wang,

    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 10617 (R.O.C.), Fax: (+886) 2-33661677
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  • Prof. Chien-Chen Lai,

    1. Institute of Molecular Biology, National Chung Hsing University and Department of Medical Genetics, China Medical University Hospital, Taichung, Taiwan (R.O.C.)
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  • Prof. Sheng-Hsien Chiu

    Corresponding author
    1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 10617 (R.O.C.), Fax: (+886) 2-33661677
    • Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 10617 (R.O.C.), Fax: (+886) 2-33661677
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  • TFPB=Tetrakis(3,5-trifluoromethylphenyl)borate anion.

Abstract

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Making the right choice: Tetrakis(3,5-trifluoromethylphenyl)borate (TFPB) counter anions can facilitate the threading of dibenzylammonium (DBA+) ions through macrocycles in cases where the corresponding PF6 salts fail to exhibit complexation.

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