Dynamic [2]Catenation of Pd(II) Self-assembled Macrocycles in Water

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著者

    • LIM Choon Woo
    • Graduate School of East-West Medical Science, Kyung Hee University
    • KIM Tae Woo
    • Graduate School of East-West Medical Science, Kyung Hee University

抄録

A catenated structure is formed through dynamic self-assembly of 1,3-bis(4-pyridyloxy)propane and cis-protected Pd(II) metal with ethylenediamine in water. <sup>1</sup>H NMR spectra have revealed that the formation of [2]catenane is dependent on the concentration of macrocyclic ring. We have performed the structural analysis of macrocyclic ring and [2]catenane using H–H COSY and ESI MS. The dynamic process of the catenation has been elucidated by van’t Hoff plot and the formation of [2]catenane is enthalpically favored in D<sub>2</sub>O, strongly suggesting the hydrophobic interactions for the formation of [2]catenane. Diffusion-ordered NMR spectroscopy (DOSY) distinguishes between dinuclear self-assembled macrocyclic ring and [2]catenane, indicating that [2]catenanes diffuse slower than macrocyclic rings in D<sub>2</sub>O.

収録刊行物

  • Chemistry letters

    Chemistry letters 41(1), 70-72, 2012-01-05

    公益社団法人 日本化学会

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各種コード

  • NII論文ID(NAID)
    10030222484
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    03667022
  • データ提供元
    CJP書誌  J-STAGE 
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