Direct Guest Exchange Induced Single-Crystal to Single-Crystal Transformation Accompanying Irreversible Crystal Expansion in Soft Porous Coordination Polymers

Tzu Yan Ho, Sheng Ming Huang, Jing Yun Wu, Kung-Chung Hsu, Kuang Lieh Lu

研究成果: 雜誌貢獻文章同行評審

16 引文 斯高帕斯(Scopus)

摘要

Two flexible porous coordination materials, [Mn(pybimc)2]·2H2O·G (G = toluene, 1tol; THF, 1thf), where pybimc = 2-(2′-pyridyl)-benzimidazole-5-carboxylate, featuring identical one-dimensional chain structure have been characterized. Guest exchange studies have exhibited that 1tol cannot be converted to 1thf through direct replacement of guest toluene molecules by THF molecules, but, of particular interest, 1thf is actually converted to 1tol and 1aromatic (where aromatic = o-, m-, p-xylene) upon the exchange of THF to toluene and other aromatic molecules, respectively. This signifies a single-crystal to single-crystal transformation accompanied irreversible crystal expansion. In-depth analyses reveal that the nature of the weak yet sufficiently strong framework-guest C-H···π interactions, rather than the guest size, observed in this system plays a key role in guiding the adsorption of liquid-phase aromatics in the soft crystalline materials. (Figure Presented).

原文英語
頁(從 - 到)4266-4271
頁數6
期刊Crystal Growth and Design
15
發行號9
DOIs
出版狀態已發佈 - 2015 九月 2

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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