Reversible structural flexibility and sensing properties of a Zn(II) metal-organic framework: Phase transformation between interpenetrating 3D net and 2D sheet

Yeonga Kim, Jeong Hwa Song, Woo Ram Lee, Won Ju Phang, Kwang Soo Lim, Chang Seop Hong

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A three-dimensional Zn(II) framework, [Zn4O(L) 3(DMF)2]·0.5DMF·H2O (1; H 2L = 3,3′-dimethoxybiphenyl-4,4′-dicarboxylic acid) was prepared under a solvothermal reaction in DMF. The structure reveals that the 3-fold interpenetration is stabilized in the framework with a distinct secondary building unit of the formula [Zn4O(R-CO2) 6(DMF)2], slightly different from that of MOF-5. Phase transformations in 1 occur reversibly via two pathways of solvent exchange/resolvation and activation/resolvation, which is indicative of the presence of extensive structural flexibility. Nitrobenzene among tested solvents is selectively detected by 1, and the sensing event was operating repeatedly. The three-dimensional framework of 1 with 3-fold interpenetration is uniquely converted to the two-dimensional Cu phase with no interpenetration, reflecting a drastic dimensionality variation.

Original languageEnglish
Pages (from-to)1933-1937
Number of pages5
JournalCrystal Growth and Design
Volume14
Issue number4
DOIs
Publication statusPublished - 2014 Apr 2

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phase transformations
flexibility
Phase transitions
Metals
Dicarboxylic Acids
Nitrobenzene
nitrobenzenes
dicarboxylic acids
metals
Ion exchange
Chemical activation
activation
Acids
3'-dimethylaminoflavone
nitrobenzene

ASJC Scopus subject areas

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

Cite this

Reversible structural flexibility and sensing properties of a Zn(II) metal-organic framework : Phase transformation between interpenetrating 3D net and 2D sheet. / Kim, Yeonga; Song, Jeong Hwa; Lee, Woo Ram; Phang, Won Ju; Lim, Kwang Soo; Hong, Chang Seop.

In: Crystal Growth and Design, Vol. 14, No. 4, 02.04.2014, p. 1933-1937.

Research output: Contribution to journalArticle

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