4.8 Article

An Exceptionally Stable, Porphyrinic Zr Metal-Organic Framework Exhibiting pH-Dependent Fluorescence

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 37, Pages 13934-13938

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja406844r

Keywords

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Funding

  1. Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center
  2. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001015]
  3. National Natural Science Foundation of China [21371162, 51301159]
  4. University of Science and Technology of China (USTC)
  5. NSF [DBI-0116835]

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A reaction between a Zr-IV salt and a porphyrinic tetracarboxylic acid leads to a metal-organic framework (MOF) with two types of open channels, representing a MOF featuring a (4,8)-connected sqc net. The MOF remains intact in both boiling water and aqueous solutions with pH ranging from 1 to 11, a remarkably extensive pH range that a MOF can sustain. Given its exceptional stability and pH-dependent fluorescent intensity, the MOF can potentially be applied in fluorescent sensing.

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