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Enhancing order and porosity in a highly robust tin(IV) triphosphonate framework.

Authors
  • Mah, Roger K
  • Lui, Melanie W
  • Shimizu, George K H
Type
Published Article
Journal
Inorganic Chemistry
Publisher
American Chemical Society
Publication Date
Jul 01, 2013
Volume
52
Issue
13
Pages
7311–7313
Identifiers
DOI: 10.1021/ic400274e
PMID: 23768095
Source
Medline
License
Unknown

Abstract

Metal organic frameworks (MOFs) are noted for crystallinity, stability, and porosity. For many industrial challenges though, beyond stability to pore activation, porous materials require high thermal and moisture stability. Here, we report a Sn(IV) triphosphonate framework, CALF-28, that is highly robust and porous. CALF-28 was designed based on the known structure of a divalent metal phosphonate that was 2-fold interpenetrated. It has strong sustaining interactions but consequently rapidly precipitates, compromising crystallinity. Using methods to enhance order, and by analogy to the M(II) analogue, insights to the structure are ascertained and corroborated by PXRD and gas sorption analysis. CALF-28 has a surface area >500 m(2)/g and is stable in water.

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