Molecular sieving and thin film transport by molecular materials featuring large component cavities

Junlian Zhang, Mary E. Williams, Melinda H. Keefe, Greg A. Morris, SonBinh B T Nguyen, Joseph T Hupp

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The electrochemically measured sieving and transport properties for two new thin film materials composed of molecular squares featuring exceptionally large cavities, a salen-based zinc square 2 (23 Å metal to metal separation distance) and a porphyrin-based zinc square 1 (24 Å metal to metal separation distance) are described. Both materials are exceptionally porous with respect to smaller molecules but blocking toward larger permeants (i.e., those larger than the square cavities). Electrochemical experiments reveal that the size cutoff for molecular sieving can be modified by incorporating difunctional ligands within the square cavity responsible for the observed porosity.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume5
Issue number5
DOIs
Publication statusPublished - May 2002

Fingerprint

Metals
Thin films
cavities
thin films
metals
Zinc
zinc
Porphyrins
porphyrins
Transport properties
cut-off
Porosity
transport properties
Ligands
porosity
ligands
Molecules
molecules
Experiments

ASJC Scopus subject areas

  • Electrochemistry
  • Materials Science(all)

Cite this

Molecular sieving and thin film transport by molecular materials featuring large component cavities. / Zhang, Junlian; Williams, Mary E.; Keefe, Melinda H.; Morris, Greg A.; Nguyen, SonBinh B T; Hupp, Joseph T.

In: Electrochemical and Solid-State Letters, Vol. 5, No. 5, 05.2002.

Research output: Contribution to journalArticle

Zhang, Junlian ; Williams, Mary E. ; Keefe, Melinda H. ; Morris, Greg A. ; Nguyen, SonBinh B T ; Hupp, Joseph T. / Molecular sieving and thin film transport by molecular materials featuring large component cavities. In: Electrochemical and Solid-State Letters. 2002 ; Vol. 5, No. 5.
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