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Volumn 22, Issue 4, 2006, Pages 1804-1809

Liquid/liquid interface polymerized porphyrin membranes displaying size-selective molecular and ionic permeability

Author keywords

[No Author keywords available]

Indexed keywords

LIQUID/LIQUID INTERFACES; MOLECULAR AND IONIC PERMEABILITY; SUBSTITUENTS; TETRAPHENYLPORPHYRIN DERIVATIVES;

EID: 33644604874     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la052153b     Document Type: Article
Times cited : (7)

References (19)
  • 6
    • 0024698947 scopus 로고
    • Murray and co-workers have reported on the synthesis and molecular permeability of electrode-supported films obtained via oxidative electropolymerization of tetra(ortho-aminophenyl)porphyrin species. See, for example: Pressprich, K. A.; Maybury, S. G.; Thomas, R. E.; Linton, R. W.; Irene, E. A.; Murray, R. W. J. Phys. Chem. 1989, 93, 5568-5574.
    • (1989) J. Phys. Chem. , vol.93 , pp. 5568-5574
    • Pressprich, K.A.1    Maybury, S.G.2    Thomas, R.E.3    Linton, R.W.4    Irene, E.A.5    Murray, R.W.6
  • 10
    • 33644597082 scopus 로고    scopus 로고
    • note
    • Wamser and co-workers suggest, on the basis of cell resistance measurements, that the films described in ref 8 are permeable to electrolyte solutions. Using the electrochemical methodology described below, however, we find these films to be completely blocking toward the smallest redox probe salt examined, sodium iodide. Nevertheless, under certain conditions, with thinner films than described here, we do observe electrochemical responses from probe ions and molecules. The responses are both large and insensitive to probe size, indicating that probes reach the electrode by passing through film physical defects (probably tears), rather than by permeating the film material itself. We suggest that physical defects similarly might well account for the reported low cell resistances.
  • 14
    • 33644607700 scopus 로고    scopus 로고
    • note
    • This value represents measured distances between Fe and the center of a cyclopentadienyl (cp) ring from structures in the Cambridge Database plus one van der Waals carbon radius. The actual radius could be slightly larger depending on the orientation of methanol substituent.
  • 19
    • 33644591397 scopus 로고    scopus 로고
    • note
    • Multiple attempts were made to remove the benzimidazole, including soaking the electrode-supported membrane in pure acetonitrile and in 10% perchloric acid. Neither approach removed the benzimidazole, and higher concentrations of acid dissolved the membrane. The persistence of ligand binding in the film environment, although difficult to explain, has been encountered previously; see ref 17.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.