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Issue 12, 2004
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ZnII-induced conformational control of amphiphilic cavitands in Langmuir monolayers

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Abstract

The reversible switching from the C4v-symmetric vase to the C2v-symmetric kite conformation of an amphiphilic resorcin[4]arene cavitand was induced by ZnII ion coordination. Langmuir monolayers were obtained of both conformers with the area per molecule increasing dramatically from 120 Å2 for the vase to 270 Å2 for the kite form. 1H NMR spectroscopy in chloroform solution supports the formation of a stoichiometric kite-cavitand˙(ZnII)2 complex, with the metal ions coordinating to pairs of neighbouring quinoxaline N-atoms.

Graphical abstract: ZnII-induced conformational control of amphiphilic cavitands in Langmuir monolayers

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Publication details

The article was received on 08 Apr 2004, accepted on 06 May 2004 and first published on 18 May 2004


Article type: Communication
DOI: 10.1039/B405331A
Citation: Chem. Commun., 2004,0, 1362-1363
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    ZnII-induced conformational control of amphiphilic cavitands in Langmuir monolayers

    M. Frei, F. Marotti and F. Diederich, Chem. Commun., 2004, 0, 1362
    DOI: 10.1039/B405331A

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