Authors: Yannick Tauran Moez Rhimi Ryohei Ueno Marie Grosso Arnaud Brioude Erwann Janneau Kinga Suwinska Rima Kassab Patrick Shahgaldian Alessandro Cumbo Bernard Fenet Beomjoon Kim Anthony W Coleman
Publish Date: 2012/10/04
Volume: 77, Issue: 1-4, Pages: 213-221
Abstract
The molecular recognition by parasulphonatocalix4arene of cytosine occurs in solution in the solidstate and by assembly on the surface of parasulphonatocalix4arene capped silver nanoparticles Each of these states shows different modes of assembly in solution a 11 complex is formed in the solid state a 41 assembly exists however some of the cytosine molecules are present as space fillers and do not participate in the host guest complexes finally on the surface of the hybrid silver/parasulphonatocalix4arene nanoparticles a 21 cytosine/parasulphonatocalix4arene assembly is observed The assembly processes have been studied by DOSY NMR fluorescence spectroscopy Dynamic Light Scattering DLS Single Crystal Solid State Diffraction Visible Spectroscopy and Electron Microscopy The results demonstrate how cytosine initiates the aggregation of the hybrid silver/parasulphonatocalix4arene hybrid nanoparticles
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