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Issue 3, 2016
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Chirality-dependent structuration of protonated or sodiated polyphenylalanines: IRMPD and ion mobility studies

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Abstract

Ion mobility experiments are combined with Infra-Red Multiple Photon Dissociation (IRMPD) spectroscopy and quantum chemical calculations for assessing the role of chirality in the structure of protonated and sodiated di- or tetra-peptides. Sodiated systems show a strong chirality dependence of the competition between Na+⋯O and Na+⋯π interactions. Chirality effects are more subtle in protonated systems and manifest themselves by differences in the secondary interactions such hydrogen bonds between neutral groups or those involving the aromatic rings.

Graphical abstract: Chirality-dependent structuration of protonated or sodiated polyphenylalanines: IRMPD and ion mobility studies

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Publication details

The article was received on 05 Nov 2015, accepted on 09 Dec 2015 and first published on 09 Dec 2015


Article type: Paper
DOI: 10.1039/C5CP06768E
Author version available: Download Author version (PDF)
Citation: Phys. Chem. Chem. Phys., 2016,18, 1807-1817
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    Chirality-dependent structuration of protonated or sodiated polyphenylalanines: IRMPD and ion mobility studies

    V. Lepere, K. Le Barbu-Debus, C. Clavaguéra, D. Scuderi, G. Piani, A. Simon, F. Chirot, L. MacAleese, P. Dugourd and A. Zehnacker, Phys. Chem. Chem. Phys., 2016, 18, 1807
    DOI: 10.1039/C5CP06768E

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