Bidimensional Solvation and Delocalisation of Electrons at the Surface of an Insulating Oxide: The Role of Surface Hydroxyl Groups on MgO | Zendy

Chiesa Mario | Zendy; Paganini Maria Cristina | Zendy; Giamello Elio | Zendy

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Bidimensional Solvation and Delocalisation of Electrons at the Surface of an Insulating Oxide: The Role of Surface Hydroxyl Groups on MgO

Author(s) -

Chiesa Mario,

Paganini Maria Cristina,

Giamello Elio

Publication year - 2004

Publication title -

chemphyschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.016

H-Index - 140

eISSN - 1439-7641

pISSN - 1439-4235

DOI - 10.1002/cphc.200400466

Subject(s) - electron paramagnetic resonance , solvation , surface (topology) , chemistry , electron , oxide , photochemistry , radical , molecule , organic chemistry , nuclear magnetic resonance , physics , geometry , mathematics , quantum mechanics

Surface electron tuning : Combined EPR and UV/Vis‐NIR spectroscopic studies bring evidence for excess electron delocalisation at the surface of MgO as a function of hydroxyl coverage (see picture). The presence of surface hydroxyl groups induces domains of interacting paramagnetic centres on the surface of MgO providing a way of tuning the degree of electron delocalisation on the surface.

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