Cristallographie à haute résolution des complexes acides minéraux bases azotées ou acides aminés : Etude des interactions intermoléculaires

Abstract : Organic-inorganic hybrid materials resulting from the association of amino acids with phosphorous acid have a great importance in industry: IR, very high SGH, and NLO properties make these hybrid materials highly attractive for frequency doubling, they also can be used as infrared detectors and pyroelectric devices). We report in the first part of this work chemical preparation, infrared and NMR spectroscopic studies and structural determination by single crystal X-ray diffraction of six new hybrid complexes. The second part is devoted to an accurate analysis of the reversible first order single crystal phase transition that occurs in m-CPAMP. The thermal behaviour and the study of charge density of m-CPAMP using high-resolution data sets collected with synchrotron and neutron diffraction experiments at low temperature will be presented and discussed. This study allows a better understanding of the phase transition mechanism.
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El-Eulmi Bendeif. Cristallographie à haute résolution des complexes acides minéraux bases azotées ou acides aminés : Etude des interactions intermoléculaires. Autre. Université Henri Poincaré - Nancy 1, 2006. Français. ⟨NNT : 2006NAN10140⟩. ⟨tel-01754305⟩

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