Monoclinic mixed crystals of halogenomethanes CBr4-nCln (n=0,...,4)
Langue
en
Article de revue
Ce document a été publié dans
Chemical Physics. 2007, vol. 336, n° 2-3, p. 150-156
Elsevier
Résumé en anglais
On the basis of the isostructural relationship between the low-temperature monoclinic (C2/c, Z = 32) phases of the halogenomethane CBr4-nCln (n = 0,...,4), a set of mixed crystals has been analysed by means of high-resolution ...Lire la suite >
On the basis of the isostructural relationship between the low-temperature monoclinic (C2/c, Z = 32) phases of the halogenomethane CBr4-nCln (n = 0,...,4), a set of mixed crystals has been analysed by means of high-resolution X-ray powder diffraction. It is shown that the monoclinic structure of pure and mixed crystals does not depend of the particularities of the dipolar (or dipole induced) interactions of the pure compound, neither on the composition of the mixed crystal, but on the relative content of the halogen atoms which controls the size of the molecule or the average molecule for the case of mixed crystals.< Réduire
Mots clés en anglais
Mixed crystals
Disorder
Vegard law
Halogenomethanes
Origine
Importé de halUnités de recherche