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The News of Altai State University
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3(13)1999
Chemistry

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A.A. Bondarev, V.A. Novozhenov, ла.A. Bukin

Account parameters of crystal structures and features of a structures intermetallic compounds scandium with gallium

The program is made and accounted coordinates of atoms for all intermetallic compounds rare earth metals with gallium. For all compounds constructed the atom grids with parameters hkl 100, 010, 001, 110, 101, 011, 111. The shortest internuclear distances are designed and it is revealed, that in compounds of contents Sc3Ga2, ScGa, Sc3Ga5, ScGa2 internuclear distance Ga-Ga is close to distance in gallium and considerably less than distances Ga-Sc and Sc-Sc. The dependence of distance Ga-Ga on contents is constructed. It is supposed that in intermetallides rare earth metals with gallium electronic structure of a particle Ga2 partially is kept.

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