Skeletal Sublattices of Heavy Components As a Basis of Stability of Crystal Structures


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Abstract

A crystallographic structural analysis of low- and high-temperature phases of BaSi2O5 and Na3SO4F compounds has been carried out in order to confirm the thesis that the stability of natural-abundant structural types is mainly determined by the configuration of the heaviest components. The geometry of cation (skeletal) sublattices is presented; it is shown that they play a key role in the formation of structures and are relatively stable at temperature phase transitions.

About the authors

S. V. Borisov

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences

Author for correspondence.
Email: borisov@niic.nsc.ru
Russian Federation, Novosibirsk, 630090

S. A. Magarill

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences

Email: borisov@niic.nsc.ru
Russian Federation, Novosibirsk, 630090

N. V. Pervukhina

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University

Email: borisov@niic.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090

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