Correlation between structure and enthalpy properties of alkaline and alkali-earth metals mеtа- and orthosilicates

Автор: Gruba Oksana Nikolaevna, Germanyuk Nina Vasilievna, Ryabukhin Aleksandrgrigorevich

Журнал: Вестник Южно-Уральского государственного университета. Серия: Химия @vestnik-susu-chemistry

Рубрика: Химия твёрдого тела

Статья в выпуске: 1 (260), 2012 года.

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Using equations of model of effective ionic radii, metamorphosis of crystalline structures into cubic ones and enthalpies of a crystal lattice on the basis of X-ray and thermodynamic data of alkaline (Na, K), alkaline-earth (Ca, Sr, Ba) metasilicates and alkaline-earth (Ca, Sr, Ba) orthosilicates for the first time calculated standart energy of formation (SiO 2- 3, g), namely 715,65±0,07 kJ·mole -1. For Rb, Cs, Fr, Ra metasilicates and Ra orthosilicates it is estimated their enthalpies of interstructural interactions, enthalpies of crystal lattices and standart energy of formation.

Orthosilicates, metasilicates, silicate-ion, alkaline metals, alkaline-earth metals, standart energy of formation

Короткий адрес: https://sciup.org/147160217

IDR: 147160217

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