Ca3Y2Ge3O12 的合成、晶体结构和热力学性质

IF 1.8 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Russian Journal of Inorganic Chemistry Pub Date : 2024-09-15 DOI:10.1134/s0036023624700578

L. T. Denisova, D. V. Belokopytova, Yu. F. Kargin, G. V. Vasil’ev, V. M. Denisov, V. V. Beletskii

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引用次数: 0

摘要

摘要通过在1773 K空气中焙烧固体CaCO3、Y2O3和GeO2制备了锗酸盐Ca3Y2Ge3O12，并完善了其X射线衍射晶体结构（空间群Ia（\bar {3}\）d，a = 12.80255（14）埃，V = 2098.34（7）埃3）。利用差示扫描量热法（DSC）测定了制备的锗酸盐在 320-1000 K 范围内的热容量，并利用实验数据计算了 Ca3Y2Ge3O12 的热力学性质。

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Synthesis, Crystal Structure, and Thermodynamic Properties of Ca3Y2Ge3O12

Abstract

Orthogermanate Ca₃Y₂Ge₃O₁₂ has been prepared via firing solid CaCO₃, Y₂O₃, and GeO₂ in air at 1773 K. Its X-ray diffraction crystal structure has been refined (space group Ia\(\bar {3}\)d, a = 12.80255(14) Å, V = 2098.34(7) Å³). The heat capacity of the prepared germanate in the range 320–1000 K has been determined by differential scanning calorimetry (DSC), and the experimental data have been used to calculate the thermodynamic properties of Ca₃Y₂Ge₃O₁₂.

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.