Enthalpies of Formation for the Crystals of Sr10(PO4)6F2 and Ba10(PO4)6F2: A Structural Thermochemical Model

被引：0
|
作者：
Orlovskii, V. P. [1 ]
Ionov, S. P. [1 ]
Speranskii, S. M. [1 ]
机构：
[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 117907, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 1998年 / 43卷 / 12期
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中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The heats of formation for the isomorphic crystals of Sr-10(PO4)(6)F-2 (SFAP) and Ba-10(PO4)(6)F-2 (BFAP) are calculated from the X-ray diffraction data. The bond energies in the crystal lattice are evaluated in terms of the structural thermochernical model which was successfully applied elsewhere for calculation of the crystal lattice energy for F- and Cl-derivatives of hydroxyapatite (HAP). The calculated heats of formation are Delta H-f(0)(SFAP, OK)= -12901 +/- 40 kJ/mol and Delta H-f(0)(BFAP, OK) = 12839 +/- 40 kJ/mol.
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页码：1894 / 1896
页数：3
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