Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom.
Inorg Chem. 2010 Nov 1;49(21):9978-84. doi: 10.1021/ic101398g.
Groups of structurally related materials, including the alkali halides, exhibit a proportionality of isothermal compressibility to formula-unit volume. The relationship has recently been explored by Glasser and by Recio et al. In this paper, we present the consequences of such proportionality on the relationships of Born-Landé and Born-Mayer parameters to the formula-unit volume. These relationships have then been tested separately on (i) alkali (excluding cesium) halides and (ii) cesium halides. We conclude that the equations fit the NaCl-type materials satisfactorily, but less well for the CsCl-type materials, and that the Born-Mayer equation is more applicable. These results confirm the conclusion that volume is intimately linked to thermodynamic quantities, as already demonstrated by our development of volume-based thermodynamics (VBT).
结构相关的材料组，包括碱金属卤化物，表现出等温和单位体积压缩率的比例关系。最近，Glasser 和 Recio 等人对此关系进行了探讨。在本文中，我们介绍了这种比例关系对Born-Landé 和 Born-Mayer 参数与单位体积关系的影响。然后，我们分别对（i）碱（不包括铯）卤化物和（ii）铯卤化物进行了测试。我们得出结论，这些方程对 NaCl 型材料的拟合令人满意，但对 CsCl 型材料的拟合较差，且 Born-Mayer 方程的适用性更强。这些结果证实了体积与热力学量密切相关的结论，正如我们通过发展基于体积的热力学（VBT）所证明的那样。
