STABILITIES OF COF4 AND CRF5 IN THE GAS-PHASE

被引：14
|
作者：
KOROBOV, MV
SAVINOVA, LN
SIDOROV, LN
机构：
[1] Department of Chemistry, Moscow State University, Moscow
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 1993年 / 25卷 / 09期
关键词：
D O I：
10.1006/jcht.1993.1113
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Cobalt tetrafluoride CoF4 and chromium pentafluoride CrF5 were found in the gas phase by means of Knudsen-cell mass-spectrometry. Terbium tetrafluoride was used for the most effective fluorination. For the reactions at T → 0: CoF4 = CoF3+F and CrF5 = CrF4+F, the bond dissociation enthalpies Dom(CoF3-F) and Dom (CrF4-F) are (154±11) kJ·mol-1 and (132±16) kJ·mol-1, respectively, and the standard molar enthalpies of formation ΔfHom(CoF4, g, T → 0) and ΔfHom(CrF5, g, T → 0) are -(630±30) kJ·mol-1 and -(1144±34) kJ· mol-1, respectively. © 1993 Academic Press Ltd.
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页码：1161 / 1168
页数：8
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