MASS SPECTROMETRIC STUDIES AT HIGH TEMPERATURES .31. STABILITIES OF TUNGSTEN AND MOLYBDENUM OXYFLUORIDES

被引：25

作者：

ZMBOV, KF

UY, OM

MARGRAVE, JL

机构：

[1] Department of Chemistry, Rice University, Houston

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1969年 / 73卷 / 09期

关键词：

D O I：

10.1021/j100843a039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

WO3(s) and MoO2(s) were fluorinated in a tantalum Knudsen cell at high temperatures, and the effusing molecules were characterized mass spectrometrically. Several equilibria were observed and heats of reaction were derived from temperature-dependence studies. The heats of atomization for the oxyfluoride species are ΔH°298,atoms[WOF4(g)] = 651 ± 10 kcal mol-1; ΔH°298,atoms[WO2F2(g)] = 572 ± 10 kcal mol-1; and ~ΔH°298,atoms[MoO2F2(g)] = 582 ± 15 kcal mol-1.

引用

页码：3008 / &

共 13 条

[1]

DROWART J, 1964, CONDENSATION EVAPORA, P255

[2]

FEBER RC, 1964, LA3164 US AT EN COMM

[3]

Inghram M.G., 1960, HIGH TEMPERATURE TEC

[4]

KING EG, 1960, 5664 US BUR MIN REP

[5]

OTVOS GW, 1956, J AM CHEM SOC, V78, P546

[6]

SCHUKAREV SA, 1959, RUSS J INORG CHEM, V4, P13

[7]

STULL DR, 1956, ADVANCES CHEMISTRY S

[8]

STULL DR, 1965, PB168370 CLEAR FED S

[9] VAPOR PRESSURE OF MOLYBDENUM [J].

VOZZELLA, PA ;

DECRESCENTE, MA ;

MILLER, AD .

JOURNAL OF CHEMICAL PHYSICS, 1964, 41 (02) :589-&

[10] MASS SPECTROMETRIC STUDIES AT HIGH TEMPERATURES .21. HEAT OF ATOMIZATION OF GALIUM OXYFLUORIDE [J].

ZMBOV, KF ;

MARGRAVE, JL .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1967, 29 (10) :2649-&

← 1 2 →