二溴二氧化鎢
| 二溴二氧化鎢 | |
|---|---|
| |
| 英文名 | Tungsten dibromide dioxide |
| 識別 | |
| CAS號 | 13520-75-7 
|
| PubChem | 139484 |
| SMILES |
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| 性質 | |
| 化學式 | Br2O2W |
| 摩爾質量 | 375.65 g·mol−1 |
| 外觀 | 橙色晶體[1] |
| 若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。 | |
二溴二氧化鎢是一種無機化合物，化學式為WO2Br2。它可由三氧化鎢和四溴化碳的反應製得，如果四溴化碳的比例較多，還會有四溴氧化鎢（WOBr4）和六溴化鎢生成。[2]其熱穩定性介於WO2Cl2和WO2I2之間，[3]揮發性則遠小於WOBr4。[1]它和W6Br12、NaBr以及Br2在高溫下反應，可以得到棕黑色的混合價態鎢化合物Na[W2O2Br6]。[4]
參考文獻
- ^ 1.0 1.1 R Colton, Ib Tomkins. Halides and oxide halides of molybdenum and tungsten. IV. Preparation of tungsten(VI) oxide bromides and the magnetic properties of molybdenum(V) oxide halides. Australian Journal of Chemistry. 1968, 21 (8): 1975 [2020-11-27]. ISSN 0004-9425. doi:10.1071/CH9681975 （英語）.
- ^ Pouraud, Michel; Chaigneau, Marcel. Action of carbon tetrabromide on tungsten trioxide. Compt. rend., 1959. 249. 2568-2570.
- ^ Neumann, Gerhard M. Thermodynamics of heterogeneous gas equilibriums. V. Gas phase composition and chemical transport reactions in the tungsten-halogen-oxygen system. Zeitschrift fuer Metallkunde, 1973. 64 (1): 26-32. ISSN: 0044-3093.
- ^ Zheng, Yue-Qing; Peters, Karl; von Schnering, Hans Georg. The Mixed Valence Tungsten(IV,V) Compound Na[W2O2Br6]. Zeitschrift für anorganische und allgemeine Chemie. 1998, 624 (9): 1415–1418. ISSN 0044-2313. doi:10.1002/(SICI)1521-3749(199809)624:9<1415::AID-ZAAC1415>3.0.CO;2-5.
拓展閱讀
- Brian G. Ward, Fred E. Stafford. Synthesis and structure of four- and five-coordinated gaseous oxohalides of molybdenum(VI) and tungsten(VI). Inorganic Chemistry. 1968-12, 7 (12): 2569–2573 [2020-11-27]. ISSN 0020-1669. doi:10.1021/ic50070a020 （英語）.
- D.A Edwards, R.T Ward. The preparation and characterisation of rhenium oxidetetrabromide. Related reactions of molybdenum and tungsten. Inorganic and Nuclear Chemistry Letters. 1973-02, 9 (2): 145–150 [2020-11-27]. doi:10.1016/0020-1650(73)80044-3 （英語）.