二溴二氧化钨
| 二溴二氧化钨 | |
|---|---|
| |
| 英文名 | Tungsten dibromide dioxide |
| 识别 | |
| CAS号 | 13520-75-7 
|
| PubChem | 139484 |
| SMILES |
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| 性质 | |
| 化学式 | Br2O2W |
| 摩尔质量 | 375.65 g·mol−1 |
| 外观 | 橙色晶体[1] |
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | |
二溴二氧化钨是一种无机化合物，化学式为WO2Br2。它可由三氧化钨和四溴化碳的反应制得，如果四溴化碳的比例较多，还会有四溴氧化钨（WOBr4）和六溴化钨生成。[2]其热稳定性介于WO2Cl2和WO2I2之间，[3]挥发性则远小于WOBr4。[1]它和W6Br12、NaBr以及Br2在高温下反应，可以得到棕黑色的混合价态钨化合物Na[W2O2Br6]。[4]
参考文献
- ^ 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 （英语）.
- ^ 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.
拓展阅读
- 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 （英语）.
- 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 （英语）.