二溴二氧化钨

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.