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三溴化钛

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三溴化钛[1][2]
IUPAC名
Titanium(III) bromide
别名 溴化钛(III)
识别
CAS号 13135-31-4  ✓
PubChem 136975
ChemSpider 120705
SMILES
InChI
InChIKey MTAYDNKNMILFOK-UHFFFAOYSA-K
性质
化学式 TiBr3
摩尔质量 287.579 g·mol⁻¹
外观 蓝黑色固体
危险性
欧盟分类 未列出
NFPA 704
NFPA 704.svg
0
0
0
 
相关物质
其他阴离子 三氯化钛
三氟化钛
相关化学品 四溴化钛
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

三溴化钛是一种无机化合物,化学式 TiBr3。 它是一种蓝黑色顺磁性固体,带有红色反光。 尽管它是烯烃聚合的催化剂,但它的应用很少。

制备和结构

TiBr3 可以由四溴化钛在氢气氛中加热而成:[3]

2 TiBr4 + H2 → 2 TiBr3 + 2 HBr

它也可以由钛金属和四溴化钛归中反应而成。[4][5]

Ti + 3 TiBr4 → 4 TiBr3

TiBr3的两个同质异形体是已知的,每个它们都显示出八面体Ti中心。[4]

反应

加热三溴化钛会得到二溴化钛和挥发性的四溴化钛:[3]

2 TiBr3 → TiBr4 + TiBr2

三溴化钛固体溶于电子供体溶剂(L)中,例如吡啶,生成3:1比例的加合物:

TiBr3 + 3 L → 2 TiBr3L3

参考资料

  1. ^ 存档副本. [2020-12-08]. (原始内容存档于2013-11-12). 
  2. ^ 存档副本. [2020-12-08]. (原始内容存档于2021-05-19). 
  3. ^ 3.0 3.1 Sherfey, J. M. Titanium(III) Chloride and Titanium(III) Bromide. Inorganic Syntheses. Inorganic Syntheses 6. 2007: 57–61. ISBN 9780470132371. doi:10.1002/9780470132371.ch17. 
  4. ^ 4.0 4.1 Troyanov, S. I.; Rybakov, V. B.; Ionov, V. M. "Preparation and crystal structure of titanium tetrabromide, titanium tribromide and titanium(2+) tetrabromoaluminate(1-)" Zhurnal Neorganicheskoi Khimii 1990, vol. 35, 882-7.
  5. ^ Stebler, Anton; Leuenberger, Bruno; Gödel, Hans U. Synthesis and Crystal Growth of A3 M2 X9 (A = Cs, Rb; M = Ti, V, Cr; X = Cl, Br). Inorganic Syntheses 26. 1989: 377–385. ISBN 9780470132579. doi:10.1002/9780470132579.ch69. 
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三溴化钛
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