四氯化铌是一种无机化合物,化学式为NbCl4。它是暗紫色晶体,对空气和湿气十分敏感,受热(400℃)歧化为三氯化铌和五氯化铌。[1]
制备
四氯化铌通常由铌和五氯化铌晶体升温反应得到,金属在400°C,五氯化铌在250°C:[2]
- 4 NbCl5 + Nb → 5 NbCl4
用金属铝还原五氯化铌也能得到产物:
- 3 NbCl5 + Al → 3 NbCl4 + AlCl3
参考文献
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