TiBr4
Titanium tetrabromide, TiBr4, is an inorganic compound. It is a colorless crystalline solid at room temperature. TiBr4 is highly sensitive to moisture and readily hydrolyzes in air to form titanium dioxide and hydrogen bromide. This reaction is quite vigorous. The compound melts at 242.5 °C and boils at 394 °C. In the solid state, it adopts a tetrahedral molecular structure. It is soluble in some organic solvents such as carbon tetrachloride. Titanium tetrabromide can be synthesized by the direct reaction of titanium metal with bromine vapor at elevated temperatures. Alternatively, it can be prepared by reacting titanium tetrachloride with hydrogen bromide. TiBr4 is primarily used as a precursor in the synthesis of other titanium compounds and as a catalyst in some organic reactions. Its reactivity, particularly its sensitivity to moisture, requires careful handling and storage under an inert atmosphere.