Vanadiinitetrakloridi

Vanadiinitetrakloridi, also known as vanadium tetrachloride, is a chemical compound with the formula VCl4. It is a dark green liquid at room temperature, which solidifies to a dark green solid upon cooling. Vanadiinitetrakloridi is highly reactive and sensitive to moisture, rapidly hydrolyzing in the presence of water to form vanadium oxychlorides and hydrochloric acid.

The compound is primarily used as a precursor in the synthesis of other vanadium compounds. It is also employed in the production of catalysts for various chemical reactions, including the polymerization of olefins. Vanadiinitetrakloridi is typically prepared by the direct reaction of vanadium metal or vanadium oxide with chlorine gas.

In terms of its chemical properties, vanadiinitetrakloridi is a Lewis acid, capable of accepting electron pairs from donor molecules. It exhibits a tetrahedral molecular geometry in its gaseous state, with vanadium in the +4 oxidation state. The compound is soluble in organic solvents such as dichloromethane and chloroform but is insoluble in water.

Safety precautions are necessary when handling vanadiinitetrakloridi due to its reactivity and sensitivity to moisture. It should be stored in a cool, dry place away from incompatible substances such as water and strong bases. Proper ventilation is also recommended to prevent the accumulation of toxic fumes.