Ruthenium tetrachloride

Ruthenium(IV) tetrachloride is volatile inorganic compound of ruthenium and chlorine with the formula .

Properties

Ruthenium(IV) tetrachloride decomposes above -30 Ã‚°C:

Synthesis

Synthesis of ruthenium(IV) tetrachloride is formed by the action of chlorine gas on ruthenium(III) chloride at 750 Ã‚°C:

The RuCl₄ is collected on a liquefied air cooled condenser and decomposes above -30 Ã‚°C. The reaction was determined to have the following thermodynamic properties:

• ΔH°₂₉₈ = 36.6 kcal/mol (enthalpy)
• ΔS°₂₉₈ = 32.8 entropy units (entropy change)
• = -6.6 cal/mol degree (change in heat capacity at constant pressure)
• S°₂₉₈ = 99.3 entropy units

The degree signs indicate standard state.

References