title: Molybdenum(IV) bromide
text: # Molybdenum(IV) bromide
  
  Molybdenum(IV) bromide, also known as molybdenum tetrabromide, is the inorganic compound with the formula $MoBr_4.$ It is a black solid. $MoBr_4$ has been prepared by treatment of molybdenum(V) chloride with hydrogen bromide:
  
         2 $MoCl_5$ + 10 HBr → 2 $MoBr_4$ + 10 HCl + $Br_2$
  
  The reaction proceeds via the unstable molybdenum(V) bromide, which releases bromine at room temperature.
  
  Molybdenum(IV) bromide can also be prepared by oxidation of molybdenum(III) bromide with bromine.
  
  