SrCl2
The formula for carbon dibromide is CBr2.
As the name suggests the formula is C2Br4 Structurally, thiscould be Br2C=CBr2 ( 1,1,2,2-tetrabromoeth**e**ne) Br2HC-CHBr2 ( 1,1,2,2-tetrabromoeth**a**ne) or Br3C-CH2Br ( 1,1,1,2-tetrabromoeth**a**ne) Note the positioning of the bromine atoms and the one letter difference in the names.