121”(111)(Amax 330 mp, E 2950)) by cuprous chloride coupling of hexachlorocyclopentadiene. 6 Compound I11 was reduced over platinum to give bicyclopentyl, bp 188-190') nZo~ 1.4650. On being heated to 250”) I11 lost a mole of chlorine giving compound IV (85y0), mp 347”. Anal. Calcd. for CloClg: C, 29.70; C1, 70.30; mol. wt.,