High temperature gas phase syntheses of C20H12 cyclopenta-fused polycyclic aromatic hydrocarbons: benz[l ]acephenanthrylene and benz[ j ]acephenanthrylene and their selective rearrangement to benzo[ j ]fluoranthene
High temperature gas phase syntheses of C20H12 cyclopenta-fused polycyclic aromatic hydrocarbons: benz[l ]acephenanthrylene and benz[ j ]acephenanthrylene and their selective rearrangement to benzo[ j ]fluoranthene