IV. TABLE CAPTIONS Table I: Table II: 8 mean values and standard deviation of distances, orientation angles, excitation energies and excitonic couplings for the two structures. The long axis is defined by the vector connecting the two nitrogen atoms R ( N 13 ) − R ( N 14 $_{)}$, the short axis by the vector R ( N 14 ) − R ( C 20 ) + R ( N 13 ) − R ( C 19 $_{)}$. coordinates, atomic charges and dipoles for PIC