QUANTUM COMPUTATIONAL STUDIES ON PORPHYCENE - Theoretical and Computational Research in the 21st Century - page 186

The computed π charge densities, Mulliken charges, and ZDO charges
of porphycene on the basis of AM1 calculation are presented in Figures
9.7(A-C), respectively.

FIGURE 9.7(A) Computed π charge density of porphycene on the basis of HMO

calculation.

FIGURE 9.7(B)

Computed Mulliken atomic charge of porphycene on the basis of AM1

calculation.