Structural and electronic properties of porphyrin skeleton of chlorophyll

The structural and electronic properties of porphyrin skeleton of chlorophyll have been investigated theoretically by performing semi-empirical and ab-initio molecular orbital theory calculations. The geometry of the system has been optimized considering the semi-empirical molecular orbital theory at the level of PM3, and the electronic properties of the system have been calculated by ab-initio restricted Hartree-Fock (RHF) with full MP2 correlation correction in the ground state included