Table 1.

Energy values of prodigiosin and cycloprodigiosin before and after energy minimization

Parameter	Prodigiosin	Cycloprodigiosin
Initial potential energy	57.223	150.369
Initial RMS gradient	22.477	43.156
Potential energy	27.531	40.730
Vanderwaals energy	−7.284	−1.337
RMS gradient	0.107	0.0089