A copper(II) ion fits perfectly into the center of tetraphenylporphyrin (TPP), and i was wondering if by doing so, will it become more polar or less polar than the original TPP? this is something that i forgot, but can someone please correct me if i am wrong? if a molecule has no dipole moment, then it is non polar right? and the more dipole moment it has, the more polar it is right? also..tetraphenylchlorine has a dipole moment, while tetraphenyloporphin has no dipole moment right?