In all host-guest complexes, the porphyrin plane is significantly distorted (the Cβ-Cβ-Cβopp-Cβopp angles varying in the range of 0˚-25˚ and N-Cα-Cα-N angles varying in the range of 37˚-48˚) because of a steric hindrance between the peripheral substituents (for NSD profile check Figure ). This deformation results in appearance of two cavities on both sides of the porphyrin macrocycle, which differ by the position of NH3 + groups. In one cavity the ammonia groups are placed on the same side of the cavity and in another -on the opposite sides (Figure ), and the distance between two nitrogen atoms increases from 4.899 Å to 8.7174 Å, respectively. The difference in the position of NH3 + groups results in a non-identical mode of the binding of two camphorsulfonic acids ("standing" and "lying"). Both the NBO and AIMALL analysis showed that the guest molecules interact with the porphyrin cation through the formation of four H-bonds, which cause significant elongation of the N-H bonds by 0.08-0.03 Å in the case of NH3 + groups and by 0.03 Å in the case of inner core protons for the major conformer A (Figure , Tables and).