CORRELATION CURVES FOR EQUATORIAL AXIAL INTERACTIONS

Metal-ligand distances for hexacoordinate complexes show a mutual inte rrelation manifested in the fact that with increasing axial distances the equatorial ones decrease and vice versa. These R(a) vs R(e) depend ences have been registered for certain chromophores and also for hexaf luoro, hexachloro, hexanitro and hexaaqua complexes. Based on the anha rmonic shape of the adiabatic potential surface, a theoretical analysi s yields the form of the R(a) vs R(e) dependence which, in the most si mple form, is a hyperbolic function.