Design of Hydrogen Bond Network in Halogen-Bridged Mixed-Valence Platinum Complexes by Substitution of Counter Ion

Abstract

Abstract Sulfates in one-dimensional halogen-bridged mixed-valence platinum complexes were synthesized in order to elucidate contributions of hydrogen bonds between in-plane ligand amines and counter ions to the mixed-valence state. Their intervalence charge-transfer bands measured by using the single crystals and their structures determined by single crystal X-ray diffraction analyses show that the energy difference of dz 2 orbitals between the PtII and the PtIV becomes larger with decreasing linkages between the Pt units by the hydrogen bonds, comparing with perchlorates and hydrogensulfates.