Abstract
AbstractPolarized Raman and resonance Raman spectra of single crystals of one‐dimensional mixed valence platinum complexes have been recorded and studied. Polarized Raman spectra of single crystals of [M(II) (en)2M(IV)(en)2X2](ClO4)4, where X = Cl or Br, M = Pt or Pd and en = ethylenediamine, show strong resonance enhancement of the…XM(IV)X…symmetric stretching vibration in the chain. Analysis of the spectra shows that the metals are coupled in the chain through the halide atoms. The coupling occurs by electron charge transfer via the dz2‐orbitals of the metal from the lower to the higher oxidation state.
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