Abstract

The halogen-bridged mixed-valence metal complexes (MX) have been the object of numerous studies probing the properties of their quasi-one-dimensional M-X sublattice in which the charge disproportionation δ of the metal (M 3−δ/M 3-δ can be tuned from 0 to 1. We have recently investigated the structure of a fully deuterated sample of [Pt(en) 2[Pt(en) 2I 2](ClO 4) 4 at room temperature by using pair-distribution-function analysis X-ray powder diffraction data and regular single crystal diffraction in order to study the relationship between the local structure and the charge density wave strength of this class of materials.

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