Spectroscopic studies of polaron and bipolaron defects in the stringly localized CDW solid [Pt II(en) 2][Pt IV(en) 2Cl 2](CIO 4) 4

The resonance Raman spectroscopy of defect states in [Pt(en) 2][Pt(en) 2Cl 2](CIO 2) 4 serves to resolve the twwo intragap defect adsorption features (A and B bands) located immediately to the red of the charge transfer band edge into five separate transition. Of these five absorptions, two are asso...

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Bibliographic Details
Published in:Synthetic metals 1991-05, Vol.42 (3), p.2745-2748
Main Authors: Donohoe, R.J., Worl, L.A., Bolou, A., Swanson, B.I., Gammel, J.T., Bishop, A.R.
Format: Article
Language:English
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Summary:The resonance Raman spectroscopy of defect states in [Pt(en) 2][Pt(en) 2Cl 2](CIO 2) 4 serves to resolve the twwo intragap defect adsorption features (A and B bands) located immediately to the red of the charge transfer band edge into five separate transition. Of these five absorptions, two are associated with a mode at 263 cm −1, assigned to electron polarons, and two with a mode at 287 cm −1, assigned to hole polarons, while a fifth band, associated with a mode at 272 cm −1, is not readily assigned. Of the polaron absorptions, we find that the electron and hole defects exhibit offset adsorptions in the order Ap −
ISSN:0379-6779
1879-3290
DOI:10.1016/0379-6779(91)91464-L