Control of electron delocalization in linear tricenter mixed-valence compounds
โ Scribed by I.B. Bersuker; S.A. Borshch; L.F. Chibotaru
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 405 KB
- Volume
- 136
- Category
- Article
- ISSN
- 0301-0104
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## Abstract We present here a general theoretical procedure to treat the problem of electron delocalization and magnetic interactions in highโnuclearity mixed valence clusters based on polyoxometalates. The main interactions between the delocalized electrons of mixedโvalence polyoxometalate anions
The electronic (350-900 nm), infrared and Raman (700-30 cm-1) spectra of polycrystalline samples of the mixedvalence (Ce3'/Ce4') oxysulรde compound were investigated. The compound is a low-gap semiconductor Ce 4 O 4 S 3 with intervalence transitions in the near-infrared (ca. 850 nm) and visible (ca.