Raman spectra and conformational properties of hexyl- and methylsulphanyl-substituted oligothiophenes
✍ Scribed by A. Bongini; G. Barbarella; M. Zambianchi; V. Hernández; J.T. López Navarrete
- Book ID
- 117543546
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 147 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0379-6779
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## Abstract A homologous series of donor‐substituted oligothiophenes 7–9 bearing methylthio groups in the „outer”︁ β‐positions were synthesized up to a quaterthiophene. The physical properties are dependent on the chain length of the conjugated system. The compounds exhibit biological activities. D
The Fourier transform FT infrared and FT-Raman spectra of a p-conjugated thiophene-based oligomer were studied. The compound has a well-barrier-well structure, where the well parts are two bithiophene end moieties and the barrier part is a methylene fragment with a larger energy gap. Characteristic