Thermal cis–trans conversion in thiophene oligomers
| Autor: | Yoshitaka Katano, Shin Tanaka, Takehisa Yoshinari, Yuki Kimura, Hiroki Itoh, Yasunao Kuriyama, Shin-ichiro Nagasaka |
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| Rok vydání: | 2010 |
| Předmět: |
Mechanical Engineering
Transition dipole moment Metals and Alloys Trimer Condensed Matter Physics Photochemistry Oligomer Cis trans isomerization Electronic Optical and Magnetic Materials chemistry.chemical_compound Terthiophene chemistry Mechanics of Materials Materials Chemistry Thiophene Molecule Cis–trans isomerism |
| Zdroj: | Synthetic Metals. 160:1131-1135 |
| ISSN: | 0379-6779 |
| Popis: | Thermal cis–trans conversion has been examined in oligothiophene single molecules encapsulated in the molecular vessels of cyclodextrin and Na-mordenite. At high temperatures, optical absorption intensities are enhanced in bithiophene, terthiophene and quinquethiophene, while the intensity of quarterthiophene is temperature independent. Optical absorption comes from uncompensated transition dipole moment due to the thermal torsion between cis and trans forms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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