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|Title:||Photophysical Properties and Electropolymerization of Regioregular Head-to-Tail Oligothiophenes-Functionalized 9,9′-spirobifluorene Derivatives|
|Citation:||Jin, W., Ni, J., Lai, Y., Pei, J. (2007-04). Photophysical Properties and Electropolymerization of Regioregular Head-to-Tail Oligothiophenes-Functionalized 9,9′-spirobifluorene Derivatives. Acta Physico - Chimica Sinica 23 (4) : 459-465. ScholarBank@NUS Repository. https://doi.org/10.1016/S1872-1508(07)60030-8|
|Abstract:||The photophysical properties of oligothiophenes-functionalized 9,9′-spirobifluorene derivatives in solution and in solid state were investigated in detail. The enhanced red-shift was observed from the absorption and the photoluminescence (PL) spectra of these derivatives in dilute THF solution with the increase of thiophene unit at one branch of 9,9′-spirobifluorene identical with the increased p-electron delocalization and the more effective conjugation length of the whole molecular system. The investigation on the photophysical properties of these compounds further demonstrated that the sp3-hybrid carbon at the spiro-center completely obstructed the correlation between two branches of the 9,9′-spirobifluorene system and made every branch become an independent chromophore. The electrochemical polymerization of 6b as a representative was also investigated. © 2007 Chinese Chemical Society and College of Chemistry and Molecular Engineering, Peking University.|
|Source Title:||Acta Physico - Chimica Sinica|
|Appears in Collections:||Staff Publications|
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