Packing oligothiophenes

L. Antolini, E. Tadesco, G. Barbarella, L. Favaretto, G. Sotgiu, M. Zambianchi, D. Casarini, G. Gigli, and R. Cingolani, Molecular packing and photoluminescence efficiency in odd-membered oligothiophene S,5-dioxides, J. Am. Chem. Soc., 122 9006-9013, 2000. 

In most of the recent literature on oligothiophenes however, substituted molecules become more and more favoured to those unsubstituted derivates since effects due to poor packing can be excluded much more easily and higher field-effect mobilities are usually easier to obtain. 

Dodccyl-substituted oligothiophenes on HOPG pack in lamellar structures where the oligothiophene units overlap slightly (Figure 13.12) [70,72,73]. This overlap... 

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