Beilstein J. Org. Chem.2010,6, 1180–1187, doi:10.3762/bjoc.6.135
: oligothiophenes; phenazines; scanning tunneling microscopy; self-assembled monolayers; TD-DFT calculations; Introduction
Thiophene based oligomers and polymers have drawn considerable interest as active materials in various fields of organicelectronics such as organic light-emitting diodes (OLEDs), organic thin
]. In addition, fused bithiophenes with an enforced planarity, and therefore reduced optical gaps, and an increased π–π overlap of the polycyclic molecule backbone have entered various fields of organicelectronics [9][10][11][12][13].
Apart from their optoelectronic properties, linear and branched as
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Graphical Abstract
Scheme 1:
Synthesis of 4. a) 1) EtLi, Et2O, −78 °C, 1 h; 2) (COOMe)2, Et2O, −78 °C, 2 h, 33%; b) FeCl3, MeNO2...