The synthesis of π-electron molecular rods with a thiophene or thieno[3,2-b]thiophene core unit and sulfur alligator clips
作者:Arnošt Seidler、Jiří Svoboda、Václav Dekoj、Jana Vacek Chocholoušová、Jaroslav Vacek、Irena G. Stará、Ivo Starý
DOI:10.1016/j.tetlet.2013.03.084
日期:2013.5
A series of short oligo(p-phenylene-ethynylene)- and oligo(p-phenylenevinylene)-type molecular rods with an electronically rich thiophene or thieno[3,2-b]thiophene core unit and sulfur anchoring groups (AcS-, t-BuS-) at the termini have been synthesised using Sonogashira coupling or Homer-Wads-worth-Emmons (E)-olefination methodology. The collection of linear/bent, conjugated/cross-conjugated systems has been characterised by UV-vis and fluorescence spectroscopy, optical/calculated HOMO-LUMO gaps and calculated excitation energies. (C) 2013 Elsevier Ltd. All rights reserved.