oligoethyleneoxide bridges and embedding bithiophene, terthiophene or 3, 7-bis (thiophen-
2-yl)-N-ethyl-10H-phenothiazine units. The synthesis was performed under various reaction
conditions and different coupling types in order to establish the correlation between yields
and employed solvents and bases. The structure of the compounds was supported by single
crystal X-ray diffractometry, NMR, and MS experiments.