The first direct experimental comparison between the hugely contrasting properties of PEDOT and the all-sulfur analogue PEDTT by analogy with well-defined EDTT–EDOT copolymers

The role of structural and electronic factors in shaping the ambipolar properties of donor–acceptor polymers of thiophene and benzothiadiazole

“…This characteristic effect in the EDOT derivative polymers is mainly attributed to the intramolecular chalcogen-chalcogen interactions. A strong O···S intramolecular interaction between neighbor EDOT units lead to rigidity of polymer chain and increase of effective conjugated length [9]. Similar effect is much weaker between S···S intramolecular interaction in the case of poly54.…”

“…A sulphur derivative 3,4-etyleno-1,4-ditiatiofen (EDTT) present similar redox properties to EDOT [11], however redox properties of their polymers are more divergent due to weaker interaction between S atoms [9].…”

“…leads to rigititation of polymers chain effectively reinforcement the effective conjugation length [9].…”

BODIPY-based conjugated polymers for broadband light sensing and harvesting applications

“…Although it is difficult to determine precisely, the optical band-gap corresponds to around 1.18 eV for p(BDP-bisEDOT) and around 1.35 eV for p(BDP-bisEDTT) as the onsets are around 1050 nm and 919 nm, respectively. While the EDTT units in the bis-EDTT unit are expected to be twisted, the more planar spatial configuration of bis-EDOT, due to the favourable O/S interactions between atoms of adjacent EDOT units, 24 results in a higher degree of conjugation, and hence the lower band-gap of p(BDP-bisEDOT).…”

Electrosynthesis and Characterisation of Poly(3,4-Ethylenedioxythiophene) Films Incorporating Ferrocene

“…From the most noteworthy materials used for the metallic centre incorporation we can distinguish inert matrices such as silica [2] or polymeric resins [6], and electroactive supports such as electronically conducting polymers (ECPs) [7][8][9][10][11][12][13], being the latter route the approach followed in the present work. Compared with other host supports for the catalytic centres, the electrochemically prepared ECPs exhibit several advantageous characteristics such as the control of the film thickness and morphology [14] by the electrochemical mode [15][16][17][18] and conditions employed in the polymerization [19][20][21], the direct formation of the polymer in the conducting state onto a variety of substrates [22][23][24][25] and the possibility to modulate the redox state of the catalyst by electrical conditioning [5,7,26]. Moreover, being a porous material, does not restrict the catalytic activity to the film surface, allowing the access of reactants to the organometallic centres immobilized in the interior of the polymer as well as the withdraw of the reaction products to the bathing solution [26,27].…”