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Search for "polythiophene" in Full Text gives 9 result(s) in Beilstein Journal of Organic Chemistry.
Recent advances in the application of isoindigo derivatives in materials chemistry
Beilstein J. Org. Chem. 2021, 17, 1533–1564, doi:10.3762/bjoc.17.111
- the morphology of thin films of the photovoltaic cells. To date, the maximum efficiency of 12.05% has been shown by an OSC based on a composite of a donor polythiophene and an acceptor polymeric dicyanoindanone derivative [13]. Among the derivatives of isoindigo, the leading compounds are polymers 1–3
- components, the concept of creating one-component OSCs appeared [54]. Following this strategy, isoindigo was used as platform for the synthesis of compound 35a, combining acceptor (perylene diimide) and donor (polythiophene) fragments in the structure. Both polymers were obtained using the Stille cross
- derivatives of isoindigo containing no thiophene units were also used as acceptor components of the OSCs. Moreover, in both of the studies described in recent years, the donor component of the photovoltaic cell was variously substituted polythiophene, while the acceptor component (isoindigo platform) was
Formal preparation of regioregular and alternating thiophene–thiophene copolymers bearing different substituents
Beilstein J. Org. Chem. 2020, 16, 317–324, doi:10.3762/bjoc.16.31
- copolymer; nickel(II) catalyst; oligosiloxane; regioregular polythiophene; solubility; Introduction Polythiophenes attract much attention in materials science because of their extended π-conjugation, which is applied for a wide range of electronic materials. In particular, the regioregular polymers with a
- to afford the regioregular polythiophene in which 2,5-dihalo-3-substituted thiophene 1 is employed as a monomer precursor, converting to the corresponding organometallic monomer by a halogen−magnesium exchange reaction with a Grignard reagent. The employment of 1 leading to polythiophene has been
- by polymerization catalyzed by a nickel complex, leading to the regioregular HT polythiophene (Scheme 1) [8][9]. An additional feature of the deprotonative protocol for polythiophene is the possibility to use chlorothiophene 3, in which the use of a nickel N-heterocyclic carbene (NHC) complex was
Synergistic electrodeposition of bilayer films and analysis by Raman spectroscopy
Beilstein J. Org. Chem. 2018, 14, 2186–2189, doi:10.3762/bjoc.14.191
- , but the C=C bands show important changes, such as the marked downshift of the Cβ=Cβ band from 1321 cm−1 to 1312 cm−1, and the relative intensity increase of the Cα=Cβ band at ≈1396 cm−1. In particular, Kocharova et al. [16] associated the intensity increase of the Cα=Cβ band in polythiophene
Fluorogenic PNA probes
Beilstein J. Org. Chem. 2018, 14, 253–281, doi:10.3762/bjoc.14.17
- fluorescence cationic polythiophene that fluoresces upon binding to DNA [128] has been used as a transducer for the highly specific detection of DNA, captured by an unlabeled PNA probe immobilized on glass slides, giving a subpicomole sensitivity that could conceivably be improved by the use of labeled PNA
A versatile route to polythiophenes with functional pendant groups using alkyne chemistry
Beilstein J. Org. Chem. 2016, 12, 2682–2688, doi:10.3762/bjoc.12.265
- , Sweden 10.3762/bjoc.12.265 Abstract A new versatile polythiophene building block, 3-(3,4-ethylenedioxythiophene)prop-1-yne (pyEDOT) (3), is prepared from glycidol in four steps in 28% overall yield. pyEDOT features an ethynyl group on its ethylenedioxy bridge, allowing further functionalization by
- alkyne chemistry. Its usefulness is demonstrated by a series of functionalized polythiophene derivatives that were obtained by pre- and post-electropolymerization transformations, provided by the synthetic ease of the Sonogashira coupling and click chemistry. Keywords: electropolymerization; functional
- polymers; polythiophene; Sonogashira coupling; thiophene; Introduction Currently organic conjugated polymers are attracting considerable interest for various applications in plastic electronics. In particular, poly(3,4-ethylenedioxythiophene) (PEDOT) [1] and its derivatives [2][3][4][5][6][7] play an
Comparing blends and blocks: Synthesis of partially fluorinated diblock polythiophene copolymers to investigate the thermal stability of optical and morphological properties
Beilstein J. Org. Chem. 2016, 12, 2150–2163, doi:10.3762/bjoc.12.205
- , suggesting that such materials may be interesting for enhanced thermal stability of organic photovoltaic active layers based on similar systems. Keywords: conjugated block-copolymer synthesis; fluorination; microphase stabilization; polythiophene; temperature-dependent Raman spectroscopy; Introduction With
- that it is one of the most common methods for synthesizing fully conjugated block copolymers. Since the backbone flexibility of each block has a crucial impact on the self-assembly of a block copolymer [7][40], the properties of polythiophene-based block copolymers can potentially be tuned by backbone
- of thin films spin-cast from hot 1,2,4-trichlorobenzene were measured. The thin film UV–visible absorption of polythiophene derivatives can provide some information about the molecular order of the polymer chains, via the interpretation of the vibronic shoulders [52][53][54][55]. In the case of
Polythiophene and oligothiophene systems modified by TTF electroactive units for organic electronics
Beilstein J. Org. Chem. 2015, 11, 1749–1766, doi:10.3762/bjoc.11.191
- in organic field effect transistors and solar cells. Keywords: donor; oligothiophene; organic electronics; polythiophene; semiconductor; tetrathiafulvalene; Introduction Sulfur-rich π-functional systems are important building blocks in materials chemistry. Among them, tetrathiafulvalene (TTF
- ) electron donor and polythiophene (PT) conjugated systems are highly popular classes of organic compounds which have shown fascinating conducting and electronic properties. The advantages of PT-based materials are their synthetic versatility, excellent film-forming properties and potential to increase the
- studied polythiophene materials for organic electronics are regioregular poly(3-hexylthiophene) (P3HT) [2][3] and poly(3,4-ethylenedioxythiophene) (PEDOT) [4], which is highly conductive in its doped state. P3HT has become a benchmark polymer semiconductor for both bulk hetero-junction solar cells (BHJSCs
IR and electrochemical synthesis and characterization of thin films of PEDOT grown on platinum single crystal electrodes in [EMMIM]Tf2N ionic liquid
Beilstein J. Org. Chem. 2015, 11, 348–357, doi:10.3762/bjoc.11.40
- (Table 1). The values of the activation energy for the oxidation and reduction processes are very similar and very close to the one reported for polythiophene (16 kJ mol−1) [24], which means that the oxidation and reduction of PEDOT (and the corresponding counterion exchange) occurs easily in spite of
Synthesis of an organic-soluble π-conjugated [3]rotaxane via rotation of glucopyranose units in permethylated β-cyclodextrin
Beilstein J. Org. Chem. 2014, 10, 2800–2808, doi:10.3762/bjoc.10.297
- 5, Supporting Information File 1, Figure S2). These linked [3]rotaxanes can be key monomers for synthesizing organic soluble IMWs bearing polythiophene or poly(para-phenylene) as backbone units. We next fixed the pseudo rotaxane structure by complexation instead of cross-coupling reaction (Scheme 6
- or complexation of the pseudo linked [3]rotaxane with capping molecules, the fixed [3]rotaxane was isolated in chloroform solution. The formation of the fixed [3]rotaxane was confirmed by NMR analysis. Experiments are now in progress towards synthesizing IMWs bearing polythiophene or poly(para
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