138145-26-3

Upstream product

• 79-37-8 oxalyl dichloride 
• 4956-41-6 1,2-dioctyloxybenzene 
• 111-83-1 1-bromo-octane 
• 120-80-9 benzene-1,2-diol 
• 335457-78-8 1,2-diundecyloxybenzene 
• 693-67-4 bromoundecane 
• 6309-15-5 3,3',4,4'-tetrahydroxybenzil 

Downstream Products

• 944831-68-9 C₆₈H₁₁₀N₂O₆ 
• 1384190-17-3 2,3-di(3,4-dioctyloxyphenylo)-6,7-diaminoquinoxaline 
• 1384190-22-0 C₈₄H₁₃₆N₄O₆ 
• 1384190-23-1 C₇₂H₁₁₂N₄O₆ 
• 1384190-25-3 C₆₆H₁₀₀N₄O₆ 
• 1262970-29-5 2,3-bis-(3,4-dioctyloxyphenyl)quinoxaline-6-carboxylic acid 4-(6-dodecyloxybenzoxazol-2-yl)phenyl ester 
• 1293382-02-1 C₆₀H₈₂N₂O₇ 

Relevant academic research and scientific papers

Cyano-Functionalized Quinoxaline-Based Polymer Acceptors for All-Polymer Solar Cells and Organic Transistors

Quinoxaline (Qx) derivatives are promising building units for efficient photovoltaic polymers owing to their strong light absorption and high charge-transport abilities, but they have been used exclusively in the construction of polymer donors. Herein, fo

Phase crossover in columnar tris-(1,3,4-oxadiazoles) with pendant quinoxalines

Four new series of bis-(1,3,4-oxadiazoles) 1a–c and tris-(1,3,4-oxadiazoles) 1d containing peripheral quinoxalines were prepared and their mesomorphic behavior was reported. Except for compound 1c (n=12), all other compounds 1a–d formed columnar phases wh

Quinoxaline-thiophene based thick photovoltaic devices with an efficiency of ～8%

A series of difluoroquinoxaline-thiophene based reduced band gap polymers was designed and synthesized by considering non-covalent coulombic interactions in a polymeric main chain. The insertion of different numbers of thiophene moieties allows for the adjustment of the absorption range, frontier energy levels, crystalline self-organization, film morphology and the resulting photovoltaic properties. A thick blend film of poly(thiophene-alt-(2,3-bis(3,4-bis(octyloxy)phenyl)-6,7-difluoroquinoxaline)) (PDFQx-T):[6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) showed a rough, inhomogeneous and largely phase-separated surface morphology compared to a typical film with ～100 nm thickness. A similar trend was observed in the surface morphology of a poly(2,2′-bithiophene-alt-(2,3-bis(3,4-bis(octyloxy)phenyl)-6,7-difluoroquinoxaline)) (PDFQx-2T) blend film, showing deteriorated photovoltaic properties with increasing film thickness. In contrast, poly(2,2′:5′,2′′-terthiophene-alt-2,3-bis(3,4-bis(octyloxy)phenyl)-6,7-difluoroquinoxaline) (PDFQx-3T) had a similar blend film morphology for both thick and thin active layers, showing a homogeneous and smooth morphology with a face-on orientation and tight π-π stacking (d-spacing = 3.6 ?). The optimized photovoltaic cell based on PDFQx-3T:PC71BM achieved a power conversion efficiency (PCE) of 8% with an open-circuit voltage of 0.74 V, a short-circuit current of 17.19 mA cm-2 and a fill factor of 0.63 at an active layer thickness of ～270 nm. It is still a challenge to develop photovoltaic polymers which allow efficient charge transport and extraction at a device thickness of ～300 nm. Fine-adjustment of intra- and interchain interactions must be considered carefully to achieve high device properties for thick devices without deterioration in the blend morphology and charge recombination. This high PCE at an active layer thickness of ～300 nm may suggest great potential for the mass production of printed polymer solar cells via industrial solution processes.

Columnar catenar bisoxazoles and bisthiazoles

Three new series of catenar liquid crystals 1a-c derived from heterocyclic bisoxazoles and bisthiazoles exhibiting columnar phases were reported. All compounds 1a-c exhibited hexagonal columnar phases, which were confirmed by powder XRD diffractometer. Co

Discotic nickel bis(dithiolene) complexes - Synthesis, optoelectrochemical and mesomorphic properties

Fifteen neutral long-chain-substituted discotic nickel bis(1,2-diphenyl-1, 2-ethenedithiolene) complexes [Ni(dpedt)2], including thirteen new compounds, have been synthesized by new short and efficient synthetic pathways. Physical investigations show that these complexes are thermally stable, possess good electron-accepting properties, and absorb light strongly in the near-infrared spectral region. Electrochemical and optical properties of [Ni(dpedt)2] depend moderately on the functionalities attached to the phenyl rings of the complexes. Their LUMO and HOMO energy levels are in the range -4.7 to -5.0 and -5.7 to -6.0 eV, respectively. Two octa(n-alkoxy)- substituted complexes exhibit a columnar liquid crystalline phase with hexagonal symmetry. These highly soluble complexes are potential candidates for use as electron-accepting and electron-transporting materials for active layers in organic electronic applications, such as field-effect transistors or photovoltaic devices. Electrochemical and optical studies as well as multiphase transition behavior are reported for a series of new nickel bis(dithiolene) complexes. The effects of the nature and position of the functional groupsattached to the periphery of the complexes are investigated. X-ray diffraction measurements regarding the hexagonal columnar mesophase are reported. Copyright

Synthesis of quinoxaline-benzoxale conjugates and mesomorphic properties

A new series of non-discotic heterocyclic compounds 1a-e derived from quinoxaline was prepared and their mesomorphic properties investigated. The crystal and molecular structures of nonmesogenic 2,3-bis(3,4-didodecyloxyphenyl) quinoxaline-6-carboxylic aci

Dibenzo[a,c]phenazine with six-long alkoxy chains to probe optimization of mesogenic behavior

New hexaalkoxydibenzo[a,c]phenazines (HDBPs) with six-carbon long chains have been prepared, and their mesogenic behavior investigated. The incorporation of six peripheral alkoxy groups onto the larger, dipolar core bearing nitrogen atoms showed interesti

Synthesis of unsymmetrical dibenzoquinoxaline discotic mesogens

Unsymmetrical dibenzophenazine discotic mesogens were prepared via the corresponding tetraalkoxybenzfl derivatives. These dibenzophenazines exhibit Colho phases over extremely broad temperature ranges.