Results 51 to 60 of about 29,062 (270)

Eco-friendly approach to access of quinoxaline derivatives using nanostructured pyrophosphate Na2PdP2O7 as a new, efficient and reusable heterogeneous catalyst

BMC Chemistry, 2020
In the present study, we report the synthesis of various quinoxaline derivatives from direct condensation of substituted aromatic 1,2-diamine with 1,2-dicarbonyl catalyzed by nanostructured pyrophosphate Na2PdP2O7 as a new highly efficient ...
Karim Dânoun, Younes Essamlali, Othmane Amadine, Hassan Mahi, Mohamed Zahouily   +4 more
doaj   +1 more source

Side‐Chains Engineered Self‐Assembly of Ortho‐Benzodipyrrole‐Based Acceptors: Comprehensive Exploration of Structure‐Interface‐Photovoltaics Correlations

Advanced Functional Materials, EarlyView.
The side‐chain configuration in the bay region of C‐shaped ortho‐benzodipyrrole‐based non‐fullerene acceptors plays a crucial role in their self‐assembly, single‐crystal structures, and optoelectronic properties. The closely correlated molecular structure and performance underscore the importance of minimizing A–A self‐aggregation and enhancing D–A ...
Yung‐Jing Xue, Chen‐Yu Chang, Chieh‐Ming Hung, Chi‐Chun Tseng, Je‐Wei Chang, Chun‐Jen Su, Chia‐Lin Tsai, Han‐Cheng Lu, Kuo‐Hsiu Huang, Kuei‐Yu Tai, Chien‐Yi Ku, Chia‐Shing Wu, Su‐Ying Chien, Shang‐Da Yang, Bing‐Huang Jiang, Chih‐Ping Chen, Pi‐Tai Chou, U‐Ser Jeng, Yen‐Ju Cheng   +18 more
wiley   +1 more source

Quinoxaline derivatives as attractive electron-transporting materials

Beilstein Journal of Organic Chemistry, 2023
This review article provides a comprehensive overview of recent advancements in electron transport materials derived from quinoxaline, along with their applications in various electronic devices. We focus on their utilization in organic solar cells (OSCs)
Zeeshan Abid, Liaqat Ali, Sughra Gulzar, Faiza Wahad, Raja Shahid Ashraf, Christian B. Nielsen   +5 more
doaj   +1 more source

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

Advanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Bromination of quinoxaline and derivatives: Effective synthesis of some new brominated quinoxalines

Tetrahedron, 2017
Abstract The synthesis of brominated quinoxaline derivatives starting from several kinds of quinoxaline by different bromination strategies was studied. First the synthesis of some brominated quinoxalines was accomplished along with the development of an alternative and effective synthesis of some known compounds.
Sefa Uçar, Selçuk Eşsiz, Selçuk Eşsiz, Arif Daştan   +3 more
openaire   +5 more sources

An Efficient Protocol for the Synthesis of Quinoxaline Derivatives at Room Temperature Using Recyclable Alumina-Supported Heteropolyoxometalates

The Scientific World Journal, 2012
We report a suitable quinoxaline synthesis using molybdophosphovanadates supported on commercial alumina cylinders as catalysts. These catalysts were prepared by incipient wetness impregnation.
Diego M. Ruiz, Juan C. Autino, Nancy Quaranta, Patricia G. Vázquez, Gustavo P. Romanelli   +4 more
doaj   +1 more source

3-{2-[(3-{(E)-2-[4-(Dimethylamino)phenyl]ethenyl}quinoxalin-2-yl)oxy]ethyl}-1,3-oxazolidin-2-one monohydrate

Acta Crystallographica Section E, 2012
In the title compound, C23H24N4O3·H2O, the 1,3-oxazoline ring is nearly planar [maximum deviation = 0.059 (2) Å] and its mean plane is twisted by 30.12 (8)° with respect to the quinoxaline fused ...
Youssef Ramli, Hafid Zouihri, El Mokhtar Essassi, Seik Weng Ng   +3 more
doaj   +1 more source

Acetylene terminated matrix resins [PDF]

, 1985
The synthesis of resins with terminal acetylene groups has provided a promising technology to yield high performance structural materials. Because these resins cure through an addition reaction, no volatile by-products are produced during the processing.
Arnold, F. E., Goldfarb, I. J., Helminiak, T. E., Lee, Y. C.   +3 more
core   +1 more source

1,4-Di-N-oxide quinoxaline-2-carboxamide: Cyclic voltammetry and relationship between electrochemical behavior, structure and anti-tuberculosis activity [PDF]

, 2011
To gain insight into the mechanism of action, the redox properties of 37 quinoxaline-2-carboxamide 1,4-di-N-oxides with varying degrees of anti-tuberculosis activity were studied in dimethylformamide (DMF) using cyclic voltammetry and first derivative ...
Aldana, I. (Ignacio), Ancizu, S. (Saioa), Crawford, P.W. (Philip W.), Gouravaram, S. (S.), Macharam, A. (Abinav), Monge, A. (Antonio), Moreno-de-Viguri, E. (Elsa), Pérez-Silanes, S. (Silvia), Torres, E. (Enrique)   +8 more
core   +1 more source

Materials and Device Engineering Perspective: Recent Advances in Organic Photovoltaics

Advanced Materials, EarlyView.
This review article provides a comprehensive overview of recent advances in organic photovoltaics (OPVs), covering key aspects such as material development, morphology control, stability challenges, and emerging applications—including semitransparent OPVs.
Ying Zhang, Hao Xia, Jiangsheng Yu, Yang Yang, Gang Li   +4 more
wiley   +1 more source