Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Ahmed A. Fadda"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-17 (2023)
Abstract 3-Amino-4,6-dimethylpyrazolopyridine was applied as a precursor for the synthesis of some new pyridopyrazolo-triazine and pyridopyrazolo-triazole derivatives through diazotization, followed by coupling with many 2-cyanoacetamide compounds, e
Externí odkaz:
https://doaj.org/article/5b5137706c474da29bd7ed53d5347ab0
Publikováno v:
BMC Chemistry, Vol 16, Iss 1, Pp 1-20 (2022)
Abstract A new series of pyridine, thiazole, and pyrazole analogues were synthesized. The pyridone analogues 4a-e were synthesized by treating N-aryl-2-cyano-3-(4-(diphenylamino)phenyl)acrylamides 3a-e with malononitrile. Many 4-arylidene-thiazolidin
Externí odkaz:
https://doaj.org/article/9eef2fa7a15c447fbe2f0a093753ef69
Publikováno v:
Nanoscale Research Letters, Vol 17, Iss 1, Pp 1-14 (2022)
Abstract A new series of metal-free organic dyes (SM1-5) with dual anchors are synthesized for application in dye-sensitized solar cells (DSSC). Here, a simple triphenylamine (TPA) moiety serves as the electron donor, while di-cyanoacrylamide and di-
Externí odkaz:
https://doaj.org/article/87b967288240471dba6efaa44ba2f055
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-17 (2022)
Abstract Herein, we present a thorough photovoltaic investigation of four triphenylamine organic sensitizers with D–π–A configurations and compare their photovoltaic performances to the conventional ruthenium-based sensitizer N719. SFA-5–8 are
Externí odkaz:
https://doaj.org/article/8fd6e5dab06546a797b6c5905a03579e
Publikováno v:
ARKIVOC, Vol 2011, Iss 2, Pp 227-239 (2011)
Externí odkaz:
https://doaj.org/article/66d99083647544ca91c26b6cc76ee521
Publikováno v:
ARKIVOC, Vol 2006, Iss 9, Pp 113-156 (2006)
Externí odkaz:
https://doaj.org/article/edbf767bdadc447db29e7fca20e36623
Publikováno v:
Molecules, Vol 22, Iss 6, p 971 (2017)
Diazocoupling reaction of curcumin with different diazonium salts of p-toluidine, 2-aminopyridine, and 4-aminoantipyrine in pyridine yielded the arylhydrazones 2a–c. Arylhydrazone of p-toluidine reacted with urea, thiourea, and guanidine nitrate to
Externí odkaz:
https://doaj.org/article/9644813a592541599c537c2bfdaae884
Autor:
Ahmed A. Fadda, Rasha E. El-Mekawy, Ahmed El-Shafei, Harold S. Freeman, David Hinks, Manal El-Fedawy
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
A series of porphyrin derivatives 2a–f was synthesized, namely, 5,10,15,20-mesotetrakis[p-methoxyphenyl]-21H,23H-porphyrin (2a), 5,10,15,20-mesotetrakis[2,6-dichloro-phenyl]-21H,23H-porphyrin (2b), 5,10,15,20-mesotetrakis[4-hydroxy-3,5-dimethoxyphe
Externí odkaz:
https://doaj.org/article/8cb5f7588ecc4f10a223f98e2d297bdf
Autor:
Ahmed A. Fadda, Khaled M. Elattar
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
Nine variously substituted azo dye derivatives 2–10 of antipyrine were prepared. The effects of the nature and orientation of the substituents on the color and dyeing properties of these dyes for polyester fibers were evaluated. The newly synthesiz
Externí odkaz:
https://doaj.org/article/dbd5a166c97f480ab87b55dd9a0be89d
Autor:
Heba M. El-Shafeai, Safa A. Badawy, Mohamed A. Ismail, Ehab Abdel-Latif, Ahmed A. Fadda, Mohamed R. Elmorsy
Publikováno v:
RSC Advances. 13:9720-9731
We have synthesized new metal-free dyes (HB-1–8) containing bifuran/biphenyl derivatives for dye-sensitized solar cells. Dye HB-3 exhibited the highest efficiency among the eight investigated dyes, reaching 5.51% with a VOC value higher than N3.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d82baa38f748554ec18bf3ebc992a005
https://doi.org/10.1039/d3ra00609c
https://doi.org/10.1039/d3ra00609c