Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Rafat M. El-Khatib"'
Autor:
Faizah S. Aljohani, Tarek El-Dabea, Rafat M. El-Khatib, Aly Abdou, Seraj Alzahrani, Ibrahim Omar Barnawi, Mahmoud Abd El Aleem Ali Ali El-Remaily, Ahmed M. Abu-Dief
Publikováno v:
Journal of Taibah University for Science, Vol 18, Iss 1 (2024)
2-Guanidinobenzimidazole (BIG) and Imidiazole (I) ligands were utilized to synthesize Cu(II), VO(II), Ag(I), and Pd(II) as mixed ligand complexes. All studied molecules were characterized through various spectral, analytical and computational studies
Externí odkaz:
https://doaj.org/article/53b63a54838748ab9e4e34ea04c3a13b
Publikováno v:
Arabian Journal of Chemistry, Vol 10, Iss S2, Pp S3338-S3346 (2017)
The kinetics of hydroxide ion attack on bis(bromosalicylidene alanate)iron (II) (bsali), bis(bromosalicylidene phenylalanate)iron(II) (bsphali), bis(bromosalicylidene aspartate)iron(II) (bsasi), (bromosalicylidene histidinate)iron(II) (bshi), bis(bro
Externí odkaz:
https://doaj.org/article/108a1b4b8ce6463781a89bab001bc0d6
Publikováno v:
Arabian Journal of Chemistry, Vol 10, Iss S2, Pp S1835-S1846 (2017)
New series of Fe(II) complexes and Schiff base amino acids have been designed and synthesized from the bioactive ligands by condensation of 5-bromo-2-hydroxybenzaldehyde and α-amino acids (l-alanine (ala), l-phenylalanine (phala), l-aspartic acid (a
Externí odkaz:
https://doaj.org/article/be7051269a3e41cda50371b7519fc643
Publikováno v:
Arabian Journal of Chemistry, Vol 10, Iss S1, Pp S988-S995 (2017)
Base-catalyzed hydrolysis of coumalic acid (COU) in binary aqueous-methanol and aqueous-acetone mixtures has been studied kinetically at a temperature range from 283 to 313 K. Moreover, the change in the activation energy barrier of COU from water to
Externí odkaz:
https://doaj.org/article/759847b44d37426b9c3e9557b954bf14
Publikováno v:
Journal of Saudi Chemical Society, Vol 21, Iss S1, Pp S128-S135 (2017)
Rate constants for the base hydrolysis of bis(naphthylidene alanate)iron (II) (nali), bis(naphthylidene phenylalanate)iron(II) (nphali), bis(naphthylidene aspartate)iron(II) (nasi), (naphthylidene histidinate)iron(II) (nhi), bis(naphthylidene arginat
Externí odkaz:
https://doaj.org/article/a79cbacaeaff4ffda09dfb499bcccb81
Autor:
Ahmed M, Abu-Dief, Rafat M, El-Khatib, Faizah S, Aljohani, Hessah A, Al-Abdulkarim, Seraj, Alzahrani, Gehad, El-Sarrag, Mohamed, Ismael
Publikováno v:
Computational biology and chemistry. 97
The current research focuses on the treatment of Cr(III), Fe(III) and Cu(II) metal ions with aryl hydrazone ligand named (E)-4-(((diphenylmethylene)hydrazono)methyl)benzene-1,3-diol (DPHB) to afford four novel solid complexes with high yields. Differ
Autor:
Ahmed M. Abu-Dief, Rafat M. El-Khatib, Faizah S. Aljohani, Hessah A. Al-Abdulkarim, Seraj Alzahrani, Gehad El-Sarrag, Mohamed Ismael
Publikováno v:
Computational Biology and Chemistry. 97:107643
Autor:
Rafat M. El-Khatib, Nashwa M. El-Metwaly, Hessah A. AL-Abdulkarim, Faizah S. Aljohani, Asmaa Mahran, Ahmed M. Abu-Dief, Mohamed E. Khalifa, Arwa Alharbi
Publikováno v:
Journal of Molecular Structure. 1246:131139
An alternative sequence of bioactive series, using novel Schiff base derivative (1-Quinolin-8-yliminomethyl-naphthalen-2-ol), was produced (HNQ). Elements analysis, molar conductivity, magnetic moment, IR, 1H NMR, UV-Vis, and TGA were used to define
Autor:
Seraj Alzahrani, Salah Mohamed El Sayed, Gehad El-Sarrag, Fatmah Alkhatib, Mohamed Ismael, Rafat M. El-Khatib, Ahmed M. Abu-Dief
Publikováno v:
Journal of Molecular Structure. 1244:131017
The current research focuses on the treatment of Mn(II) Cu(II) and Fe(III) metal ions with 1-(Benzhydrylidene-hydrazonomethyl)-naphthalen-2-ol (aryl hydrazone DHPN) ligand, producing three new solid complexes with substantial yields. In all mononucle
Autor:
Nashwa M. El-Metwaly, Gaber A.M. Mersal, Arwa Alharbi, Faizah S. Aljohani, Rafat M. El-Khatib, Hessah A. AL-Abdulkarim, Ahmed M. Abu-Dief, Asmaa Mahran
Publikováno v:
Journal of Molecular Liquids. 339:116797
A novel momonuclear metal chelates were derived from Zn(II), Pd(II), VO(II) and Cr(III) ions with azomethine (BSQ) [BSQ = 4-Bromo-2-(quinolin-8-yliminomethyl)-phenol] ligand. The prepared compounds were subjected to different analytical and spectrosc