title: New dimeric cyclodiphosph(V)azane complexes of Cr(III), Co(II), Ni(II), Cu(II), and Zn(II): preparation, characterization and biological activity studies.
abstract: The complexes of type [CrLCl](2).3.5H(2)O and [ML(H(2)O)](2).nH(2)O in which M = Co(II); n = 1, Ni(II); n = 4, Cu(II); n = 0.5 and Zn(II); n = 2 ions and L is 1,3-dimethyl-2,4-dioxo-2',4'-bis(2iminothiophene)cyclodiphosph(V)azane, were prepared and their structures characterized by elemental analysis, IR, (1)H NMR, (31)P NMR, EPR, XRD, SEM, TGA, mass, molar conductance, magnetic moment and UV-Visible spectra. Antimicrobial activities have been studied using the agar-disc diffusion technique, and the higher antimicrobial activity has been observed for the Chromium(III) complex compared to the other metal complexes.
authors.affiliation: Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Nasr City, Cairo, Egypt. aalajhaz@hotmail.com
authors.forename: Abdel-Nasser M A
authors.initials: AN
authors.lastname: Alaghaz
authors.forename: Reda A
authors.initials: RA
authors.lastname: Ammar
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology; D019281:Dimerization; D008670:Metals / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D009942:Organometallic Compounds / Q000737:chemistry* / Q000494:pharmacology; D009943:Organophosphorus Compounds / Q000737:chemistry* / Q000494:pharmacology; D013057:Spectrum Analysis; D014961:X-Ray Diffraction
chemical_list: D000890:Anti-Infective Agents; D008670:Metals; D009942:Organometallic Compounds; D009943:Organophosphorus Compounds