Spectroscopic studies on some azo compounds and their cobalt, copper and nickel complexes.
Synthesis and characterization of [o-carboxy phenylazo] moiety of barbituric acid, thiobarbituric acid, thiouracil, citrazinic acid, and disodium chromotropate and their complexes derived from cobalt (II), nickel (II), and copper (II) salts were done. The stereochemistry and the mode of bonding of the complexes were achieved based on elemental analysis, NMR, UV-Vis, IR and ESR. The dissociation constants of the free azo ligands are evaluated by spectrophotometric methods.
Masoud
Mamdouh S
MS
Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt. drmsmasoud@yahoo.com
Khalil
Ekram A
EA
Hindawy
Ahmed M
AM
Ali
Alaa E
AE
Mohamed
Eman F
EF
D001391:Azo Compounds / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D009532:Nickel / Q000737:chemistry; D013053:Spectrophotometry; D013055:Spectrophotometry, Infrared
D001391:Azo Compounds; D003035:Cobalt; D003300:Copper; D009532:Nickel