title: Solvation and equilibrium studies of some compounds containing azo and nitroso chromophores.
abstract: The stability studies of biologically active phenylazo-dinitroso resorsinol and o-hydroxy phenyl azo-dinitroso resorsinol compounds were studied. The dissociation constants and the thermodynamic parameters of dissociation were evaluated and determined potentiometrically. Regression analysis is applied for correlating the different parameters by using the SPSS program. The results help to assign the solute-solvent interactions and the solvatochromic potential of the investigated compounds.
authors.affiliation: Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
authors.forename: Mamdouh S
authors.initials: MS
authors.lastname: Masoud
authors.affiliation: Medical Laboratory Technology Department, Faculty of Allied Medical Sciences, Pharos University, Alexandria, Egypt.
authors.forename: Hesham M
authors.initials: HM
authors.lastname: Kamel
authors.affiliation: Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt.
authors.forename: Alaa E
authors.initials: AE
authors.lastname: Ali
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D009603:Nitroso Compounds / Q000737:chemistry*; D011199:Potentiometry; D012997:Solvents / Q000737:chemistry; D013053:Spectrophotometry; D013816:Thermodynamics
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents; D009603:Nitroso Compounds; D012997:Solvents
keywords: Azo–nitroso; Distribution of species; Effect of solvents; Potentiometry spectrophotometry