Solvatochromism and potentiometic studies of some active nitroso- and nitroso-azo- compounds
Open Access
- 30 September 2011
- journal article
- Published by European Journal of Chemistry in European Journal of Chemistry
- Vol. 2 (3), 420-432
- https://doi.org/10.5155/eurjchem.2.3.420-432.407
Abstract
The stability studies of biologically active 2,4-dinitrosoresorcinol, o-carboxy phenylazo-dinitrosoresorcinol, N,N`-bis-[4,4`-(1,3-diphenyltriazine)]-diacetamide, 2-amino-6-phenylazo-pyridin-3-ol, 2-amino-3-hydroxy-pyridin-6-ylazo)-benzoic acid, 4-(2-amino-3-hydroxy-pyridin-6-ylazo)-benzoic acid ethyl ester and N-[4-(2-amino-3-hydroxy-pyridin-6-ylazo)-phenyl]-acetamide compounds were studied. The dissociation constants were determined potentiometrically. The thermodynamic parameters of dissociation were evaluated. Regression analysis is applied for correlating the different parameters. The results help to assign the solute-solvent interactions and the solvatochromic potential of the investigated compounds. The electronic character of the substituent and the chemical nature of the solvent are major factors for the observed solvatochromism.Keywords
This publication has 45 references indexed in Scilit:
- Fish Spoilage Mechanisms and Preservation Techniques: ReviewAmerican Journal of Applied Sciences, 2010
- Structures and Biological Properties of DNA Adducts Derived from N-Nitroso Bile Acid ConjugatesChemical Research in Toxicology, 2005
- Pancreatic Cancer and Drinking Water and Dietary Sources of Nitrate and NitriteAmerican Journal of Epidemiology, 2004
- Cobalt(II), nickel(II) and copper(II) complexes of 5-(2-carboxyphenylazo)-2-thiohydantoinTransition Metal Chemistry, 2003
- Synthesis, Spectra and Electrochemistry of Isomeric DichloroBis-[1-Alkyl-2-(Naphthyl-(α/β)-Azo)Imidazole]Osmium(II): Single Crystal X-Ray Structure of Blue-Violet DichloroBis-[1-Ethyl-2-(Naphthyl-α-Azo) Imidazole]Osmium(II)Journal of Coordination Chemistry, 2002
- Aminolysis of methoxy groups in pyrimidine derivatives. Activation by 5‐nitrosoJournal of Heterocyclic Chemistry, 2002
- Solution study and 2-D layered structures of zinc(II) and cadmium(II) complexes with N-2-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidinyl)-l-methionine as ligandInorganica Chimica Acta, 2000
- Micellar colorimetric determination of iron, cobalt, nickel and copper using 1-nitroso-2-naphtholTalanta, 2000
- Solution and solid study of Zn(II) and Cd(II) complexes with N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxo-pyrimidin-2-yl)glycine as ligand. Crystal structures of [ZnL2(H2O)4]·6H2O and {[Cd(μ-L)Cl(H2O)2]·H2O}nInorganica Chimica Acta, 2000
- Reactions of the aquapentacyanoferrate(II) ion with 2-nitroso-1-naphthol and 2-nitroso-1-naphthol-4-sulphonic acidPolyhedron, 1995