title: Ortho-effects of carboxyl, sulpho and arsono groups on the protonation and dissociation constants of mono-azo and bis-azo chromotropic acid derivatives.
abstract: The effect of carboxyl sulpho and arsono groups on the protonation and dissociation constants of mono-azo and bis-azo chromotropic acid derivatives has been investigated. From the value obtained for the effect of the substituents the equation; ortho-effect = log K(ortho)-log K para has been derived. The causes of the effect are discussed.
authors.affiliation: Boris Kidric Institute of Nuclear Sciences, Vinca, Beograd, Yugoslavia.
authors.forename: A A
authors.initials: AA
authors.lastname: Muk
authors.forename: V N
authors.initials: VN
authors.lastname: Nikolć
authors.forename: T V
authors.initials: TV
authors.lastname: Petrova