Ortho-effects of carboxyl, sulpho and arsono groups on the protonation and dissociation constants of mono-azo and bis-azo chromotropic acid derivatives.
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.
Muk
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AA
Boris Kidric Institute of Nuclear Sciences, Vinca, Beograd, Yugoslavia.
Nikolć
V N
VN
Petrova
T V
TV