PHYSICAL AND CHEMICAL CHARACTERISTICS OF SUPRAMOLECULAR COMPLEXES OF GLYCIRRIZINIC ACID WITH PHYTOHORMONES-Reference-Cited by-同舟云学术

PHYSICAL AND CHEMICAL CHARACTERISTICS OF SUPRAMOLECULAR COMPLEXES OF GLYCIRRIZINIC ACID WITH PHYTOHORMONES

Published:2020-06-20 Issue: Volume: Page:66-70
ISSN:2181-1121
Container-title:CHEMISTRY AND CHEMICAL ENGINEERING
language:en
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Abstract

The process of formation of supramolecular complexes of glycyrrhizinic acid with some phytohormones (indolylacetic acid, indolylbutyric acid, α-naphthyl acetic acid and kinetin) were studied with the aim of creation the plant growth stimulator. The complexes structure was studied using IR and UV spectroscopy methods. The prepared compounds described by some physicochemical parameters. The stability constants and stoichiometric composition of complexes were determined in an aqueous solution at pH of 7,2 using UV spectrometry method. In result, all complexes have composition as 1:1 ratio, except the kinetin complex which has 2:1 ratio. The stability constants were equal: KGA:IAA=1,86±1×104; KGA:IBA=2,51±1×103; KGA:NAA =2,70±1×103 и KGA:К=5,07±1×105. The Gibbs free energies of complex formation were calculated.

Publisher

Uzbekistan Research Online

Subject

General Medicine

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