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.
Tulqin, DJURAEV; Rakhmatillo, ESANOV; Makhmudjon, GAFUROV; and Khabibjon, KUSHIEV
"PHYSICAL AND CHEMICAL CHARACTERISTICS OF SUPRAMOLECULAR COMPLEXES OF GLYCIRRIZINIC ACID WITH PHYTOHORMONES,"
CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2020
, Article 14.
Available at: https://uzjournals.edu.uz/cce/vol2020/iss2/14