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Mössbauer spectroscopic study of the interaction of indole‐3‐acetic acid with iron(III) in aqueous solution
Author(s) -
Kamnev Alexander A.,
Kuzmann Ernö
Publication year - 1997
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216549700201611
Subject(s) - mössbauer spectroscopy , chemistry , aqueous solution , indole 3 acetic acid , acetic acid , solubilization , complex formation , inorganic chemistry , nitrate , transformation (genetics) , nuclear chemistry , organic chemistry , biochemistry , crystallography , auxin , gene
The data of Mössbauer spectroscopic measurements in rapidly frozen 57FeIII nitrate solutions containing indole‐3‐acetic acid (IAA) are presented. The results obtained provide direct evidence that iron(III) is gradually reduced by IAA with the formation of soluble iron(II) complex. It has been found that further drying of the solution in air results in complete re‐oxidation of iron(II) with the formation of iron(III) complex. The structure of the complexes obtained and their possible role in solubilization and transformation of iron species in soil in the presence of IAA secreted by soil microorganisms into the environment are also discussed.