Spectroscopic investigation of indole-3-acetic acid interaction with iron(III)

Citation
Aa. Kamnev et al., Spectroscopic investigation of indole-3-acetic acid interaction with iron(III), J MOL STRUC, 563, 2001, pp. 565-572
Citations number
35
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR STRUCTURE
ISSN journal
00222860 → ACNP
Volume
563
Year of publication
2001
Pages
565 - 572
Database
ISI
SICI code
0022-2860(20010528)563:<565:SIOIAI>2.0.ZU;2-S
Abstract
Fe-III was found to be gradually reduced by indole-3-acetic acid (IAA) in s lightly acidic nitrate solution with further reoxidation of the resulting F e-II upon drying in air, which is reasoned to be of ecological significance considering IAA excretion by many soil micro-organisms. Fe-III-IAA complex was isolated; its composition. some physicochemical properties and structu ral aspects were studied using Mossbauer, FTIR spectroscopic and other tech niques. Possible influence of Fe-III coordination on the redox properties o f the ligand is also considered from the viewpoint of the nature of the bon ding system which involves the conjugated pi -electronic system of the pyrr ole cycle along with the carboxylic O-donor atom. (C) 2001 Elsevier Science B.V. All rights reserved.