Mossbauer and FTIR spectroscopic studies of iron anthranilates

Coordination, structure and some ecological aspects of iron complexation

A. A. Kamnev, E. Kuzmann, Yu D. Perfiliev, G. Vankó, A. Vértes

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23 Citations (Scopus)

Abstract

The data on the coordination and structure of iron(II) and iron(III) anthranilates in the solid state and in aqueous medium are presented and discussed, as studied using Mossbauer (for solid products and frozen solutions) and FTIR spectroscopy (for solid samples). Whereas, in slightly acidic nitrate solutions under aerobic conditions ferric ions can still be gradually reduced by anthranilic (o-aminobenzoic) acid, which may have some ecological significance, in circumneutral media this process is retarded. Mossbauer parameters calculated for iron(II) and iron(III) anthranilates, as well as characteristic vibration modes of certain functional groups involved in coordination with iron cations are discussed. The FTIR data obtained for ferrous anthranilates, as compared to anthranilic acid, definitely exhibit the direct involvement of both the carboxylic and the amino groups of anthranilic acid in coordination with iron.

Original languageEnglish
Pages (from-to)703-711
Number of pages9
JournalJournal of Molecular Structure
Volume482-483
DOIs
Publication statusPublished - May 25 1999

Fingerprint

ortho-Aminobenzoates
Fourier Transform Infrared Spectroscopy
Complexation
Iron
iron
acids
ferric ions
Vibration
Nitrates
Functional groups
Cations
nitrates
vibration mode
Spectrum Analysis
Spectroscopy
Ions
solid state
cations
products

Keywords

  • Anthranilic acid
  • Fourier transform infrared spectroscopy
  • Iron coordination
  • Iron(II) anthranilate
  • Iron(III) anthranilate
  • Mossbauer spectroscopy

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

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title = "Mossbauer and FTIR spectroscopic studies of iron anthranilates: Coordination, structure and some ecological aspects of iron complexation",
abstract = "The data on the coordination and structure of iron(II) and iron(III) anthranilates in the solid state and in aqueous medium are presented and discussed, as studied using Mossbauer (for solid products and frozen solutions) and FTIR spectroscopy (for solid samples). Whereas, in slightly acidic nitrate solutions under aerobic conditions ferric ions can still be gradually reduced by anthranilic (o-aminobenzoic) acid, which may have some ecological significance, in circumneutral media this process is retarded. Mossbauer parameters calculated for iron(II) and iron(III) anthranilates, as well as characteristic vibration modes of certain functional groups involved in coordination with iron cations are discussed. The FTIR data obtained for ferrous anthranilates, as compared to anthranilic acid, definitely exhibit the direct involvement of both the carboxylic and the amino groups of anthranilic acid in coordination with iron.",
keywords = "Anthranilic acid, Fourier transform infrared spectroscopy, Iron coordination, Iron(II) anthranilate, Iron(III) anthranilate, Mossbauer spectroscopy",
author = "Kamnev, {A. A.} and E. Kuzmann and Perfiliev, {Yu D.} and G. Vank{\'o} and A. V{\'e}rtes",
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T2 - Coordination, structure and some ecological aspects of iron complexation

AU - Kamnev, A. A.

AU - Kuzmann, E.

AU - Perfiliev, Yu D.

AU - Vankó, G.

AU - Vértes, A.

PY - 1999/5/25

Y1 - 1999/5/25

N2 - The data on the coordination and structure of iron(II) and iron(III) anthranilates in the solid state and in aqueous medium are presented and discussed, as studied using Mossbauer (for solid products and frozen solutions) and FTIR spectroscopy (for solid samples). Whereas, in slightly acidic nitrate solutions under aerobic conditions ferric ions can still be gradually reduced by anthranilic (o-aminobenzoic) acid, which may have some ecological significance, in circumneutral media this process is retarded. Mossbauer parameters calculated for iron(II) and iron(III) anthranilates, as well as characteristic vibration modes of certain functional groups involved in coordination with iron cations are discussed. The FTIR data obtained for ferrous anthranilates, as compared to anthranilic acid, definitely exhibit the direct involvement of both the carboxylic and the amino groups of anthranilic acid in coordination with iron.

AB - The data on the coordination and structure of iron(II) and iron(III) anthranilates in the solid state and in aqueous medium are presented and discussed, as studied using Mossbauer (for solid products and frozen solutions) and FTIR spectroscopy (for solid samples). Whereas, in slightly acidic nitrate solutions under aerobic conditions ferric ions can still be gradually reduced by anthranilic (o-aminobenzoic) acid, which may have some ecological significance, in circumneutral media this process is retarded. Mossbauer parameters calculated for iron(II) and iron(III) anthranilates, as well as characteristic vibration modes of certain functional groups involved in coordination with iron cations are discussed. The FTIR data obtained for ferrous anthranilates, as compared to anthranilic acid, definitely exhibit the direct involvement of both the carboxylic and the amino groups of anthranilic acid in coordination with iron.

KW - Anthranilic acid

KW - Fourier transform infrared spectroscopy

KW - Iron coordination

KW - Iron(II) anthranilate

KW - Iron(III) anthranilate

KW - Mossbauer spectroscopy

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