Aspartic acid interaction with cobalt(II) in dilute aqueous solution: A 57Co emission Mössbauer spectroscopic study

Alexander A. Kamnev, Anna V. Tugarova, Krisztina Kovács, Z. Homonnay, E. Kuzmann, A. Vértes

Research output: Contribution to journalArticle

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Abstract

Emission ( 57Co) Mössbauer spectra of the aspartic acid- 57CoCl 2 system were measured at T = 80 K in frozen aqueous solution and in the form of a dried residue of this solution. The Mössbauer spectra, besides a weak contribution from after-effects, showed two Fe 2+/Co 2+ components which were ascribed to octahedrally and tetrahedrally coordinated 57Co II microenvironments in the Asp-cobalt(II) complex. This dual coordination mode may be due to the involvement of the second terminal carboxylic group of aspartic acid in the coordination sphere of Co.

Original languageEnglish
Pages (from-to)101-104
Number of pages4
JournalHyperfine Interactions
Volume206
Issue number1-3
DOIs
Publication statusPublished - Mar 2012

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aspartic acid
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Aspartic Acid
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aqueous solutions
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Keywords

  • Co emission Mössbauer spectroscopy
  • Aspartic acid
  • Cobalt(II) complexes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Aspartic acid interaction with cobalt(II) in dilute aqueous solution : A 57Co emission Mössbauer spectroscopic study. / Kamnev, Alexander A.; Tugarova, Anna V.; Kovács, Krisztina; Homonnay, Z.; Kuzmann, E.; Vértes, A.

In: Hyperfine Interactions, Vol. 206, No. 1-3, 03.2012, p. 101-104.

Research output: Contribution to journalArticle

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