Anchoring copper-amino acid complexes on silica or in montmorillonite - An FT-IR study

I. N. Jakab, K. Hernádi, D. Méhn, T. Kollár, I. Pálinkó

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Cu(amino acid) complexes were immobilised in montmorillonite or on silica gel by two methods (i) cation exchange first followed by ligation (two-step method) or (ii) depositing the ligands onto/into the support, then introducing the metal ion and, finally, filling the empty coordination sites of the central ions by added ligands (three-step method). The amino acids were L-tyrosine, L-histidine or L-aspartic acid. Immobilisation was followed by infrared spectroscopy. Host-guest substances were formed in every Cu2+-amino acid- montmorillonite system, however, significant anchoring occurred on silica gel only when tyrosine was the ligand. The heat stabilities of these host-guest substances were appreciable, complete decomposition only occurred at 673 K.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalJournal of Molecular Structure
Volume651-653
DOIs
Publication statusPublished - Jun 1 2003

Fingerprint

Bentonite
montmorillonite
Silicon Dioxide
amino acids
Copper
tyrosine
Silica Gel
silica gel
silicon dioxide
Ligands
Amino Acids
copper
ligands
Tyrosine
Ions
aspartic acid
histidine
immobilization
Histidine
Aspartic Acid

Keywords

  • Anchoring
  • Cu(amino acid) complexes
  • FT-IR spectroscopy
  • Heat stability
  • Host-guest substances
  • Immobilisation
  • Na-montmorillonite
  • Silica gel

ASJC Scopus subject areas

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

Cite this

Anchoring copper-amino acid complexes on silica or in montmorillonite - An FT-IR study. / Jakab, I. N.; Hernádi, K.; Méhn, D.; Kollár, T.; Pálinkó, I.

In: Journal of Molecular Structure, Vol. 651-653, 01.06.2003, p. 109-114.

Research output: Contribution to journalArticle

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AU - Pálinkó, I.

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