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Anchoring copper–amino acid complexes on silica or in montmorillonite—an FT-IR study

Jakab, Ida Noémi and Hernádi, Klára and Méhn, D. and Pálinkó, István (2003) Anchoring copper–amino acid complexes on silica or in montmorillonite—an FT-IR study. JOURNAL OF MOLECULAR STRUCTURE, 651-65. pp. 109-114. ISSN 0022-2860

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Abstract

Cu(amino acid) complexes were immobilised in mommorillonite 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.

Item Type: Article
Subjects: Q Science / természettudomány > QD Chemistry / kémia
Q Science / természettudomány > QD Chemistry / kémia > QD02 Physical chemistry / fizikai kémia
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 31 May 2013 09:29
Last Modified: 31 May 2013 09:29
URI: http://real.mtak.hu/id/eprint/5400

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