| Tartalom: |
http://real.mtak.hu/5304/ |
| Archívum: |
MTA Könyvtár |
| Gyűjtemény: |
Status = Published
Type = Article
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| Cím: |
Montmorillonite intercalated Cu(II)-histidine complex- synthesis, characterisation and superoxide dismutase activity
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| Létrehozó: |
Szilágyi, István
Labádi, Imre
Hernádi, Klára
Kiss, Tamás
Pálinkó, István
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| Kiadó: |
Elsevier
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| Dátum: |
2005
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| Téma: |
QD02 Physical chemistry / fizikai kémia
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| Tartalmi leírás: |
Cu(II)-L-histidine complex was prepared between the layers of montmorillonite by introducing the Cu 21 ions by ion exchange first, then allowing complexation by adding the ligand molecules to the Suspension of the host. Structural characterisation was performed by FT-IR and EPR spectroscopies and thermal analysis. Two types of intercalated complex were identified: mainly pentacoordinated complex was formed with the Cu2+ ions coordinating to skeletal oxygens of the host accompanied by small amount of tetracoordinated complex anchored to the host via hydrogen bond through a COO- - skeletal OH interaction. The montmorillonite intercalated complexes displayed superoxide dimutase activity. Although it was lower than that of the host-firee complex, the host-guest Substance could be easily separated from the reaction Mixture and Could be used several times Without significant loss of activity.
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| Típus: |
Article
PeerReviewed
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| Formátum: |
text
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| Azonosító: |
Szilágyi, István and Labádi, Imre and Hernádi, Klára and Kiss, Tamás and Pálinkó, István (2005) Montmorillonite intercalated Cu(II)-histidine complex- synthesis, characterisation and superoxide dismutase activity. STUDIES IN SURFACE SCIENCE AND CATALYSIS, 158. pp. 1011-1018. ISSN 0167-2991
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