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FT-IR spectroscopic investigations adsorption of pyrazinamide and 4-aminopyrimidine by clays

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Author
Akyüz, Sevim
Akyüz, Tanıl
Type
Article
Date
2004-02
Language
en_US
Metadata
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Abstract
The adsorption of pyrazinamide (PZA) and 4-aminopyrimidine (4APM) on natural sepiolite, loughlinite (Na-sepiolite), natural and ion-exchanged montmorillonite (Co- or Cu-montmorillonite) has been investigated using FT-IR spectroscopy. The intercalation of pyrazinamide and 4-aminopyrimidine within natural and ion-exchanged montmorillonites has been shown by X-ray diffraction to increase the interlayer spacing. PZA and 4APM interacted with montmorillonites by direct or indirect coordination ( through water molecules) to the exchangeable cations. The spectroscopic results indicate that PZA or 4APM molecules adsorbed on sepiolite and loughlinite are coordinated to Lewis acidic centers or surface hydroxyls by H-bonding interaction through either one of the pyrimidine ring nitrogen lone pairs ( in the case of 4APM) or carbonyl group ( in the case of PZA).
Subject
adsorption
aminopyrimidine
clay minerals
intercalation
IR spectroscopy
loughlinite
montmorillonite
pyrazinamide
sepiolite
anatolia
raman
minerals
spectra
surface
2-aminopyridine
kil mineralleri
IR spektroskopisi
pirazinamid
sepiyolit
Anadolu
mineraller
spektrumları
yüzey
2-aminopiridin
URI
http://hdl.handle.net/11413/956
Collections
  • Makaleler / Articles [209]
  • Scopus Publications [724]
  • WoS Publications [1016]

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Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS