AKYÜZ, SEVİMAKYÜZ, ZEKİ TANIL2018-08-272018-08-272018-11https://doi.org/10.1016/j.clay.2017.08.018https://hdl.handle.net/11413/2530In this study, the adsorption of 5-Chlorouracil (5-ClU) on natural montmorillonite from Anatolia was investigated using FT-IR and Raman spectroscopy. The 5-ClU is a thymine antagonist and has some antitumor properties. The comparison of the vibrational spectra of the adsorbed 5-ClU with those of the free molecule provided data on the nature and characteristics of the clay organic complexes. The intercalation of 5-ClU within montmorillonite has been shown by X-ray diffraction to increase the interlayer spacing. Vibrational spectroscopy indicates that adsorbed 5-ClU molecules on montmorillonite are coordinated to exchangeable cations, directly or indirectly through water bridges.en-USAdsorptionClays5-ChlorouracilFTIRRamanArticle4446666000074446666000072-s2.0-850283613322-s2.0-85028361332