Cadmium (II) Complex Formation with N-Acetylcysteine, Selenourea and Thiourea in Solution

atmire.migration.oldid409
dc.contributor.advisorJalilehvand, Farideh
dc.contributor.authorAmini, Zahra
dc.date.accessioned2012-09-28T21:25:14Z
dc.date.available2012-11-13T08:01:44Z
dc.date.issued2012-09-28
dc.date.submitted2012en
dc.description.abstractCd(II) complexes with N-acetylcysteine (H2NAC), selenourea (SeU), and thiourea (TU) in solution were investigated using NMR and XAS spectroscopic techniques. From the Cd K-edge EXAFS spectrum of a Cd(II)-SeU methanol solution at 200 K containing CCd(II)=0.1 M and CSeU≥0.4 M, the local structure of a Cd(SeU)4 tetrahedral species with Cd-Se bond distance of was determined. NMR measurement of this solution shows a single sharp peak at 578 ppm, which is in agreement with the reported speciation. For Cd(II)-SeU solutions with a lower concentration of selenourea, a mixture of species was observed. NMR spectra of Cd(II)-TU solutions revealed a mixture of species at low TU/Cd(II) mole ratios. The structures of these complexes were determined using Cd K-edge EXAFS spectroscopy, LIII-edge XANES, and NMR. Cd(II)-N-acetylcysteine solutions with CCd(II) = 0.1 M and NAC/Cd(II) mole ratios of 2.0–20.0 at pH = 7.5 and 11.0 have been investigated. They show a mixture of CdS3O3, CdS3O, and CdS4 species at low NAC concentration and species at high NAC concentration.en_US
dc.identifier.citationAmini, Z. (2012). Cadmium (II) Complex Formation with N-Acetylcysteine, Selenourea and Thiourea in Solution (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25190en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/25190
dc.identifier.urihttp://hdl.handle.net/11023/240
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectChemistry
dc.subject.classificationInorganic Chemistryen_US
dc.subject.classificationSpectroscopyen_US
dc.titleCadmium (II) Complex Formation with N-Acetylcysteine, Selenourea and Thiourea in Solution
dc.typemaster thesis
thesis.degree.disciplineChemistry
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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