{"id":{"repo_id":"wvu","oai_identifier":"oai:researchrepository.wvu.edu:etd-2148"},"canonical_url":"https://search.dev.ndltd.org/etd/wvu/oai:researchrepository.wvu.edu:etd-2148","repository":{"repo_id":"wvu","name":"West Virginia University","base_url":"https://researchrepository.wvu.edu/do/oai/"},"display":{"title":"Surface-enhanced Raman spectroscopic studies of the orientation of organonitriles on metal colloids","abstract":"The orientation of adsorbates on metal colloids was studied by Surface enhanced Raman spectroscopy. We studied the orientation of cyanopyridines, aminomethylpyridines and 4-biphenylcarbonitrile on gold and copper colloids as a function of concentration of the adsorbates. It was found that the orientation of the adsorbate did not change as a function of concentration when adsorbed on gold colloids and was end-on for all concentrations. The orientation of 4-biphenylcarbonitrile was flat-on on gold colloid. The orientation of the adsorbate changed with change in concentration when adsorbed on copper colloids. The orientation was flat-on for higher concentrations and end-on for lower concentrations of 4- and 3-aminomethylpyridines. The orientation was end-on for higher concentrations and flat-on for lower concentrations for 2-aminomethylpyridines when adsorbed on copper colloid. We modeled the surface-adsorbate system using SpartanPro software and calculated the frequencies. The frequencies obtained for these systems were in close agreement with the experimental results.","abstract_html":"The orientation of adsorbates on metal colloids was studied by Surface enhanced Raman spectroscopy. We studied the orientation of cyanopyridines, aminomethylpyridines and 4-biphenylcarbonitrile on gold and copper colloids as a function of concentration of the adsorbates. It was found that the orientation of the adsorbate did not change as a function of concentration when adsorbed on gold colloids and was end-on for all concentrations. The orientation of 4-biphenylcarbonitrile was flat-on on gold colloid. The orientation of the adsorbate changed with change in concentration when adsorbed on copper colloids. The orientation was flat-on for higher concentrations and end-on for lower concentrations of 4- and 3-aminomethylpyridines. The orientation was end-on for higher concentrations and flat-on for lower concentrations for 2-aminomethylpyridines when adsorbed on copper colloid. We modeled the surface-adsorbate system using SpartanPro software and calculated the frequencies. The frequencies obtained for these systems were in close agreement with the experimental results.","abstract_has_math":false,"creators":["Ramakrishnan, Ramaa Nagapattinam"],"institution":null,"degree_name":"MS","degree_level":"Thesis","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Paul W. Jagodzinski."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2000,"date_issued":"2000-08-01T07:00:00Z","date_published":"2000-08-01T07:00:00Z","updated_at":"2026-07-24T06:15:23Z","subjects":["Physical chemistry"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://researchrepository.wvu.edu/etd/1145"],"render_values":[{"text":"https://researchrepository.wvu.edu/etd/1145","href":"https://researchrepository.wvu.edu/etd/1145","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.33915/etd.1145","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Paul W. 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We studied the orientation of cyanopyridines, aminomethylpyridines and 4-biphenylcarbonitrile on gold and copper colloids as a function of concentration of the adsorbates. It was found that the orientation of the adsorbate did not change as a function of concentration when adsorbed on gold colloids and was end-on for all concentrations. The orientation of 4-biphenylcarbonitrile was flat-on on gold colloid. The orientation of the adsorbate changed with change in concentration when adsorbed on copper colloids. The orientation was flat-on for higher concentrations and end-on for lower concentrations of 4- and 3-aminomethylpyridines. The orientation was end-on for higher concentrations and flat-on for lower concentrations for 2-aminomethylpyridines when adsorbed on copper colloid. We modeled the surface-adsorbate system using SpartanPro software and calculated the frequencies. The frequencies obtained for these systems were in close agreement with the experimental results."]},{"key":"dc:title","label":"Title","values":["Surface-enhanced Raman spectroscopic studies of the orientation of organonitriles on metal colloids"]}]}],"canonical_facts":{"dc:contributor":["Paul W. Jagodzinski."],"dc:creator":["Ramakrishnan, Ramaa Nagapattinam"],"dc:date.available":["2019-01-17T08:00:00Z"],"dc:description.abstract":["The orientation of adsorbates on metal colloids was studied by Surface enhanced Raman spectroscopy. We studied the orientation of cyanopyridines, aminomethylpyridines and 4-biphenylcarbonitrile on gold and copper colloids as a function of concentration of the adsorbates. It was found that the orientation of the adsorbate did not change as a function of concentration when adsorbed on gold colloids and was end-on for all concentrations. The orientation of 4-biphenylcarbonitrile was flat-on on gold colloid. The orientation of the adsorbate changed with change in concentration when adsorbed on copper colloids. The orientation was flat-on for higher concentrations and end-on for lower concentrations of 4- and 3-aminomethylpyridines. The orientation was end-on for higher concentrations and flat-on for lower concentrations for 2-aminomethylpyridines when adsorbed on copper colloid. We modeled the surface-adsorbate system using SpartanPro software and calculated the frequencies. The frequencies obtained for these systems were in close agreement with the experimental results."],"dc:identifier":["https://doi.org/10.33915/etd.1145","https://researchrepository.wvu.edu/etd/1145"],"dc:subject":["Physical chemistry"],"dc:title":["Surface-enhanced Raman spectroscopic studies of the orientation of organonitriles on metal colloids"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["MS"]},"updated_at":"2026-07-24T06:15:23Z"}