{"id":{"repo_id":"uno","oai_identifier":"oai:scholarworks.uno.edu:td-1436"},"canonical_url":"https://search.dev.ndltd.org/etd/uno/oai:scholarworks.uno.edu:td-1436","repository":{"repo_id":"uno","name":"University of New Orleans","base_url":"https://scholarworks.uno.edu/do/oai/"},"display":{"title":"Building Metal-Anion Layers within a Preovskite Host","abstract":"Alkali metal halide layers were constructed within Dion-Jacobson (DJ) layered perovskites by a two-step sequential intercalation method. Reductive intercalation with an alkali metal, followed by oxidative intercalation with chlorine gas, leads to the formation of compounds of the general formula, (A2Cl)LaNb2O7 (A = Rb, Cs). Rietveld refinement of X-ray powder diffraction data shows that an alkali metal halide layer is formed between the perovskite blocks. The alkali metal cation is eight-coordinate with 4 oxygens from the perovskite layer and 4 chlorides from the new halide layer; this environment is similar to cesium in the CsCl structure. Thermal analysis indicates that these are low-temperature phases where decomposition begins below 200°C. Details on the synthesis and characterization of this set of compounds are presented and the general utility of this approach discussed.","abstract_html":"Alkali metal halide layers were constructed within Dion-Jacobson (DJ) layered perovskites by a two-step sequential intercalation method. Reductive intercalation with an alkali metal, followed by oxidative intercalation with chlorine gas, leads to the formation of compounds of the general formula, (A2Cl)LaNb2O7 (A = Rb, Cs). Rietveld refinement of X-ray powder diffraction data shows that an alkali metal halide layer is formed between the perovskite blocks. The alkali metal cation is eight-coordinate with 4 oxygens from the perovskite layer and 4 chlorides from the new halide layer; this environment is similar to cesium in the CsCl structure. Thermal analysis indicates that these are low-temperature phases where decomposition begins below 200°C. Details on the synthesis and characterization of this set of compounds are presented and the general utility of this approach discussed.","abstract_has_math":false,"creators":["Zhang, Xiao"],"institution":null,"degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Wiley, John","Stevens, Edwin","Tarr, Matthew"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2006,"date_issued":"2006-08-09T07:00:00Z","date_published":"2006-08-09T07:00:00Z","updated_at":"2026-07-24T05:28:22Z","subjects":[],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarworks.uno.edu/td/415","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Wiley, John","Stevens, Edwin","Tarr, Matthew"]},{"key":"dc:creator","label":"Author","values":["Zhang, Xiao"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarworks.uno.edu/td/415"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Alkali metal halide layers were constructed within Dion-Jacobson (DJ) layered perovskites by a two-step sequential intercalation method. Reductive intercalation with an alkali metal, followed by oxidative intercalation with chlorine gas, leads to the formation of compounds of the general formula, (A2Cl)LaNb2O7 (A = Rb, Cs). Rietveld refinement of X-ray powder diffraction data shows that an alkali metal halide layer is formed between the perovskite blocks. The alkali metal cation is eight-coordinate with 4 oxygens from the perovskite layer and 4 chlorides from the new halide layer; this environment is similar to cesium in the CsCl structure. Thermal analysis indicates that these are low-temperature phases where decomposition begins below 200°C. Details on the synthesis and characterization of this set of compounds are presented and the general utility of this approach discussed."]},{"key":"dc:title","label":"Title","values":["Building Metal-Anion Layers within a Preovskite Host"]}]}],"canonical_facts":{"dc:contributor":["Wiley, John","Stevens, Edwin","Tarr, Matthew"],"dc:creator":["Zhang, Xiao"],"dc:description.abstract":["Alkali metal halide layers were constructed within Dion-Jacobson (DJ) layered perovskites by a two-step sequential intercalation method. Reductive intercalation with an alkali metal, followed by oxidative intercalation with chlorine gas, leads to the formation of compounds of the general formula, (A2Cl)LaNb2O7 (A = Rb, Cs). Rietveld refinement of X-ray powder diffraction data shows that an alkali metal halide layer is formed between the perovskite blocks. The alkali metal cation is eight-coordinate with 4 oxygens from the perovskite layer and 4 chlorides from the new halide layer; this environment is similar to cesium in the CsCl structure. Thermal analysis indicates that these are low-temperature phases where decomposition begins below 200°C. Details on the synthesis and characterization of this set of compounds are presented and the general utility of this approach discussed."],"dc:identifier":["https://scholarworks.uno.edu/td/415"],"dc:title":["Building Metal-Anion Layers within a Preovskite Host"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."]},"updated_at":"2026-07-24T05:28:22Z"}