I synthesized and characterized new homo- and heterodimetallic Eu3+- and Tb3+-containing complexes. Solution-phase luminescence measurements and density functional theory (DFT)-optimized structures indicated that all complexes were nearly isostructural and contained a dimetallic lanthanide core bridged by three oxygen atoms that are covalently bound to the ligand backbone. The homodimetallic Eu3+ complex behaved as a concentration-independent pH sensor that correlates the luminescence-decay rate of the complex to pH. The probable mechanism of pH sensing was attributed to the modulation of a hydroxyl oscillator in the Eu3+ coordination sphere, which was a previously unreported method to sense pH. The heterodimetallic Tb3+/Eu3+ complex displayed energy transfer from Tb3+ to Eu3+ that is unprecedentedly efficient. The observed energy transfer confirmed that the Tb3+-Eu3+ distance in the heterodimetallic complex is within 10 Å and demonstrated a unique interaction between lanthanide ions.
","abstract_html":"<p>I synthesized and characterized new homo- and heterodimetallic Eu3+- and Tb3+-containing complexes. Solution-phase luminescence measurements and density functional theory (DFT)-optimized structures indicated that all complexes were nearly isostructural and contained a dimetallic lanthanide core bridged by three oxygen atoms that are covalently bound to the ligand backbone. The homodimetallic Eu3+ complex behaved as a concentration-independent pH sensor that correlates the luminescence-decay rate of the complex to pH. The probable mechanism of pH sensing was attributed to the modulation of a hydroxyl oscillator in the Eu3+ coordination sphere, which was a previously unreported method to sense pH. The heterodimetallic Tb3+/Eu3+ complex displayed energy transfer from Tb3+ to Eu3+ that is unprecedentedly efficient. The observed energy transfer confirmed that the Tb3+-Eu3+ distance in the heterodimetallic complex is within 10 Å and demonstrated a unique interaction between lanthanide ions.</p>","abstract_has_math":false,"creators":["Moore, Jeremiah David"],"institution":null,"degree_name":"Ph.D.","degree_level":"Open Access Dissertation","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Matthew J. Allen"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-01-02T08:00:00Z","date_published":"2013-01-02T08:00:00Z","updated_at":"2026-07-24T05:59:26Z","subjects":["Chemistry"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.wayne.edu/oa_dissertations/787","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Matthew J. Allen"]},{"key":"dc:creator","label":"Author","values":["Moore, Jeremiah David"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2013-01-01T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Open Access Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Chemistry"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.wayne.edu/oa_dissertations/787"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["I synthesized and characterized new homo- and heterodimetallic Eu3+- and Tb3+-containing complexes. Solution-phase luminescence measurements and density functional theory (DFT)-optimized structures indicated that all complexes were nearly isostructural and contained a dimetallic lanthanide core bridged by three oxygen atoms that are covalently bound to the ligand backbone. The homodimetallic Eu3+ complex behaved as a concentration-independent pH sensor that correlates the luminescence-decay rate of the complex to pH. The probable mechanism of pH sensing was attributed to the modulation of a hydroxyl oscillator in the Eu3+ coordination sphere, which was a previously unreported method to sense pH. The heterodimetallic Tb3+/Eu3+ complex displayed energy transfer from Tb3+ to Eu3+ that is unprecedentedly efficient. The observed energy transfer confirmed that the Tb3+-Eu3+ distance in the heterodimetallic complex is within 10 Å and demonstrated a unique interaction between lanthanide ions.
"]},{"key":"dc:title","label":"Title","values":["Design, Synthesis, And Luminescence Properties Of Bridged Dimetallic Lanthanide Coordination Compounds"]}]}],"canonical_facts":{"dc:contributor":["Matthew J. Allen"],"dc:creator":["Moore, Jeremiah David"],"dc:date.available":["2013-01-01T08:00:00Z"],"dc:description.abstract":["I synthesized and characterized new homo- and heterodimetallic Eu3+- and Tb3+-containing complexes. Solution-phase luminescence measurements and density functional theory (DFT)-optimized structures indicated that all complexes were nearly isostructural and contained a dimetallic lanthanide core bridged by three oxygen atoms that are covalently bound to the ligand backbone. The homodimetallic Eu3+ complex behaved as a concentration-independent pH sensor that correlates the luminescence-decay rate of the complex to pH. The probable mechanism of pH sensing was attributed to the modulation of a hydroxyl oscillator in the Eu3+ coordination sphere, which was a previously unreported method to sense pH. The heterodimetallic Tb3+/Eu3+ complex displayed energy transfer from Tb3+ to Eu3+ that is unprecedentedly efficient. The observed energy transfer confirmed that the Tb3+-Eu3+ distance in the heterodimetallic complex is within 10 Å and demonstrated a unique interaction between lanthanide ions.
"],"dc:identifier":["https://digitalcommons.wayne.edu/oa_dissertations/787"],"dc:subject":["Chemistry"],"dc:title":["Design, Synthesis, And Luminescence Properties Of Bridged Dimetallic Lanthanide Coordination Compounds"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Open Access Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-24T05:59:26Z"}