{"doi":"10.1002/chem.201700478","title":"Supramolecular Assembly Mediated by Metal Ions in Aqueous Solution and Its Application in Their Analysis","abstract":"<jats:title>Abstract</jats:title><jats:p>A water‐soluble fluorescent sensor based on the interaction of twisted cucurbit[14]uril (<jats:italic>t</jats:italic>Q[14]) and thiazole orange (TO) in aqueous solution was developed. Formation of the <jats:italic>t</jats:italic>Q[14]/TO complex gives rise to stronger fluorescence in both neutral and acidic aqueous solutions compared with that of free TO. Further experiments on the interaction of the <jats:italic>t</jats:italic>Q[14]/TO complex with metal ions revealed that, from a series of nineteen selected common metal ions, 1) only Hg<jats:sup>2+</jats:sup> can lead to fluorescence enhancement and then quenching of the <jats:italic>t</jats:italic>Q[14]/TO (2:1) complex in neutral aqueous solution; 2) only Ba<jats:sup>2+</jats:sup> can induce fluorescence quenching of the <jats:italic>t</jats:italic>Q[14]/TO (2:1) complex in aqueous HCl solution (pH 2); furthermore, the <jats:italic>t</jats:italic>Q[14]/TO/Ba<jats:sup>2+</jats:sup> systems exhibit reversible changes in fluorescent intensity on successively adding SO<jats:sub>4</jats:sub><jats:sup>2−</jats:sup> and Ba<jats:sup>2+</jats:sup>; and 3) only Ba<jats:sup>2+</jats:sup> or Pb<jats:sup>2+</jats:sup> can induce fluorescence quenching of the <jats:italic>t</jats:italic>Q[14]/TO (15:1) complex in aqueous HCl solution (pH 2). Thus, the <jats:italic>t</jats:italic>Q[14]/TO complex can act as a supramolecular fluorescence‐based sensor for the determination of Hg<jats:sup>2+</jats:sup>, Ba<jats:sup>2+</jats:sup>, and Pb<jats:sup>2+</jats:sup> ions.</jats:p>","journal":"Chemistry – A European Journal","year":2017,"id":28298,"datarank":0.5488090170910604,"base_score":2.70805020110221,"endowment":2.70805020110221,"self_citation_contribution":0.40620753016533157,"citation_network_contribution":0.14260148692572894,"self_endowment_contribution":0.40620753016533157,"citer_contribution":0.14260148692572894,"corpus_percentile":null,"corpus_rank":null,"citation_count":14,"citer_count":6,"citers_with_citation_signal":6,"citers_with_endowment":6,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":158876,"name":"Qing Tang","orcid":null,"position":1,"is_corresponding":false},{"id":158877,"name":"Zhong‐Zheng Gao","orcid":null,"position":2,"is_corresponding":false},{"id":158878,"name":"Sheng‐Chao Qiu","orcid":null,"position":3,"is_corresponding":false},{"id":1379,"name":"Ying Huang","orcid":"0000-0003-1145-3606","position":4,"is_corresponding":false},{"id":158879,"name":"Zhu Tao","orcid":null,"position":5,"is_corresponding":false},{"id":13180,"name":"Jing Zhang","orcid":"0000-0002-5970-0509","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":2.70805020110221,"endowment":2.70805020110221,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"28509360","pmcid":null,"openalex_id":"https://openalex.org/W2616037720","authors":[],"funders":[{"funder_name":"National Natural Science Foundation of China","grant_id":"21562015","title":null}],"total_grants":1,"fwci":1.1874,"citation_percentile":0.750661,"influential_citations":0,"citation_trend":[{"year":2017,"count":1},{"year":2018,"count":2},{"year":2019,"count":3},{"year":2020,"count":2},{"year":2021,"count":2},{"year":2022,"count":1},{"year":2023,"count":2},{"year":2024,"count":1}],"oa_status":"closed","license":"http://onlinelibrary.wiley.com/termsAndConditions#vor","oa_locations":[{"url":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchem.201700478","host_type":"publisher"},{"url":"https://chemistry-europe.onlinelibrary.wiley.com/doi/pdf/10.1002/chem.201700478","host_type":"publisher"},{"url":"https://doi.org/10.1002/chem.201700478","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/28509360","host_type":"repository"}],"fields_of_study":["Molecular Sensors and Ion Detection","Supramolecular Chemistry and Complexes","Luminescence and Fluorescent Materials","Chemistry","Medicine"],"mesh_terms":[],"keywords":["Aqueous solution","Fluorescence","Metal ions in aqueous solution","Chemistry","Quenching (fluorescence)","Supramolecular chemistry","Thiazole","Ion","Qualitative inorganic analysis","Metal","Photochemistry","Inorganic chemistry","Molecule","Physical chemistry","Stereochemistry","Organic chemistry","Cations","Sensors","Host-guest Systems"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Clean water and sanitation"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-08T21:12:11.778672Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}