{"doi":"10.1246/bcsj.20140381","title":"Oxidation and Deprotonation of a Ruthenium(II) Complex with Quinoline-2-carbaldehyde (Pyridine-2-carbonyl)hydrazone and Formation of Hydrazonato-Bridged Heterodimetallic Complexes","abstract":"<jats:title>Abstract</jats:title>\n               <jats:p>Reactions of a ruthenium(II) complex containing quinoline-2-carbaldehyde (pyridine-2-carbonyl)hydrazone (HL), trans(P,P)-[RuCl2(PPh3)2(HL)] (1), and 3d-metal(II) chlorides resulted in heterodimetallic complexes, [RuCl2(PPh3)2(µ-L)MCl2] (2M, M = Mn, Fe, Co, Ni, Cu, and Zn), in which the deprotonated hydrazonate (L−) bridged two metal ions in the µ-1(Ru)κ2N,O:2(M)κ3N′,N′′,N′′′ mode. The coordination bond lengths around the Ru and M centers suggested that the oxidation states in the complexes 2M could be assigned as RuIII and MII; this was also supported by magnetic, electrochemical, and spectroscopic measurements. In addition, oxidation of complex 1 by (NH4)2[Ce(NO3)6] gave the corresponding mononuclear RuIII complex with the deprotonated hydrazonate, trans(P,P)-[RuCl2(PPh3)2(L)] (3). It is suggested that oxidation of the Ru center lead to the concerted deprotonation from the hydrazone ligand. Addition of excess HClO4 to complex 3 gave a doubly protonated RuIII complex, 4(ClO4)2; in this complex the hydrazonate moiety was not protonated, but both the quinolyl and pyridyl N atoms were protonated. Complexes 3 and 42+ could be interconverted by the addition of acid or base without changing the oxidation state of the Ru center.</jats:p>","journal":"Bulletin of the Chemical Society of Japan","year":2015,"id":42878,"datarank":0.3830206654409506,"base_score":1.9459101490553132,"endowment":1.9459101490553132,"self_citation_contribution":0.29188652235829704,"citation_network_contribution":0.09113414308265352,"self_endowment_contribution":0.29188652235829704,"citer_contribution":0.09113414308265352,"corpus_percentile":null,"corpus_rank":null,"citation_count":6,"citer_count":2,"citers_with_citation_signal":2,"citers_with_endowment":2,"datacite_reuse_total":8,"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":111414,"name":"Takayoshi Suzuki","orcid":null,"position":1,"is_corresponding":false},{"id":204538,"name":"Yukinari Sunatsuki","orcid":null,"position":2,"is_corresponding":false},{"id":204539,"name":"Masaaki Kojima","orcid":null,"position":3,"is_corresponding":false},{"id":204540,"name":"Kiyohiko Nakajima","orcid":null,"position":4,"is_corresponding":false},{"id":204537,"name":"Asami Mori","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":1.9459101490553132,"endowment":1.9459101490553132,"datacite_reuse_total":8,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"18998881","pmcid":null,"openalex_id":"https://openalex.org/W2068699914","authors":[],"funders":[],"total_grants":0,"fwci":0.5773,"citation_percentile":0.69896937,"influential_citations":0,"citation_trend":[{"year":2015,"count":3},{"year":2018,"count":1},{"year":2019,"count":1},{"year":2023,"count":1}],"oa_status":"closed","license":"https://academic.oup.com/pages/standard-publication-reuse-rights","oa_locations":[{"url":"https://academic.oup.com/bcsj/article-pdf/88/3/480/56277617/bcsj.20140381.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1246/bcsj.20140381","host_type":"journal"}],"fields_of_study":["Metal complexes synthesis and properties","Magnetism in coordination complexes","Lanthanide and Transition Metal Complexes","Chemistry"],"mesh_terms":[],"keywords":["Chemistry","Deprotonation","Ruthenium","Protonation","Hydrazone","Medicinal chemistry","Pyridine","Quinoline","Moiety","Ligand (biochemistry)","Stereochemistry","Metal","Photochemistry","Ion","Organic chemistry","Catalysis"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Clean water and sanitation"}],"linked_datasets":[{"doi":"10.5517/cc13tpf1","title":"CCDC 1037583: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tpg2","title":"CCDC 1037584: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tpd0","title":"CCDC 1037582: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tpcz","title":"CCDC 1037581: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tpby","title":"CCDC 1037580: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tp8w","title":"CCDC 1037578: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tp9x","title":"CCDC 1037579: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"},{"doi":"10.5517/cc13tp7v","title":"CCDC 1037577: Experimental Crystal Structure Determination","publisher":"Cambridge Crystallographic Data Centre","resource_type":"Dataset"}],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-14T07:12:48.300212Z","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":[]}