{"title":"Methyl Maltolate and Ethyl Maltolate Coordinated Oxidovanadium(V) Complexes with N'-(2-Hydroxy-5-methylbenzylidene)-4-trifluoromethylbenzohydrazide: Synthesis, Crystal Structures and Catalytic Epoxidation Property.","authors":"Zhongduo Xiong, Ping Zhang","doi":"10.17344/acsi.2022.7903","DOIUrl":null,"url":null,"abstract":"<p><p>A mononuclear methyl maltolate (Hmm) coordinated oxidovanadium(V) complex [VOL1(mm)] (1), and a mononuclear ethyl maltolate (Hem) coordinated oxidovanadium(V) complex [VOL2(em)] (2), where L1 and L2 are the dianionic form of N'-(2-hydroxy-5-methylbenzylidene)-3-trifluoromethylbenzohydrazide (H2L1) and N'-(2-hydroxy-5-methylbenzylidene)-4-trifluoromethylbenzohydrazide (H2L2), respectively, have been prepared. The hydrazones and the complexes were characterized by elemental analysis, FT-IR and UV-Vis spectra. Structures of H2L1 and the two complexes were further characterized by single crystal X-ray diffraction. The two complexes have similar structures, with the V atoms in octahedral coordination. The hydrazones behave as ONO tridentate ligands with the V atoms. Both complexes have interesting properties on the catalytic epoxidation of cyclooctene.</p>","PeriodicalId":7122,"journal":{"name":"Acta Chimica Slovenica","volume":"70 1","pages":"155-162"},"PeriodicalIF":1.2000,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Chimica Slovenica","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.17344/acsi.2022.7903","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A mononuclear methyl maltolate (Hmm) coordinated oxidovanadium(V) complex [VOL1(mm)] (1), and a mononuclear ethyl maltolate (Hem) coordinated oxidovanadium(V) complex [VOL2(em)] (2), where L1 and L2 are the dianionic form of N'-(2-hydroxy-5-methylbenzylidene)-3-trifluoromethylbenzohydrazide (H2L1) and N'-(2-hydroxy-5-methylbenzylidene)-4-trifluoromethylbenzohydrazide (H2L2), respectively, have been prepared. The hydrazones and the complexes were characterized by elemental analysis, FT-IR and UV-Vis spectra. Structures of H2L1 and the two complexes were further characterized by single crystal X-ray diffraction. The two complexes have similar structures, with the V atoms in octahedral coordination. The hydrazones behave as ONO tridentate ligands with the V atoms. Both complexes have interesting properties on the catalytic epoxidation of cyclooctene.
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