{"title":"姜黄素吡唑Pr3+、Nd3+、Eu3+和Gd3+配合物的合成、表征和发光性能","authors":"Ruokuosenuo Zatsu, M. Prabhakar, M. Devi","doi":"10.2139/ssrn.3589132","DOIUrl":null,"url":null,"abstract":"A series of new lanthanide complexes [LnCl 3 . xH 2 O:(L) 3 ] (where; L = curcumin pyrazole and Ln = Pr 3+ , Nd 3+ , Eu 3+ and Gd 3+ have been synthesized in ethanol under reflux conditions for 24 h. The synthesized complexes were characterised by elemental analysis, IR, UV-Vis, fluorescence and TGA. The formations of the nona-coordinated lanthanide complexes have been detected through elemental analysis. In IR-spectra, the formation of the new band at 460 cm -1 could convey the mode of co-ordination of nitrogen atom to the lanthanide. Absorption intensity as well as luminescence properties of the synthesised complexes were analysed through UV-Vis and fluorescence spectra to reveal the formation of complexes. The percentage weight loss of the complexes was studied with TGA analysis to check the thermal stability of the complexes. Further the quantum yields of the ligand and lanthanide complexes have been analyzed to study their comparative luminescence properties.","PeriodicalId":399389,"journal":{"name":"Inorganic Chemistry eJournal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, Characterization and Luminescence Properties of Pr3+, Nd3+, Eu3+ and Gd3+ Complexes with Curcumin Pyrazole\",\"authors\":\"Ruokuosenuo Zatsu, M. Prabhakar, M. Devi\",\"doi\":\"10.2139/ssrn.3589132\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A series of new lanthanide complexes [LnCl 3 . xH 2 O:(L) 3 ] (where; L = curcumin pyrazole and Ln = Pr 3+ , Nd 3+ , Eu 3+ and Gd 3+ have been synthesized in ethanol under reflux conditions for 24 h. The synthesized complexes were characterised by elemental analysis, IR, UV-Vis, fluorescence and TGA. The formations of the nona-coordinated lanthanide complexes have been detected through elemental analysis. In IR-spectra, the formation of the new band at 460 cm -1 could convey the mode of co-ordination of nitrogen atom to the lanthanide. Absorption intensity as well as luminescence properties of the synthesised complexes were analysed through UV-Vis and fluorescence spectra to reveal the formation of complexes. The percentage weight loss of the complexes was studied with TGA analysis to check the thermal stability of the complexes. Further the quantum yields of the ligand and lanthanide complexes have been analyzed to study their comparative luminescence properties.\",\"PeriodicalId\":399389,\"journal\":{\"name\":\"Inorganic Chemistry eJournal\",\"volume\":\"34 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Inorganic Chemistry eJournal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.3589132\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry eJournal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3589132","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
一系列新的镧系配合物[lcl3]。xh2o:(L) 3](其中;L =姜黄素吡唑，Ln = Pr 3+， Nd 3+， Eu 3+和Gd 3+，在乙醇回流条件下合成。用元素分析、IR、UV-Vis、荧光和TGA对合成的配合物进行了表征。通过元素分析发现了非配位镧系配合物的形成。在红外光谱中，在460 cm -1处形成的新能带可以传递氮原子与镧系元素的配位模式。通过紫外可见光谱和荧光光谱分析合成配合物的吸收强度和发光特性，揭示配合物的形成。用热重分析研究了配合物的失重率，考察了配合物的热稳定性。进一步分析了配体和镧系配合物的量子产率，研究了它们的比较发光性质。
Synthesis, Characterization and Luminescence Properties of Pr3+, Nd3+, Eu3+ and Gd3+ Complexes with Curcumin Pyrazole
A series of new lanthanide complexes [LnCl 3 . xH 2 O:(L) 3 ] (where; L = curcumin pyrazole and Ln = Pr 3+ , Nd 3+ , Eu 3+ and Gd 3+ have been synthesized in ethanol under reflux conditions for 24 h. The synthesized complexes were characterised by elemental analysis, IR, UV-Vis, fluorescence and TGA. The formations of the nona-coordinated lanthanide complexes have been detected through elemental analysis. In IR-spectra, the formation of the new band at 460 cm -1 could convey the mode of co-ordination of nitrogen atom to the lanthanide. Absorption intensity as well as luminescence properties of the synthesised complexes were analysed through UV-Vis and fluorescence spectra to reveal the formation of complexes. The percentage weight loss of the complexes was studied with TGA analysis to check the thermal stability of the complexes. Further the quantum yields of the ligand and lanthanide complexes have been analyzed to study their comparative luminescence properties.
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