Yu. A. Bryleva, L. A. Glinskaya, D. G. Samsonenko, M. I. Rakhmanova, A. V. Artem´ev
{"title":"基于 3,6-双(二苯基膦酰基)哒嗪的发光双核 Eu(III) 和 Tb(III) 配合物","authors":"Yu. A. Bryleva, L. A. Glinskaya, D. G. Samsonenko, M. I. Rakhmanova, A. V. Artem´ev","doi":"10.1134/s0022476624080122","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Isostructural binuclear complexes [Ln<sub>2</sub>L<sub>2</sub>(hfac)<sub>6</sub>] (Ln = Eu, Tb; hfac<sup>–</sup> = hexafluoroacetylacetonate ion) are synthesized by the interaction of [Ln(hfac)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] with 3,6-bis(diphenylphosphinyl)pyridazine (L). According to the single-crystal XRD data, two Ln(hfac)<sub>3</sub> moieties in the complexes are connected by two O,O´-bidentate-bridging ligands L, and the coordination polyhedron Ln@O<sub>8</sub> has the geometry of a triangular dodecahedron. The Eu<sup>3+</sup> and Tb<sup>3+</sup> complexes exhibit characteristic lanthanide-centered photoluminescence in the solid state at 297 K with luminescence quantum yields of 31% and 2% and excited state lifetimes of 707 and 30 μs, respectively, thus indicating that luminescence sensitization by the ligand environment is more effective for Eu<sup>3+</sup> than for Tb<sup>3+</sup>.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Luminescent Binuclear Eu(III) and Tb(III) Complexes Based on 3,6-bis(Diphenylphosphinyl)Pyridazine\",\"authors\":\"Yu. A. Bryleva, L. A. Glinskaya, D. G. Samsonenko, M. I. Rakhmanova, A. V. Artem´ev\",\"doi\":\"10.1134/s0022476624080122\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>Isostructural binuclear complexes [Ln<sub>2</sub>L<sub>2</sub>(hfac)<sub>6</sub>] (Ln = Eu, Tb; hfac<sup>–</sup> = hexafluoroacetylacetonate ion) are synthesized by the interaction of [Ln(hfac)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] with 3,6-bis(diphenylphosphinyl)pyridazine (L). According to the single-crystal XRD data, two Ln(hfac)<sub>3</sub> moieties in the complexes are connected by two O,O´-bidentate-bridging ligands L, and the coordination polyhedron Ln@O<sub>8</sub> has the geometry of a triangular dodecahedron. The Eu<sup>3+</sup> and Tb<sup>3+</sup> complexes exhibit characteristic lanthanide-centered photoluminescence in the solid state at 297 K with luminescence quantum yields of 31% and 2% and excited state lifetimes of 707 and 30 μs, respectively, thus indicating that luminescence sensitization by the ligand environment is more effective for Eu<sup>3+</sup> than for Tb<sup>3+</sup>.</p>\",\"PeriodicalId\":668,\"journal\":{\"name\":\"Journal of Structural Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2024-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Structural Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1134/s0022476624080122\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1134/s0022476624080122","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Luminescent Binuclear Eu(III) and Tb(III) Complexes Based on 3,6-bis(Diphenylphosphinyl)Pyridazine
Abstract
Isostructural binuclear complexes [Ln2L2(hfac)6] (Ln = Eu, Tb; hfac– = hexafluoroacetylacetonate ion) are synthesized by the interaction of [Ln(hfac)3(H2O)2] with 3,6-bis(diphenylphosphinyl)pyridazine (L). According to the single-crystal XRD data, two Ln(hfac)3 moieties in the complexes are connected by two O,O´-bidentate-bridging ligands L, and the coordination polyhedron Ln@O8 has the geometry of a triangular dodecahedron. The Eu3+ and Tb3+ complexes exhibit characteristic lanthanide-centered photoluminescence in the solid state at 297 K with luminescence quantum yields of 31% and 2% and excited state lifetimes of 707 and 30 μs, respectively, thus indicating that luminescence sensitization by the ligand environment is more effective for Eu3+ than for Tb3+.
期刊介绍：
Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.
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