{"title":"含有 2,4,6-吡啶三羧酸盐的钕(III)和铽(III)配位聚合物的结构和发光特性","authors":"Hongsheng Wang, Hui Li, Xinhua Chen","doi":"10.1007/s11224-024-02358-6","DOIUrl":null,"url":null,"abstract":"<p>Two lanthanide coordination polymers (<b>CP</b>) of Nd(III) and Tb(III) with 2,4,6-pyridinetricarboxylate ligands were synthesized by reacting Nd(III) or Tb(III) chlorides with 2,4,6-pyridinetricarboxylic acid (H<sub>3</sub>ptc) by hydrothermal method at 180 °C. Their chemical formulas were {[Nd(ptc)(H<sub>2</sub>O)<sub>2</sub>]·H<sub>2</sub>O}<sub>n</sub> (<b>CP-1</b>) and {[Tb(ptc)(H<sub>2</sub>O)<sub>3</sub>]·H<sub>2</sub>O}<sub>n</sub> (<b>CP-2</b>). Two compounds were characterized by IR spectra and element analyses. The crystal structures were determined by X-ray single crystal diffraction. <b>CP</b>-<b>1</b> formed three-dimensional (3D) structure by the connections of coordination bonds between Nd(III) and ptc ligands and <b>CP-2</b> formed two-dimensional (2D) layered structure. They could produce the characteristic f-f transition luminescence of Nd(III) or Tb(III) ion with the excitations of UV-rays. The lifetime for <sup>5</sup>D<sub>4</sub> excited state of Tb(III) in <b>CP-2</b> was 741 μs. And the absolute quantum yield of photoluminescence for <b>CP-2</b> can reach 60% (<i>λ</i><sub>ex</sub> = 295 nm).</p>","PeriodicalId":780,"journal":{"name":"Structural Chemistry","volume":"46 1","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structure and luminescent properties of Nd(III) and Tb(III) coordination polymers with 2,4,6-pyridinetricarboxylate\",\"authors\":\"Hongsheng Wang, Hui Li, Xinhua Chen\",\"doi\":\"10.1007/s11224-024-02358-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Two lanthanide coordination polymers (<b>CP</b>) of Nd(III) and Tb(III) with 2,4,6-pyridinetricarboxylate ligands were synthesized by reacting Nd(III) or Tb(III) chlorides with 2,4,6-pyridinetricarboxylic acid (H<sub>3</sub>ptc) by hydrothermal method at 180 °C. Their chemical formulas were {[Nd(ptc)(H<sub>2</sub>O)<sub>2</sub>]·H<sub>2</sub>O}<sub>n</sub> (<b>CP-1</b>) and {[Tb(ptc)(H<sub>2</sub>O)<sub>3</sub>]·H<sub>2</sub>O}<sub>n</sub> (<b>CP-2</b>). Two compounds were characterized by IR spectra and element analyses. The crystal structures were determined by X-ray single crystal diffraction. <b>CP</b>-<b>1</b> formed three-dimensional (3D) structure by the connections of coordination bonds between Nd(III) and ptc ligands and <b>CP-2</b> formed two-dimensional (2D) layered structure. They could produce the characteristic f-f transition luminescence of Nd(III) or Tb(III) ion with the excitations of UV-rays. The lifetime for <sup>5</sup>D<sub>4</sub> excited state of Tb(III) in <b>CP-2</b> was 741 μs. And the absolute quantum yield of photoluminescence for <b>CP-2</b> can reach 60% (<i>λ</i><sub>ex</sub> = 295 nm).</p>\",\"PeriodicalId\":780,\"journal\":{\"name\":\"Structural Chemistry\",\"volume\":\"46 1\",\"pages\":\"\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-07-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Structural Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s11224-024-02358-6\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s11224-024-02358-6","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Structure and luminescent properties of Nd(III) and Tb(III) coordination polymers with 2,4,6-pyridinetricarboxylate
Two lanthanide coordination polymers (CP) of Nd(III) and Tb(III) with 2,4,6-pyridinetricarboxylate ligands were synthesized by reacting Nd(III) or Tb(III) chlorides with 2,4,6-pyridinetricarboxylic acid (H3ptc) by hydrothermal method at 180 °C. Their chemical formulas were {[Nd(ptc)(H2O)2]·H2O}n (CP-1) and {[Tb(ptc)(H2O)3]·H2O}n (CP-2). Two compounds were characterized by IR spectra and element analyses. The crystal structures were determined by X-ray single crystal diffraction. CP-1 formed three-dimensional (3D) structure by the connections of coordination bonds between Nd(III) and ptc ligands and CP-2 formed two-dimensional (2D) layered structure. They could produce the characteristic f-f transition luminescence of Nd(III) or Tb(III) ion with the excitations of UV-rays. The lifetime for 5D4 excited state of Tb(III) in CP-2 was 741 μs. And the absolute quantum yield of photoluminescence for CP-2 can reach 60% (λex = 295 nm).
期刊介绍：
Structural Chemistry is an international forum for the publication of peer-reviewed original research papers that cover the condensed and gaseous states of matter and involve numerous techniques for the determination of structure and energetics, their results, and the conclusions derived from these studies. The journal overcomes the unnatural separation in the current literature among the areas of structure determination, energetics, and applications, as well as builds a bridge to other chemical disciplines. Ist comprehensive coverage encompasses broad discussion of results, observation of relationships among various properties, and the description and application of structure and energy information in all domains of chemistry.
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