...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Structure and photophysics of near-infrared emissive ytterbium(III) monoporphyrinate acetate complexes having neutral bidentate ligands
【24h】

Structure and photophysics of near-infrared emissive ytterbium(III) monoporphyrinate acetate complexes having neutral bidentate ligands

机译：具有中性双齿配体的近红外发射mono（卟啉）acetate配合物的结构和光物理性质

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Substitution reactions between [Yb(TPP)(OOCCH3)(CH3OH)(2)] (1) and neutral bidentate ligands NN led to the formation of monoporphyrinate ytterbium(III) complexes [ Yb( TPP)( OOCCH3)( NN)] (TPP = 5,10,15,20-tetraphenylporphyrinate anion; NN = 4-methyl-1,10-phenanthroline (2), 1,10-phenanthroline ( 3), 4,7-dimethyl-1,10-phenanthroline ( 4), 5,6-epoxy-5,6-dihydroxy-1,10-phenanthroline ( 5) and 2,2'-dipyridylamine (6)). Single-crystal X-ray diffraction analysis revealed that ytterbium( III) ions in 1 and 6 were seven-coordinate with OOCCH3- in monodentate coordination, whereas those in 2, 3, 4 and 5 were eight-coordinate with OOCCH3- in bidentate coordination. The visible emission ( 650 and 720 nm) from the porphyrin and near-infrared (NIR) emission ( 980 and 1003 nm) from ytterbium( III) ion were observed for all complexes. The eight-coordinate complexes exhibited stronger NIR emission and longer lifetimes in toluene solution than the seven-coordinate complexes. The NIR emission of complexes with decreased lifetimes was also observed when they were blended into organic polymer PMMA.
机译：[Yb（TPP）（OOCCH3）（CH3OH）（2）]与中性双齿配体NN之间的取代反应导致单卟啉ate（III）配合物的形成[Yb（TPP）（OOCCH3）（NN）]（ TPP = 5,10,15,20-四苯基卟啉阴离子; NN = 4-甲基-1,10-菲咯啉（2），1,10-菲咯啉（3），4,7-二甲基-1,10-菲咯啉（4 ），5,6-环氧-5,6-二羟基-1,10-菲咯啉（5）和2,2'-二吡啶胺（6））。 X射线单晶衍射分析显示，1和III离子分别在1和6中与OOCCH3-呈七配位，在单齿配位中，而在2,3、4和5中的离子与OOCCH3-呈八配位，而OOCCH3-在二齿配位中。 。对于所有配合物，均观察到了卟啉的可见光发射（650和720 nm）和（III）离子的近红外（NIR）发射（980和1003 nm）。八坐标配合物在甲苯溶液中比七坐标配合物表现出更强的近红外发射和更长的寿命。当将它们掺入有机聚合物PMMA中时，还观察到了寿命降低的复合物的NIR发射。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号