...
首页> 外文期刊>Crystal growth & design >Phosphorescent acentric cuprous halide coordination polymers for nolinear optical materials
【24h】

Phosphorescent acentric cuprous halide coordination polymers for nolinear optical materials

机译:用于非线性光学材料的磷光非中心卤化亚铜配位聚合物

获取原文
获取原文并翻译 | 示例
           

摘要

Three phosphorescent acentric cuprous halide coordination polymers, namely, [Cu-2(pyt)Cl] (1), [Cu-2(pyt)Br] (2), and [Cu-5(pytH)(3)Cl-5] (3) have been synthesized through the treatment of copper halides with achiral ligand pyridine-4-thiol (pyHt) by the hydro(solvo)thermal method. Complexes 1 and 2 are isostructural and exhibit three-dimensional (3-D) pillar-layered structures constructed by [Cu2SCl](infinity)/[Cu2SBr](infinity) layers and pyridine pillars. The [Cu2SCl](infinity) layer can be viewed as a fusion of zigzag [CuS](infinity) and [CuCl](infinity) chains. Alternately, the [Cu2SCl](infinity) layers can be viewed as a fusion of six-membered Cu3S2Cl and Cu3Cl2S rings. Complex 3 shows a [Cu5S3Cl](infinity) chain decorated by terminal chlorides and pyridine rings, in which the six Cu(I) atoms are linked by three mu(3)-S atoms and one mu(3)-CI into a Cu6S3Cl cage, and a fusion of Cu6S3Cl cages via sharing Cu sites results in a one-dimensional [Cu5S3Cl](infinity) chain. At ambient temperature, 1, 2, and 3 show a strong yellow or red emission assigned from ligandto-metal charge transfer (LMCT) and/or metal-to-ligand charge-transfer (MLCT) character and a weak higher energy blue emission band assigned from halide to pyridine pi* charge transfer. Their noncentrosymmetric structures are confirmed by measurement of second harmonic generation efficiency.
机译:三种磷光非中心卤化亚铜配位聚合物,即[Cu-2(pyt)Cl](1),[Cu-2(pyt)Br](2)和[Cu-5(pytH)(3)Cl-5文献(3)是通过水(溶剂)热法用非手性配体吡啶-4-硫醇(pyHt)处理卤化铜而合成的。配合物1和2是同构的,并显示由[Cu2SCl](无限)/ [Cu2SBr](无限)层和吡啶柱构成的三维(3-D)柱层结构。 [Cu2SCl](无穷大)层可以看成之字形[CuS](无穷大)和[CuCl](无穷大)链的融合。或者,可以将[Cu2SCl](无穷大)层视为六元Cu3S2Cl和Cu3Cl2S环的融合。配合物3显示由末端氯化物和吡啶环修饰的[Cu5S3Cl](无穷大)链,其中六个Cu(I)原子通过三个mu(3)-S原子和一个mu(3)-Cl连接成Cu6S3Cl笼,并通过共享Cu位点融合Cu6S3Cl笼,从而形成一维[Cu5S3Cl](无限)链。在环境温度下,1、2和3显示出由配体到金属的电荷转移(LMCT)和/或金属到配体的电荷转移(MLCT)特性引起的强黄色或红色发射,以及弱的较高能量的蓝色发射带从卤化物到吡啶π*电荷转移。通过测量二次谐波的产生效率可以确认它们的非中心对称结构。

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