引用本文:
杨艳红, 李野, 牛淑云, 金晶, 迟玉贤. 系列Ln(Ⅲ)配位聚合物(Ln:Eu,Sm,Tb,Gd)的合成及其荧光分析[J]. 应用化学,
2010, 27(9): 1055-1060.
doi:
10.3724/SP.J.1095.2010.90651
Citation: YANG Yan-Hong, LI Ye, NIU Shu-Yun, JIN Jing, CHI Yu-Xian. Preparation and Fluorescence of Lanthanide(Ⅲ) Coordination Polymers (Ln:Eu,Sm,Tb,Gd)[J]. Chinese Journal of Applied Chemistry, 2010, 27(9): 1055-1060. doi: 10.3724/SP.J.1095.2010.90651
Citation: YANG Yan-Hong, LI Ye, NIU Shu-Yun, JIN Jing, CHI Yu-Xian. Preparation and Fluorescence of Lanthanide(Ⅲ) Coordination Polymers (Ln:Eu,Sm,Tb,Gd)[J]. Chinese Journal of Applied Chemistry, 2010, 27(9): 1055-1060. doi: 10.3724/SP.J.1095.2010.90651
系列Ln(Ⅲ)配位聚合物(Ln:Eu,Sm,Tb,Gd)的合成及其荧光分析
摘要:
采用水热法合成了4个具有1D结构的Ln(Ⅲ)配位聚合物,[Eu2(C9H7O2)6(C9H7O2H)(C2H5OH)]n(1)、[Sm(C9H7O2)3]n(2)、[Tb(C9H7O2)3]n(3)和[Gd(C9H7O2)3]n>(4)(C9H8O2=肉桂酸)。通过X射线单晶衍射确定了它们的结构。这4个Ln(Ⅲ)配合物中,Ln(Ⅲ)的配位数均为9,桥配体均为肉桂酸根,但其配位方式有差异。对配合物进行了IR、UV-Vis-NIR和荧光光谱等表征。分析了各配合物的荧光发射,结果表明,在可见区,配合物1发射较明显的红光,配合物2、3发射绿光,配合物4发射蓝光,但很弱。讨论了具有刚柔相混杂性质的肉桂酸配体对配位聚合物的构筑及稀土离子发光的影响。
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关键词:
- Ln(Ⅲ)配位聚合物
- / 晶体结构
- / 发光性质
English
Preparation and Fluorescence of Lanthanide(Ⅲ) Coordination Polymers (Ln:Eu,Sm,Tb,Gd)
Abstract:
Four one-dimensional(1D) Ln(Ⅲ) coordination polymers[Eu2(C9H7O2)6(C9H7O2H)(C2H5OH)]n(1)、[Sm(C9H7O2)3]n(2)、[Tb(C9H7O2)3]n(3) and[Gd(C9H7O2)3]n(4)(C9H8O2=cinnamate acid) were synthesized by hydrothermal method,and their structures were determined by single-crystal X-ray diffraction.The Ln(Ⅲ) ions were nine-coordinated in these four complexes,and the bridging ligands were all cinnamate groups.However,the coordination environments of the central Ln(Ⅲ) ions were appreciably different.The complexes were characterized by IR,UV-Vis-NIR and fluorescence spectroscopy.The study on luminescent property in the visible region reveals that complex 1 emits red light,complexes 2 and 3 emit green light,but complex 4 emits feeblish blue light.In addition,the influence of the cinnamic ligand with softness and rigidity on the construction of coordination polymers and the luminescence of Ln(Ⅲ) ions was discussed.
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Key words:
- Ln(Ⅲ) coordination polymers
- / crystal structure
- / luminescence property
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