Preparation and Luminescent Properties of a Novel Carbazole Functionalized Bis-¥â-diketone Ligand and Corresponding Eu(III) and Tb(III) Complexes

Bulletin of the Korean chemical society

Rui ren Tang¹  Wei Zhang¹  Chang hui Liu¹  Chang Quan Tang¹ 

关键词: Organic ligand;    Carbazole;    Bis-¥â-diketone;    Eu(III) and Tb(III) complexes;    Luminescent property;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A novel carbazole functionalized bis-�?-diketone type organic ligand, 1,1�?-(2,6-bispyridyl)bis-3-(9-ethylcarbazole- 3-yl)-1,3-propanedione (H₂L) and its corresponding lanthanide complexes Eu₂(L)₃ and Tb₂(L)₃ were successfully prepared. The ligand and complexes were characterized in detail based on FT-IR spectra, ¹H NMR and elemental analysis. The observed UV-Vis absorption and photoluminescence properties of the complexes were investigated, it shows that the Eu(III) and Tb(III) ions can be sensitized efficiently by the ligand (H₂L) to some extent, in particular, the complex Tb₂(L)₃ exhibits a more excellent luminescence property than the Eu(III) complex. Meanwhile, the introduction of the carbazole moiety can enlarge the �?-conjugated system of the ligand and enhance the luminescent intensity of the complexes. The results show that the complexes would be used as excellent luminescent materials.

【 授权许可】

Unknown