Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (8): 1421.doi: 10.7503/cjcu20160126

• Articles Inorganic Chemistry • Previous Articles     Next Articles

Luminescence Sensing of Benzaldehyde and Cation of 3-(2-Carboxy-phenoxy)-phthalicate-based Lanthanide Complexes

DONG Gaoyun, LI Rui, FAN Tingting, LI Jiajia, LI Xia*()   

  1. Department of Chemistry, Capital Normal University, Beijing 100089, China
  • Received:2016-03-03 Online:2016-07-14 Published:2016-07-14
  • Contact: LI Xia E-mail:xiali@cnu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21471104)

Abstract:

Five lanthanide-organic frameworks, [Sm2(bdbc)2(phen)4](1) and [Ln(bdbc)(phen)·(H2O)][Ln=Eu(2), Gd(3), Tb(4), Dy(5), bdbc=3-(2-carboxy-phenoxy)phthalicate, phen=1,10-phenanthroline], have been synthesized and determined by X-ray single-crystal diffraction. Complex 1 is a binuclear molecule and forms a one-dimensional(1D) supramolecular architecture via hydrogen and C—H…π bonds. Complexes 2—5 are isostructural and display a one-dimensional(1D) chain structure, which form a three-dimensional(3D) supramolecular architecture via hydrogen and C—H…π bonds. Complexes 1, 2, 4 and 5 present the characteristic emission of Sm3+, Eu3+, Tb3+ and Dy3+, which are attributed to 4G5/26HJ/2(J=5, 7, 9) transitions of Sm3+, 5D07FJ(J=1—4) transitions of Eu3+, 5D47FJ(J=6, 5, 4, 3) transitions of Tb3+, 4F5/26HJ/2(J=15, 13) transitions of Dy3+, respectively. Furthermore, the luminescence properties of complex 4 were investigated. The results show that complex 4 may be used as a fluorescent probe to detect cation in aqueous solution and benzaldehyde.

Key words: Lanthanide complex, Fluorescent probe, Cation, Benzaldehyde

CLC Number: 

TrendMD: