Structures, luminescence and magnetic properties of K[Eu1-xGdx(salen)2] complexes

10^TH ANNUAL Chemistry & Mass Spectrometry Congress

OCTOBER 18-19, 2017 OSAKA, JAPAN

Jisuk Lee, Jun-Gill Kang, Youngku Sohn and Seog K Kim

Yeungnam University, Republic of Korea

Posters & Accepted Abstracts: Chem Sci J

Abstract :

Complexes of K[Eu1-xGdx(salen)2] (x=0-1.0) were synthesized and their structural and magneto-luminescent properties were investigated. The complex of K[Eu(salen)2] crystalized in the monoclinic P21/n space group. Exciting the Eu(III) complex with near-UV light resulted in sensitized red luminescence by the energy transfer from the ligand salen to the Eu(III) ion. For K[Eu1-xGdx(salen)2] in acetonitrile, the quantum yield of the sensitized luminescence (qsens) of x=0 was 49%. With increasing x, qsens increased and at x=0.9 qsens became the maximum (64 %). Above x=0.8, with increasing x, qsens decreased. The molar susceptibility of K[Eu1-xGdx(salen)2] were investigated as a function of x using a MPMS SQUID magnetometer. The evaluated Curie constant (C) satisfied the linear relation of C (emu K)=5.202.5x+2.6.

Biography :

Jisuk Lee is currently a master degree student at the School of Chemistry and Biochemistry, Yeungnam University. Her current research interests focus on luminescence of lanthanide metal complexes.
Email:tnrtnrtnr063@naver.com