Spectroscopic and magnetic studies of mixed lanthanide complexes:: LnL3α,α′Dipy in solution and in solid

被引：48

作者：

Borzechowska, M

Trush, V

Turowska-Tyrk, I

Amirkhanov, W

Legendziewicz, J

机构：

[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

[2] Kiev TG Shevchenko State Univ, Dept Chem, UA-2520033 Kiev, Ukraine

[3] Wroclaw Univ Technol, Dept Chem, PL-50370 Wroclaw, Poland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 341卷 / 1-2期

关键词：

LnL(3)bip(1/2bip); X-ray data; radiative and nonradiative processes; energy-transfer; luminescence; excitation spectra; magnetism;

D O I：

10.1016/S0925-8388(02)00075-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New monomeric complexes LnL(3)bip(1/2bip) were synthesized (Ln=Eu3+, Tb3+); L-phosphoro-azo derivative of beta-diketone: CCl3C(O)NP(O)(OCH3)(2) and bip-alpha,alpha'dipyridyl and single crystals were grown. X-Ray diffraction studies were done. The complexes crystallize in the triclinic system, space group P (1) over bar. Magnetic susceptibility and magnetization of the crystals were investigated. High resolution absorption, luminescence and excitation spectra were measured for crystals at 293, 77 and 4 K in order to characterize their physical properties. Radiative and nonradiative processes were analyzed. The role of the ligand singlet and triplet states in energy-transfer as well as the charge-transfer states in emission quenching were studied. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：98 / 106

页数：9

共 23 条

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