期刊
RUSSIAN CHEMICAL BULLETIN
卷 65, 期 6, 页码 1488-1494出版社
SPRINGER
DOI: 10.1007/s11172-016-1475-z
关键词
heterometallic complexes; zinc(II) complexes; cobalt(II) complexes; europium(III) complexes; X-ray diffraction analysis; luminescence; magnetic properties; thermal analysis
资金
- Presidium of the Russian Academy of Sciences
- Federal Agency of Scientific Organizations
- Russian Science Foundation [16-13-10537]
- Russian Science Foundation [16-13-10537] Funding Source: Russian Science Foundation
New heterometallic complexes [MEu(Piv)(5)(1,10-phen)]aEuro cent MeCN (M = Zn2+ (1), Co2+ (2), Piv(-) = (BuCOO-)-C-t, 1,10-phen is 1,10-phenanthroline) were obtained. Luminescence spectra of compound 1 reveal a metal-centered Eu3+ luminescence, the luminescence lifetime is about 1 ms. Using TGA and DSC methods, it was shown that [ZnEu(Piv)(5)(1,10-phen)] is a stable binuclear molecule undergoing a structural transformation in the 210-230 A degrees C temperature range, which leads to a partial transition of the sample into the glass state. Complex 2 does not exhibit luminescence due to the presence of high-spin cobalt(II) ions. The magnetic behavior of 2 according to calculations based on the molecular field model is determined by spin-orbit interactions of cobalt(II) and europium(III) ions.
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