Adducts of lanthanide acetylacetonates with 5-phenyl-2-(2-pyridy1)-7,8-benzo-6,5-dihydro-1,3,6-triazaindolizine: structure and photoluminescence

作者：Gusev A N^*; Shul' gin V F; Linert W; Hasegawa M; Aleksandrov G G; Eremenko I L

来源：Russian Chemical Bulletin, 2014, 63(7): 1493-1497.

DOI：10.1007/s11172-014-0625-4

• lanthanides
• acetylacetonates
• crystal structure
• 1,3,6-triazaindolizines
• photoluminescence

A series of isostructural complexes of the formula Ln(acac)(3)L (where Hacac is the acetylacetone, L is the 5-phenyl-2-(2-pyridyl)-7,8-benzo-6,5-dihydro-1,3,6-triazaindolizine, Ln are the La-III, Tb-III, Eu-III, and Sm-III) was studied. Molecular and crystal structures of terbium and samarium complexes were established by X-ray diffraction analysis. Luminescence properties of solid samples were studied. Coordination of 5-phenyl-2-(2-pyridyl)-7,8-benzo-6,5-dihydro-1,3,6-triazaindolizine as an additional ligand increases intensity of photoluminescence. Luminescence spectra of compositions EuxTb1-x(acac)(3)L and La0.6Eu0.1Tb0.3(acac)(3)L were studied. A combination of several lanthanide ions allowed us to obtain almost white emission.

• 出版日期2014-7