Comparison of optical properties of tris(4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedionato)europium(III) single crystals with dipyridyl and phenanthroline

Autor:	Joanna Cybińska, K. Kern, Janina Legendziewicz, Larry C. Thompson
Rok vydání:	2008
Předmět:	Photoluminescence Ligand Mechanical Engineering Phenanthroline Metals and Alloys chemistry.chemical_element Photochemistry chemistry.chemical_compound chemistry Mechanics of Materials Absorption band Excited state Materials Chemistry Physical chemistry Lewis acids and bases Spectroscopy Europium
Zdroj:	Journal of Alloys and Compounds. 451:99-103
ISSN:	0925-8388
DOI:	10.1016/j.jallcom.2007.04.087
Popis:	The aim of this work is comparison of the spectroscopic behaviour of two europium compounds with the formula Eu(TAN)3dipy (1) and Eu(TAN)3phen (2) where TAN = 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedionate, dipy = 2,2′dipyridine and phen = 1,10 phenathroline). The synthesized single crystals of the complexes were investigated by the high-resolution photoluminescence spectroscopy both at room and low temperature as well as by the decay times measurements. Both compounds show a very strong red emission after excitation in the UV range of the ligand absorption band. The dynamic of the excited state will be discussed. The paths of energy transfer are analyzed and mechanism of this process will be proposed. The influence of dipyridyl/phenanthroline, the Lewis base second ligand, on spectroscopic characteristic will be displayed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::27fbbb213d1b1a565b32c2d2fb710a98 https://doi.org/10.1016/j.jallcom.2007.04.087 Zobrazit plný text záznamu Full Text from ScienceDirect