Novel Holmium (Ho) and Praseodymium (Pr) ternary complexes with fluorinated-ligand and 4,5-diazafluoren-9-one

Four ternary complexes Ln 1 and Ln 2 (Ln=Ho and Pr) were synthesized, with 4,4,5,5,6,6,6-heptafluoro-1-(2-thienyl)hexane-1,3-dione and 4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-pentadecafluoro-1-(naphthalen-2-yl)decane-1,3-dione served as main sensitizers, respectively. Their elemental analyses, Fourier Tran...

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Bibliographic Details
Published inMaterials letters Vol. 65; no. 11; pp. 1642 - 1644
Main Authors Dang, Song, Yu, Jing, Yu, Jiangbo, Wang, Xiaofei, Sun, Lining, Feng, Jing, Fan, Weiqiang, Zhang, Hongjie
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.06.2011
Subjects
Antenna effect
Antennas
Energy transfer
Fluorinated-ligand
Fluorination
Fourier transforms
Holmium
ions
Ligands
Luminescence
NIR luminescence
Praseodymium
Fluorinated-ligand
Pr
Antenna effect
NIR luminescence
Ho
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Summary:Four ternary complexes Ln 1 and Ln 2 (Ln=Ho and Pr) were synthesized, with 4,4,5,5,6,6,6-heptafluoro-1-(2-thienyl)hexane-1,3-dione and 4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-pentadecafluoro-1-(naphthalen-2-yl)decane-1,3-dione served as main sensitizers, respectively. Their elemental analyses, Fourier Transform Infrared spectra, and luminescent properties were investigated. The complexes all show the characteristic near-infrared luminescence of corresponding Ln 3+ ions, via an antenna effect. Furthermore, the influence of ligands structure on the luminescence behavior of complexes is discussed and it is believed that the fluorinated alkyl chains of ligands affect the energy transfer in complexes.
Bibliography:http://dx.doi.org/10.1016/j.matlet.2011.02.043
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2011.02.043