Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/576
Title: Brilliant photoluminescence and triboluminescence from ternary complexes of DyIII and TbIII with 3-Phenyl-4-propanoyl-5-isoxazolonate and a Bidentate Phosphine Oxide Coligand.
Authors: Biju, S
Gopakumar, N
Bünzli, J C G
Scopelliti, R
Kim, H K
Reddy, M L P
Keywords: Crystallography
HPPI
DPEPO
Triplet level
Issue Date: 2013
Publisher: American Chemical Society.
Citation: Inorganic Chemistry 52(15):8750–8758;12 Jul 2013
Abstract: Three new lanthanide heterocyclic β-diketonate complexes [Dy(PPI)3(EtOH)2] (1), [Dy(PPI)3(DPEPO)] (2), and [Tb(PPI)3(DPEPO)] (3) [where HPPI = 3-phenyl-4- p ro pa n o y l - 5 - i s o x a z o l one and DPEPO = b i s ( 2 - (diphenylphosphino)phenyl)ether oxide] have been synthesized and fully characterized. Single-crystal X-ray diffraction analyses reveal that these complexes are mononuclear and that the central LnIII ion is coordinated to eight oxygen atoms that are provided by three bidentate β-diketonate ligands and ethanol or bidentate DPEPO in a distorted square antiprismatic geometry. These complexes have high molar absorption coefficients (up to 3 × 104 M−1 cm−1 at 285 nm) and display strong visible and, for DyIII, NIR luminescence upon irradiation at the ligand-centered band in the range 250−350 nm. The emission quantum yields and the luminescence lifetimes at room temperature are 3 ± 0.5% and 15 ± 1 μs for 1, 12 ± 2% and 33 ± 1 μs for 2, and 42 ± 6% and 795 ± 1 μs for 3. Moreover, the crystals of 2 and 3 exhibit brilliant triboluminescence, visible in daylight.
URI: http://hdl.handle.net/123456789/576
Appears in Collections:2013

Files in This Item:
File Description SizeFormat 
2013_0057.pdf
  Restricted Access
466.48 kBAdobe PDFView/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.