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- Title
Effective Photo- and Triboluminescent Europium(III) Coordination Polymers with Rigid Triangular Spacer Ligands.
- Authors
Hasegawa, Yasuchika; Tateno, Shiori; Yamamoto, Masanori; Nakanishi, Takayuki; Kitagawa, Yuichi; Seki, Tomohiro; Ito, Hajime; Fushimi, Koji
- Abstract
Luminescent EuIII coordination polymers with rigid triangular spacer ligands are reported. The EuIII coordination polymer, [Eu3(hfa)9(tppb)2] n (hfa: hexafluoroacetylacetonate, tppb: tris(4-diphenylphosphorylphenyl)benzene), shows high thermo-stability (decomposition temperature=354 °C) and photoluminescence quantum yield ( Φ4f-4f=82 %, photosensitized energy transfer efficiency=78 %). The triboluminescence efficiency of EuIII coordination polymer with triangular spacers under laser pulse irradiation (Nd:YAG, λ=1064 nm, pulse width=5 ns, pulse energy=0.1 mJ) is calculated to be 49 %. Characteristic triangular structure, high emission quantum yield, effective photosensitized energy transfer, and remarkable triboluminescence properties of EuIII coordination polymers are demonstrated for the first time.
- Subjects
COORDINATION polymers synthesis; EUROPIUM spectra; TRIBOLUMINESCENCE; PHOTOLUMINESCENCE; ENERGY transfer; THERMAL stability; THERMAL properties of polymers
- Publication
Chemistry - A European Journal, 2017, Vol 23, Issue 11, p2666
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201605054