具有刚性三角形间隔配体的高效光致发光和摩擦发光铕（III）配位聚合物。

Effective Photo- and Triboluminescent Europium(III) Coordination Polymers with Rigid Triangular Spacer Ligands.

作者信息

Hasegawa Yasuchika, Tateno Shiori, Yamamoto Masanori, Nakanishi Takayuki, Kitagawa Yuichi, Seki Tomohiro, Ito Hajime, Fushimi Koji

机构信息

Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.

Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.

出版信息

Chemistry. 2017 Feb 21;23(11):2666-2672. doi: 10.1002/chem.201605054. Epub 2017 Jan 27.

DOI:10.1002/chem.201605054

PMID:27991702

Abstract

Luminescent Eu coordination polymers with rigid triangular spacer ligands are reported. The Eu coordination polymer, [Eu (hfa) (tppb) ] (hfa: hexafluoroacetylacetonate, tppb: tris(4-diphenylphosphorylphenyl)benzene), shows high thermo-stability (decomposition temperature=354 °C) and photoluminescence quantum yield (Φ =82 %, photosensitized energy transfer efficiency=78 %). The triboluminescence efficiency of Eu 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 Eu coordination polymers are demonstrated for the first time.

摘要

报道了具有刚性三角形间隔配体的发光铕配位聚合物。铕配位聚合物[Eu (hfa) (tppb) ]（hfa：六氟乙酰丙酮，tppb：三(4-二苯基磷酰基苯基)苯）具有高热稳定性（分解温度 = 354 °C）和光致发光量子产率（Φ = 82%，光敏能量转移效率 = 78%）。计算得出，在激光脉冲照射（Nd:YAG，λ = 1064 nm，脉冲宽度 = 5 ns，脉冲能量 = 0.1 mJ）下，具有三角形间隔的铕配位聚合物的摩擦发光效率为49%。首次展示了铕配位聚合物的特征三角形结构、高发射量子产率、有效的光敏能量转移和显著的摩擦发光特性。