Abstract 2,2-dimethyl-6,6,7,7,8,8,8-heptafluoro-3,5-octanedione (fod) fluorinated β-diketone had been used to prepare a series of Ln3+ (Eu or Tb) ternary complexes with monodentate ancillary ligands such as aqua, urea, triphenylphosphineoxide (TPPO) and pyridine-N-oxide (PNO). Prepared ternary materials Eu(fod)3.(aqua)2 (1), Tb(fod)3.(aqua)2 (2), Eu(fod)3.(urea)2 (3), Tb(fod)3.(urea)2 (4), Eu(fod)3.(TPPO)2 (5), Tb(fod)3.(TPPO)2 (6), Eu(fod)3.(PNO)2 (7), Tb(fod)3.(PNO)2 (8) were illustrated through various structural and photo-physical spectroscopic practices. Emission measurement showed characteristics strong emission in red aa well as green spectral region accredited to the electric dipole 5D0→7F2 and 5D4→7F5 hypersensitive transitions of Eu3+ and Tb3+ ions respectively. An inclusive comparative investigation of enhancement features in the luminescence intensity had been carried out to determine the role of ancillary ligands. Improved luminosity was achieved as auxiliary ligands not only substituted the solvent molecules in coordination sphere but also indirectly sensitize metal ion through transfer of energy to emissive level of respective Ln3+ ion from triplet state of ligand. Decay curve specified uniformity in chemical environment around central metal ion. Efficient red and green light materials could be successfully used for fabricating OLEDs.

中文翻译：

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用于高效先进显示器的含氟化 β-二酮和氧供体辅助配体的 Ln(III)-配合物的增强发光的合成和研究

摘要 2,2-二甲基-6,6,7,7,8,8,8-七氟-3,5-辛二酮（fod）氟化β-二酮已被用于制备一系列Ln3+（Eu或Tb）三元化合物。与单齿辅助配体如水、尿素、三苯基氧化膦 (TPPO) 和吡啶-N-氧化物 (PNO) 形成复合物。制备的三元材料Eu(fod)3.(aqua)2 (1), Tb(fod)3.(aqua)2 (2), Eu(fod)3.(urea)2 (3), Tb(fod)3 .(urea)2 (4), Eu(fod)3.(TPPO)2 (5), Tb(fod)3.(TPPO)2 (6), Eu(fod)3.(PNO)2 (7) , Tb(fod)3.(PNO)2 (8) 通过各种结构和光物理光谱实践进行了说明。发射测量显示在红色 aa 和绿色光谱区域中的强发射特征分别归因于 Eu3+ 和 Tb3+ 离子的电偶极子 5D0→7F2 和 5D4→7F5 超敏感跃迁。已经对发光强度中的增强特征进行了全面的比较研究，以确定辅助配体的作用。由于辅助配体不仅取代了配位球中的溶剂分子，而且还通过将能量从配体的三重态转移到各个 Ln3+ 离子的发射水平来间接敏化金属离子，从而提高了发光度。衰减曲线指定了中心金属离子周围化学环境中的均匀性。高效的红光和绿光材料可成功用于制造 OLED。由于辅助配体不仅取代了配位球中的溶剂分子，而且还通过将能量从配体的三重态转移到各个 Ln3+ 离子的发射水平来间接敏化金属离子，从而提高了发光度。衰减曲线指定了中心金属离子周围化学环境中的均匀性。高效的红光和绿光材料可成功用于制造 OLED。由于辅助配体不仅取代了配位球中的溶剂分子，而且还通过将能量从配体的三重态转移到各个 Ln3+ 离子的发射水平来间接敏化金属离子，从而提高了发光度。衰减曲线指定了中心金属离子周围化学环境中的均匀性。高效的红光和绿光材料可成功用于制造 OLED。