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首页> 外文期刊>Physical chemistry chemical physics: PCCP >Photosensitized luminescence of novel beta-diketonato Nd(III) complexes in solution
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Photosensitized luminescence of novel beta-diketonato Nd(III) complexes in solution

机译：溶液中新型β-二酮Nd（III）配合物的光敏发光

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摘要

Photosensitized luminescence in the near-infrared region of five low vibrational beta-diketonato neodymium(III) complexes, tris(1,1,1,5,5,5-hexafluoroacetylacetonato)neodymium(III) (1), tris(4,4,5,5,5-pentafluoro-1-pentafluorophenyl-1,3-pentanedionato)neodymiu m(III) (2), tris(4,4,5,5,6,6,6-heptafluoro-1-pentafluorophenyl-1,3-hexanedionato)neody mium(III) (3), tris(4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-pentadecafluoro-1-pentafluorophenyl- 1,3-decanedionato)neodymium(III) (4), and tris[bis(pentafluorobenzoyl)methanato]neodymium(III) (5), were examined by the selective excitation of the ligand moieties in THF-d(8). The intramolecular energy transfer efficiencies from the excited ligands to the central Nd(III) ion were determined and the order of 1 < 2 < 3 < 4 < 5 was obtained. The order of the overlap area between the phosphorescence due to the ligand moieties and the absorption due to Nd(III) in the 400-650 nm spectral region was also increased in the above order. These results suggest that the energy matching of the donor and the acceptor is decisive for the efficient photosensitized luminescence of Nd(III) complexes. [References: 43]
机译：五个低振动β-二酮钕（III）配合物三（1,1,1,5,5,5-六氟乙酰丙酮丙酮）钕（III）（1），三（4,4）的近红外区的光敏发光，5,5,5-五氟-1-五氟苯基-1,3-戊二酮基）odymiu m（III）（2），三（4,4,5,5,6,6,6,6-七氟-1-五氟苯基- 1,3-己二酮基钕（III）（3），三（4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-10-十五氟-1通过选择性激发THF-d（8）中的配体部分，研究了-五氟苯基-1,3-十二烷二酮基）钕（III）（4）和三[双（五氟苯甲酰基）甲基]钕（III）（5）。 ）。测定了从激发的配体到中心Nd（III）离子的分子内能量转移效率，并得到了1 <2 <3 <4 <5的顺序。在400-650nm光谱区域中，由于配体部分导致的磷光与由于Nd（III）引起的吸收之间的重叠区域的顺序也以上述顺序增加。这些结果表明，供体和受体的能量匹配对于Nd（III）配合物的有效光敏发光起决定性作用。 [参考：43]

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