Transition metal complexes as a new class of photosensitizers for near-infrared lanthanide luminescence

被引:32
作者
Klink, SI
Keizer, H
Hofstraat, HW
van Veggel, FCJM
机构
[1] Univ Twente, Lab Supramol Chem & Technol, NL-7500 AE Enschede, Netherlands
[2] Univ Twente, MESA Res Inst, NL-7500 AE Enschede, Netherlands
[3] Philips Res, Dept Polymers & Organ Chem, NL-5656 AA Eindhoven, Netherlands
关键词
transition metals; lanthanides; luminescence; sensitizers;
D O I
10.1016/S0379-6779(01)00625-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper, we report the near-infrared lanthanide luminescence of neodymium(III) and ytterbium(III) sensitized by energy transfer from the triplet excited state of a transition metal complex. In the present systems, polydentate neodymium(III) and ytterbium(III) complexes have been functionalized with the transition metal complexes ruthenium-tris(bipyridine) or ferrocene as the light harvesting units. Rutheniumtris(bipyridine) and ferrocene have suitable triplet state energies for energy transfer to neodymium(III) and ytterbium(III), and have absorption bands in the visible part of the electromagnetic spectrum. The energy transfer process in the ruthenium-tris(bipyridine) complexes could be studied in detail because the donating state of the antenna (the (MLCT)-M-3 state) is luminescent. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:213 / 216
页数:4
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