Strongly Phosphorescent Iridium(III)-Porphyrins - New Oxygen Indicators with Tuneable Photophysical Properties and Functionalities.

Strongly Phosphorescent Iridium(III)-Porphyrins - New Oxygen Indicators with Tuneable Photophysical Properties and Functionalities.
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DOI:
10.1002/ejic.201100089
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发表时间:
2011-04
影响因子:
2.3
通讯作者:
Klimant, Ingo
Klimant, Ingo
中科院分区:
化学3区
文献类型:
--
作者:
Koren, Klaus;Borisov, Sergey M.;Saf, Robert;Klimant, Ingo

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Synthesis and characterization of four iridium(III)–octaethylporphyrins and a π-extended iridium(III)–benzoporphyrin are presented. Strong room-temperature phosphorescence was observed for all of the complexes with quantum yields of up to 30 %. Axial ligands were introduced to tune the photophysical properties and the solubility. Complexes bearing lipophilic ligands such as pyridine or N-(n-butyl)imidazole were incorporated into polystyrene to obtain optical oxygen sensors. Covalent coupling of the dye is possible by introduction of ligands with binding domains (1-imidazoleacetic acid). This enabled preparation of a water-soluble oxygen probe (by staining bovine serum albumin) and a trace oxygen sensor (by coupling to amino-modified silica gel).
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