Koren Klaus, Borisov Sergey M, Saf Robert, Klimant Ingo
Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology Stremayrgasse 9, 8010 Graz, Austria, /873-32502 E-mail:
Eur J Inorg Chem. 2011 Apr;2011(10):1531-1534. doi: 10.1002/ejic.201100089. Epub 2011 Feb 23.
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).
介绍了四种铱（III）-八乙基卟啉和一种π-扩展铱（III）-苯并卟啉的合成与表征。所有配合物均观察到强烈的室温磷光，量子产率高达30%。引入轴向配体以调节光物理性质和溶解度。将带有亲脂性配体（如吡啶或N-（正丁基）咪唑）的配合物掺入聚苯乙烯中以获得光学氧传感器。通过引入具有结合域的配体（1-咪唑乙酸），染料的共价偶联成为可能。这使得制备水溶性氧探针（通过对牛血清白蛋白进行染色）和痕量氧传感器（通过与氨基修饰的硅胶偶联）成为可能。
