کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5398465 | 1505891 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Luminescent chiral ionic Ir(III) complexes: Synthesis and photophysical properties
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Three homologous series of luminescent octahedral ionic Ir(III) complexes (1-12) with a dual stereogenic center of general formula Î,Î (R,S)[(ppy)2Ir(R-campy)]X, where ppy=2-phenylpyridine, R-campy=2-methyl-5,6,7,8-tetrahydroquinolin-8-amine (Me-campy) or 8-amino-5,6,7,8-tetrahydroquinolines (H-campy) and as counterions Xâ=Clâ or CH3COOâ have been synthesized and characterized. The NMR characterization of each complex highlighted the diastereoisomeric purity and the absolute configuration has been confirmed by Electronic Circular Dichroism spectroscopy. The absorption and the luminescence properties of the compounds in solution and in solid state have been investigated by UV-vis, steady-state emission and time-correlated single-photon counting spectroscopy. The obtained results from the 12 compounds highlight the difficult to correlate photophysical properties in solution to the stereochemistry, while excited states decay studies of the solid state samples indicate a correlation between photophysics and packing mode which is affected by the different stereochemistry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 170, Part 3, February 2016, Pages 812-819
Journal: Journal of Luminescence - Volume 170, Part 3, February 2016, Pages 812-819
نویسندگان
Loredana Ricciardi, Massimo La Deda, Andreea Ionescu, Nicolas Godbert, Iolinda Aiello, Mauro Ghedini, Marco Fusè, Isabella Rimoldi, Edoardo Cesarotti,