19798-80-2, Name is 4-Chloropyridin-2-amine, molecular formula is C5H5ClN2, Product Details of 19798-80-2, belongs to pyridine-derivatives compound, is a common compound. In a patnet, author is Klemens, Tomasz, once mentioned the new application about 19798-80-2.
Tuning Optical Properties of Re(I) Carbonyl Complexes by Modifying Push-Pull Ligands Structure
In this work, the structure-property relationship was investigated for a series of Re(I) carbonyls [ReCl(CO)(3)(R-terpy-kappa N-2)], [ReCl(CO)(3)(R-dtpy-kappa N-2)], and [ReCl(CO)(3)(R-dppy-kappa N-2)]. The studied compounds bear 2,2′:6′,2 ”-terpyridines (R-terpy), 2,6-di(thiazol-2-yl)pyridines (R-dtpy), and 2,6-di(pyrazin-2-yl)pyridines (R-dppy) functionalized with strongly electron-donating cyclic (piperidine and morpholine) and acyclic (dimethylamine, diphenylamine) amine donor attached to the central pyridine ring of the triimine skeleton via phenylene linkage. Their thermal properties were evaluated using DSC. The ground- and excited-state properties of these systems were elucidated with electrochemistry, absorption and emission spectroscopy, and density-functional theory (DFT)-based calculations. The terpy skeleton was found to efficiently stabilize the LUMO orbital, as manifested by the most negative reduction potentials for Re(I) terpyridine complexes and significant blue-shift of the absorption and emission of [ReCl(CO)(3)(R-terpy-kappa N-2)] in relation to those of Re(I) carbonyls bearing dtpy- and dppy-based ligands. Substitution of the triimines with amine substituents resulted in participation of intraligand charge-transfer (ILCT) transitions, and it was found to be beneficial for hole-transport properties of the Re(I) carbonyls. The constructed nondoped and doped single layer diodes based on Re(I) complexes emitted red light with various intensity.
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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem