Reference of 19493-44-8, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.19493-44-8, Name is 1-Chloroisoquinoline, molecular formula is C9H6ClN. In a Article，once mentioned of 19493-44-8
A new family of mononuclear (1?2) and dinuclear (3?5) cationic iridium(III) complexes have been synthesized and fully characterized. These complexes contain 2-(4-(trifluoromethyl)phenyl)pyridine (cf3ppy, L1) and 1-(4-(trifluoromethyl)phenyl)isoquinoline (cf3piq, L2) as cyclometalating ligands, 1,10-phenanthroline (LX-1) as the ancillary ligand and 1,4-bis(1-phenyl-1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzene (biphen, LX-2) as the bridging ligand. The crystal structure of LX-2 has been determined by X-ray analysis. All of the complexes are green-red emissive with quantum yields of 16.6?93.5 % and lifetimes of 1.66?2.89 mus in solution at room temperature. Density functional theory (DFT) calculations have been carried out to gain insight into the nature of the low-lying transitions and also to rationalize the electrochemical and photophysical properties. These research results reveal that the pi-conjugation system of C^N ligands and the diiridium system with conjugated bridging ligand are both benefical for the red-shift of the absorption and emission spectra.
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem