Electric Literature of 254-60-4, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article in Press, and a compound is mentioned, 254-60-4, 1,8-Diazanaphthalene, introducing its new discovery.
Novel Ir(III) cyclometalates, (dnpy) 2Ir(acac) (2) and fac-Ir(dnpy)3 (3), supported by 2-(1,2-dihydronaphthalen-4-yl)pyridyl ligand (dnpy) were synthesized and characterized. X-ray diffraction study on 3 revealed facial arrangement of three dnpy ligands around the Ir center. Photoluminescence (PL) spectra of 2 exhibited orange emission centered at 590nm, which is almost similar to that observed for 2-naphthylpyridine complex, (napy) 2Ir(acac) ( III ). In contrast, compound 3 displayed blue-shifted, yellow emission at 550nm. Tris-complex 3 showed higher quantum efficiencies than 2 in both the solution and film states. Cyclic voltammetry measurements indicated that replacing naphthyl with 1,2-dihydronaphthyl ring raises both the metal-centered HOMO level and ligand-centered LUMO level in 2 and 3. It was suggested that 1,2-dihydronaphthyl ring has a stronger electron-donating effect than naphthyl ring, while the pi* orbital of dnpy ligand is less stabilized due to partial conjugation of the dihydronaphthyl ring.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Electric Literature of 254-60-4. In my other articles, you can also check out more blogs about 254-60-4
Reference£º
1,217-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N211 – PubChem