The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine(SMILESS: NN1C(C2=NC=CC=C2)=NN=C1C3=NC=CC=C3,cas:1671-88-1) is researched.SDS of cas: 25150-27-0. The article 《Absorption Spectra, Luminescence Properties, and Electrochemical Behavior of Cyclometalated Iridium(III) and Rhodium(III) Complexes with a Bis(pyridyl)triazole Ligand》 in relation to this compound, is published in Inorganic Chemistry. Let’s take a look at the latest research on this compound (cas:1671-88-1).
Two new cyclometalated Rh(III) and Ir(III) complexes have been synthesized, and their absorption spectra, luminescence properties (in rigid matrix at 77 K and in fluid solution at room temperature), and electrochem. behavior have been investigated and compared to those of other similar Rh(III) and Ir(III) cyclometalated species. The new compounds are [Rh(ppy)2(dpt-NH2)](PF6) (1) and [Ir(ppy)2(dpt-NH2)](PF6) (2) (ppy = phenylpyridine anion; dpt-NH2 = 4-amino-3,5-bis(2-pyridyl)-4H-1,2,4-triazole). The absorption spectra of the compounds are dominated by intense ligand-centered bands in the UV region (εmax in the range 104-105 M-1 cm-1) and by moderately intense metal-to-ligand charge transfer bands in the visible region (εmax in the range 103-104 M-1 cm-1). A reversible oxidation occurs for 2 at +1.23 V vs SCE, assigned to removal of an electron from a metal-centered dπ orbital, while an irreversible oxidation is observed for 1 at more pos. potentials (Epeak = +1.51 V vs SCE), assigned to removal of an electron from a metal-ligand (C-) σ-bonding orbital. Both complexes are luminescent in rigid matrixes at 77 K (1, λmax = 458 nm, τ = 160 μs; 2, λmax = 475 nm, τ = 5.8 μs), while only the Ir compound emits in fluid solution at room temperature (λmax = 560 nm, τ = 870 ns, Φ = 0.246). The emission originates from a metal-perturbed, triplet ppy-centered excited state for the Rh species, while a triplet MLCT level is responsible for the emission of the Ir compound The results obtained are a step toward the preparation of photoactive and redox-active multinuclear compounds based on bis(pyridyl)triazole derivative bridges and incorporating Ir(III) and Rh(III) cyclometalated building blocks.
As far as I know, this compound(1671-88-1)SDS of cas: 1671-88-1 can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem