Chen, Jing-Lin published the artcileSynthesis, Characterization, and Photophysical Properties of Heteroleptic Copper(I) Complexes with Functionalized 3-(2′-Pyridyl)-1,2,4-triazole Chelating Ligands, Computed Properties of 219508-27-7, the publication is Inorganic Chemistry (2013), 52(17), 9727-9740, database is CAplus and MEDLINE.
Mononuclear Cu(I) complexes (1–9) with functionalized 3-(2′-pyridyl)-1,2,4-triazole chelating ligands, as well as the halide and/or phosphine ancillary ligands, were synthesized. Complexes 1–9 were fully characterized by elemental anal., NMR spectroscopy, mass spectroscopy, electronic absorption spectroscopy, fluorescence spectroscopy, cyclic voltammetry, and x-ray crystallog. (1–8). They adopt a distorted tetrahedral configuration, and are considerably air-stable in solid state and in solution All these Cu(I) complexes display a comparatively weak low-energy absorption in CH2Cl2 solution, assigned to charge-transfer transitions with appreciable MLCT character, as supported by TD-DFT studies. Cu(I) halide complexes 1–4 each shows bright solid-state emission at room temperature, though they are nonemissive in fluid solutions, in which emission markedly depends on the halide and the substituent on the 2-pyridyl ring. Complexes 5–9 bearing 2-pyridyl functionalized 1,2,4-triazole and phosphine exhibit good photoluminescence properties in solution and solid states at ambient temperature, which are well-modulated via the alteration of the auxiliary phosphine ligand and the structural modification of 3-(2′-pyridyl)-1,2,4-triazole. Cationic complex 6 and neutral derivative 7 can readily be interconverted through the ring inversion of the 1,2,4-triazolyl regulated by the NH ↔ N– transformation.
Inorganic Chemistry published new progress about 219508-27-7. 219508-27-7 belongs to triazoles, auxiliary class Trifluoromethylated Building Blocks, name is 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, and the molecular formula is C8H5F3N4, Computed Properties of 219508-27-7.
Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics