Influence of apical ligands on Cu-(CC) interaction in Copper(I) halides (Cl−, Br−, I−) π-complexes with an 1,2,4-triazole allyl-derivative: Syntheses, crystal structures and NMR spectroscopy

The first copper(I) π-complexes with 1,2,4-triazole allyl-derivatives were obtained by alternating-current electrochemical synthesis. A new method for synthesis of copper(I) iodide complexes is introduced. High inertia of the complexes in acetonitrile solutions enabled a comparative study of a strength of the Cu(I)-(CC) interaction by means of 1H NMR spectra. Obtained results are consistent with the crystallochemichal analysis.182