Bis(triazole) derivatives of organodigermanes: synthesis, structure, and properties

The synthesis and molecular structure of the triazole- containing organodigermane [(4,1-BnC₂HN₃)Ph₂Ge]₂ (C₂HN₃ is 1,2,3-triazole-4,1-diyl) obtained under various conditions of the copper(i)–azide/alkyne cycloaddition are reported. Effective σ,π-conjugation in the compound between Ge–Ge, aryl and heterocyclic groups was established. The optical properties (absorption and fluorescence) of the digermane in MeCN and MeCN/H₂O were evaluated, indicating the influence of the solvent.