Abstract: | 2,6-Diformyl-4-tert-butylphenol bis-ferrocenoylhydrazone (1, H3L) and binuclear copper(II) complexes on its basis Cu2(H2L)(OH)] (2), Cu2(H2L)Cl3]·(3), and Cu2(H2L)(OH)]·2NO3 (4) have been synthesized and investigated. Tautomerism of bis-hydrazone (1) has been studied. |