Synthesis and spectroscopic characterization of novel oxido-bridged dinuclear rhenium(V) complex of 2-(aminomethyl)benzimidazole. X-ray crystal structures of [Re2O3Cl4(ambi)2]·CH3COCH3 and [Re2O3Cl4(ambi)2]·CH3CN

► New dinuclear Re(V) complex with a linear Re2O34+ core was synthesized. ► The crystal structures of its solvates were characterized by single crystal X-ray diffraction. ► The complex was characterized by ESI-MS, FT-IR, 1H NMR, and UV-Vis spectroscopy. ► Its structural and electronic properties were also studied by DFT methods. ► Its electronic spectrum have been reproduced by the TD-B3LYP/LANL2DZ method.