Synthesis of selenium bridged metallacycles via oxidative addition of diaryl diselenide across Re-Re bond: Novel one-pot reaction approach

► Oxidative addition of Se-Se bond across Re-Re bond in presence of azine ligands ► Self-assembly of six components results into a metallacycle with pyridyl groups ► Molecular structures are elucidated by single crystal X-ray diffraction analysis. ► Steric hindrance disrupts soft interactions with expansion of void in metallacycles ► Metallacycles with a shape of tweezers exhibit molecular recognition properties.