Preferential azido bridging regulating the structural aspects in cobalt(III) and copper(II)-Schiff base complexes: Syntheses, magnetostructural correlations and catalytic studies

► Azide ions regulate the geometry of the complexes. ► Highest magnitude of J = −252(1) cm−1 was obtained for singly μ1,3-N3 bridged CuII-Schiff base complex. ► CoIII-Schiff base-PhIO system in alkene oxidation results abnormally high t.o.n.