Cis-dioxidomolybdenum(VI) complexes with chiral tetradentate Schiff bases: Synthesis, spectroscopic characterization and catalytic activity in sulfoxidation and epoxidation

New chiral mononuclear cis-dioxidomolybdenum(VI) complexes, MoO2L1-MoO2L7, have been synthesized by the reaction of MoO2(acac)2 with tetradentate Schiff bases derived from various substituted salicylaldehydes and 1S,2S-(+)-2-amino-1-phenyl-1,3-propanediol. All complexes have been characterized by elemental analysis, circular dichroism, electronic and IR spectral studies. 1H NMR and also two-dimensional (COSY, NOESY and gHSQC) NMR measurements...