Adsorption of tetradentate ligands of the type N,N'-bis (2-pyridinecarboxamide)-1,2-R (bpR with R = ethane, cyclohexane, benzene) and -1,3-R (bpR with R = propane) on (MnNaY)-Na-II zeolites yields [Mn(bpR)]-NaY catalysts for the selective epoxidation of olefins with hydrogen peroxide (H2O2) and tertbutyl hydroperoxide (tBHP). The (de)protonation and coordination geometry of the occluded complexes is probed by FT-IR, EPR and DRS spectroscopy. Their catalytic activity in cyclohexene epoxidation differs strongly with the nature of the bridging ligand. Heterogenisation by zeolitic occlusion leads to a decrease in allylic oxidation of olefins with H2O2 and tBHP. Implications of ligand amide N-H protonation on hydrogen bonding with peroxides, catalyst activity and stability towards oxidation are shown. Solvent peroxide interactions and effects of residual zeolitic Bronsted acidity on epoxide selectivity are considerable.