Retraction for ‘A series of novel types of immobilized chiral salen Mn(iii) on different organic polymer–inorganic hybrid crystalline zinc phosphonate–phosphate act as catalysts for asymmetric epoxidation of unfunctionalized olefins’ by Jing Huang et al., Catal. Sci. Technol., 2012, 2, 1040–1050, DOI: 10.1039/C2CY00502F.