The chiral 1D-coordination polymers (CP) {[Ln(2)(MnLCI)(2)(NO3)(2)(dmf)(6)(H2O)(2)]center dot xH(2)O}, [Ln = Pr (1), Nd (2), Sm (3), and Gd (4)] were synthesized by the reaction of N,N'-bis(4-carboxysalicylidene)cyclohexanedianiine (H4L) with [MnCl2 center dot 4(H2O)] and [Ln(NO3)(3)center dot x(H2O)] in. the presence of dmf/pyridine at 90 degrees C. The polymers consist of manganese-salen-based moieties having carboxylate linkers connected to rare earth atoms in a 1D-chain structure. The polymers.,are very easily accessible. A one-step synthesis for the ligand and a second step for the preparation of the 1D coordination polymers starting from commercially available material are needed. The solid state structures of 1-4 were established by single-crystal X-ray diffraction. Compounds 1-4 were investigated as heterogeneous catalysts for the sulfoxidation reaction of various alkyl and aryl sulfides. The influence of various solvents and oxidizing agents on the catalytic-reaction was examined. It was found that the catalysts were active for more than one reaction cycle without significant loss of activity. For phenylsulfide with 1 mol. % of the catalyst 4, a maximum conversion 100% and a chenloselectivity 88% were observed: