nodentate Se_cat and Te_cat [ 17 ], both substituted with electron-withdrawing pentafluorophenyl groups; and finally, (V) three pnictogen-bonding catalysts [ 17 ] that show a variation in pnictogen atoms, going from phosphorus (P_cat) over arsenic (As_cat) to antimony (Sb_cat) in order to establish a possible trend in strength when moving down in the periodic table.
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Unravelling the Mechanism and Governing Factors in Lewis Acid and Non-Covalent Diels-Alder Catalysis: Different Perspectives.
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