Chirality Induction in Porous MOF The chiral induction reagent (e.g., D-, L-camphoric acid) exhibits two distinct roles: (1) enable and catalyze growth of chiral crystals, and (2) control bulk chirality of Mn3(HCOO)4(adc) crystals (H2adc = adamantane-1,3-dicarboxylic acid. Time-dependent experiments show the initial crystallization of an achiral phase Mn(adc), which persists in the absence of chiral induction agent, but is slowly converted into enantioenriched Mn3(HCOO)4(adc) in the presence of chiral induction agent such as D-camphoric acid, operating in synergy with in situ generated formate.