X‐ray Structure Analysis of N‐Containing Nucleophilic Compounds by the Crystalline Sponge Method

Crystalline sponges (CS) used under a set of standard conditions have often failed to give viable N‐containing nucleophilic compounds. Despite the high affinity of these nucleophiles to the binding sites of the CS, N‐containing compounds considerably harm the coordination framework of the CS during the guest‐soaking step. Herein, it is disclosed that these compounds are efficiently absorbed into the CS, without harming the host, under mild conditions (