元の結晶構造を記憶した固相での分子の再配列と反応

抄録

Molecular rearrangement and reactions occur between crystals spontaneously or by mechanical methods by way of molecular diffusion, cleavage and creation of hydrogen bonds or formation of co-ordination bonds, while retaining the memory of original crystal structures. Therefore, crystals thus formed in the solid state are often different from those obtained from conventional solution crystallization. Photocyclization of 2-(o-substuted-arylthio)-3-methyl-2-cyclohexene-1-ones within a crystal is influenced by external heavy-atom effect, and affords unique reaction products. By placing reactant molecules in a different environment by way of co-crystal formation, we could switch reaction pathways and hence product distribution in the solid state.