Toward Quartz and Cristobalite: Spontaneous Resolution, Structures, and Characterization of Chiral Silica−Mimetic Silver(I)−Organic Materials

An α-quartz−mimetic chiral coordination network of [Ag(L1)(CF3SO3)]n (L1 = 5,5‘-bipyrimidine), after treatment with PF6- anions,
undergoes a solution-state structural transformation toward [Ag(L1)(PF6)]n with a cristobalite−mimetic chiral structures. This
structural transformation is accompanied by substantial enhancement in the fluorescent intensity and in the second-harmonic-generation response. The results also demonstrate an effective
design strategy based on the spontaneous resolution route for
the preparation of chiral architectures.