Construction of Iodoargentates with Diverse Architectures: Template Syntheses, Structures, and Photocatalytic Properties

Guided by diverse solvated metal cations, three novel iodoargentates with various architectures ranging from a one-dimensional chain to a two-dimensional layered-network have been successfully constructed and further characterized. Compounds {[Cr(DMSO)6][Ag6I9]·H2O} (1) and [Ni(DMSO)6][Ag5I7] (2) present the anionic Ag–I infinite chain structure wherein different secondary building units could be readily observed. Separated by [V(DMSO)5(H2O)]2+ cations, the [Ag6I8]2– layers are generated in compound 3 and further stacked into a three-dimensional supramolecular architecture by virtue of the electrostatic interactions as well as intermolecular forces. Structural analysis suggests that inorganic molecular templates together with diverse connection modes of AgI4 motifs play a significant role in the formation of the final products. Notably, the small band gap of solids 2 and 3 affords a great opportunity for photocatalytic degradation of organic dyes under UV light irradiation. Compound 2 possesses photodegra...