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

Abstract

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 photodegradation activity and recyclability toward methyl violet, while an excellent catalytic behavior for methylene blue has been investigated for solid 3. In addition, the possible photocatalytic mechanisms for compounds 2 and 3 have been further studied.

Fabrication of a Stable Europium-Based Luminescent Sensor for Fast Detection of Urinary 1-Hydroxypyrene Constructed from a Tetracarboxylate Ligand

“…In fact, considerable efforts have been dedicated to seeking simple and effective methods on detecting urinary 1-HP for the past few years. Benefitting from the fascinating fluorescent capabilities such as characteristic and strong emission peaks, long lifetimes, high quantum yields, and large Stokes shift, − metal–organic frameworks constructed from lanthanide (Ln-MOFs), especially Eu-centered and Tb-centered MOFs featuring the typical red or green luminescence of Eu­(III) and Tb­(III), have been successfully explored and widely applied in chemical sensors, covering metal ions, − anions, − organic molecules, − antibiotics, − temperature variation, and luminescent devices. − Yan’s group reported a luminescent Eu-doped Ga-MOF applied as a fast-responsive, highly sensitive, and selective sensor for detecting 1-HP . Liu and coworkers developed an Eu 3+ -incorporated Zn-MOF considered as a potential ratiometric luminescent probe for 1-HP .…”

Multifunctional Viologen-Derived Supramolecular Network with Photo/Vapochromic and Proton Conduction Properties

“…Compound 1 was prepared using the hydrothermal synthesis method, in which the combination of pressure and temperature facilitate the formation of crystal materials [ 22 , 23 , 24 ]. This compound crystallizes in the monoclinic crystal system and P 2 1 /c space group ( Table 1 ).…”

Tuning the Electronic Structure of CoP Embedded in N-Doped Porous Carbon Nanocubes Via Ru Doping for Efficient Hydrogen Evolution

“…The demand for energy and environmental protection makes clean and sustainable energy an inevitable choice for future energy development. , Electrochemical water splitting, containing the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER), is a promising method to create a clean hydrogen energy source. Thus far, Pt-, Ir-, and Ru-based catalysts have been considered as the most remarkable catalysts for HER and OER .…”