A New Luminescent Zn(II) Coordination Polymer Based on Mixed Ligands of Pyrazine-2,3-Dicarboxylic Acid and 3-Amino-1,2,4-Triazole

Abstract

A new luminescent coordination polymer, namely [Zn(pzdc)(AmTAZ)] n (1 H 2 pzdc D pyrazine-2,3-dicarboxylic acid, AmTAZ D 3-amino-1,2,4-triazole), has been successfully synthesized under hydrothermal conditions. Single-crystal X-ray analysis reveals that 1 is a two-dimensional (2D) layered structure with the terminal AmTAZ ligands dangling up and down the layer. Finally, these 2D layers are further extended into a three-dimensional (3D) supramolecular framework through intermolecular hydrogen bonds.

Bioinspired Engineering of Two Different Types of Sacrificial Bonds into Chemically Cross-Linked cis-1,4-Polyisoprene toward a High-Performance Elastomer

“…Triazole units can function as ligands for metal–ligand coordination when they interact with metal salts. ,, In the present work, metal–ligand coordination was introduced by adding different contents of ZnCl 2 to the hydrogen-incorporated systems. To verify the coordination formation between Zn ions and triazole moieties of the chains, FTIR spectra of the samples with increasing zinc content are compared (Figure a).…”

“…Specifically, we incorporated weaker hydrogen bonds and stronger metal-based units into a chemically cross-linked cis -1,4-polyisoprene (IR) network. For the first time, metal–triazole coordination, which has been widely used to prepare functional materials for luminescence, magnetism, catalysis, gas storage, and separation, − was introduced into elastomers as dynamic bonds. The cooperative energy-dissipation effect of the sacrificial hydrogen bonds and metal-based units produced a combination of high stretchability and fracture energy.…”

Synthesis, characterization, DNA binding, cytotoxicity and molecular docking properties of three novel butterfly‐like complexes with nitrogen‐containing heterocyclic ligands

“…Pyrazine is an important heterocyclic structural motif, which is known to exhibit an extensive range of biological activities, such as analgesic, anti‐inflammatory, antifungal, antioxidant and anticancer activities [ 14–17 ] . Pyrazine‐based complexes are known for their potent anticancer activity, including cytotoxicity against different cancer cells, hindering of DNA replication and induction of apoptosis [ 18–20 ] . In addition, triazole complexes have broad antibiotic spectrum, low liver toxicity and good pharmacokinetic properties such as good oral absorption, high bioavailability and wide tissue distribution [ 21–24 ] .…”