Luminescent Two-Dimensional Coordination Polymer for Selective and Recyclable Sensing of Nitroaromatic Compounds with High Sensitivity in Water

Abstract

A stable two-dimensional (2D) coordination Cd­(II) polymer [Cd­(ppvppa)­(1,4-NDC)] n (1) (ppvppa = N-(pyridin-2-yl)-N-(4-(2-(pyridin-4-yl)­vinyl)­phenyl)­pyridin-2-amine; 1,4-H2NDC = 1,4-naphthalenedicarboxylic acid) was prepared by the solvothermal reactions of Cd­(NO3)2·4H2O with ppvppa and 1,4-H2NDC in H2O and MeCN at 150 °C. Compound 1 was characterized by elemental analysis, IR, powder X-ray diffraction (PXRD), and single crystal X-ray diffraction and thermogravimetric analysis (TGA). Compound 1 consists of dimeric [Cd2(μ-ppvppa)2] fragments linked by 1,4-NDC bridges to generate a 2D honeycomb network. Complex 1 strongly emits blue light in the solid state when excited at 419 nm at ambient temperature. This emission is selectively quenched by nitro aromatic compounds in water with good sensitivity. Compound 1 also displays recyclable detection of nitro aromatic compounds.

Nickel(II)-Based Two-Dimensional Coordination Polymer Displaying Superior Capabilities for Selective Sensing of Cr(VI) Ions in Water

“…Recently, functional coordination polymers (CPs) have been extensively investigated due to their structure diversities and numerous applications in energy storage/conversion, − organic catalysis, − sensors, − optics, pollution treatment, − electronics , and so on. Luminescent CPs have received particular attention because they can be employed for selective and sensitive probes for detecting environmental pollutants.…”

Two Coordination Polymers and Their Silver(I)‐Doped Species: Synthesis, Characterization, and High Catalytic Activity for the Photodegradation of Various Organic Pollutants in Water

“…Materials and Methods: The ppvppa ligand was prepared according to the published procedure . All chemicals and reagents were obtained from commercial sources and used as received.…”

Framework Materials Based on Naphthalenediimide Derivatives Supported by Aromatic Carboxylic Acids for Application as Multifunctional Fluorescence Sensors

“…As we all know, nitro compounds are a class of environmental pollutants and potential organic explosives, so it is critical to develop efficient methods for their detection. According to reports in the literature, [58][59][60][61] many researchers have devoted themselves to the study of the detection of nitro or volatile organic compounds. So inspired by this, we chose four nitro compounds p-nitroaniline (PNA), p-nitrobenzaldehyde (PNB), pnitrotoluene (PNT), and p-nitrophenol (PNP), each containing different functional groups, to be detected using complex 4 (Figure 14).…”