Synthesis, Characterization and Luminescence Behavior of a Cd‐terephthalate Coordination Polymer

Abstract

A novel coordination polymer {[CdBr(TA)](C2H7N)}n was synthesized based on CdBr2 and terephthalic acid (TA) via solvothermal method, which belongs to orthorhombic system with Fddd space group, and it displays three‐dimension and 3‐fold interspersed. The compound was characterized by powder X‐ray diffraction, elemental analysis, thermal stability, fluorescence and ultraviolet absorption characterization to prove the phase purity and properties. Fluorescence test was proved that the compound has a strong fluorescence emission at 460 nm. When detecting metal ions, Cu2+ and Fe3+ ions have a complete quenching effect on their fluorescence, and Co2+ ions could change its fluorescence emission wavelength.

High-Sensitivity Organic–Inorganic Hybrid Materials with Reversible Thermochromic Property and Dielectric Switching

“…The experimental data were calculated using the Tauc equation, and the optical band gap of CP-1 is 2.72 eV. The solid-state UV–vis diffuse reflectance spectroscopy experiments show that the ultraviolet absorption spectrum is red-shifted (Figure a), , the corresponding optical band gap is also reduced (Figure b,c) to 2.33 eV, and the semiconductor properties are more prominent. The changing trend of the optical band gap can be seen from Figure b, E g (PbI RTP ) > E g (PbI HTP ).…”