Three 3D coordination polymers based on [1,1′:4′,1′′-terphenyl]-2′,4,4′′,5′-tetracarboxylate demonstrating magnetic properties and selective sensing of Al³⁺/Fe³⁺over mixed ions

Abstract

Three 3D coordination polymers have been synthesized by using the 1,1′:4′,1′′-terphenyl]-2′,4,4′′,5′-tetracarboxylate acid and Cd(ii),Co(ii) and Mn(ii), the Cd(ii) complex shows selective sensing Al3+/Fe3+ over the mixed metal ions.

Two d10 metal–organic frameworks based on a novel semi‐rigid aromatic biscarboxylate ligand: Syntheses, structures and luminescent properties

“…To date, a number of metal coordination polymers with d 10 metal ions have been designed and investigated, which display charming structures and interesting physical properties. [ 12,13,105–114 ] Thus, the development and investigation of novel MOFs with d 10 metal ions that exhibit interesting fluorescent behaviors is still a big challenge.…”

Syntheses, structures, and properties of four coordination polymers based on 2,7‐di(pyridin‐4‐yl)‐9H‐fluoren‐9‐one

“…It has four carboxyl groups that may be completely or partially deprotonated, enriching the monodentate and multidentate coordination modes. The H 4 L ligand has been widely used in synthesizing CPs with prominent optical and magnetic properties . In this article, four CPs based on the 2,7‐dpfo ligand were successfully synthesized under different reaction conditions, namely [Cd(2,7‐dpfo) 2 (NO 3 ) 2 (CH 3 OH)] n (1) , [Zn(2,7‐dpfo)(NO 3 )(CH 3 COO)] n (2) , [Co(2,7‐dpfo) 2 (H 2 L)] n (3) , and [Ni(2,7‐dpfo) 2 (H 2 L)] n (4) .…”

Ratiometric Luminescent Sensor of Picric Acid Based on the Dual-Emission Mixed-Lanthanide Coordination Polymer

“…In this work, we selected a centrosymmetric tetracarboxylic acid ligand [1,1′:4′,1″-terphenyl]-2′,4,4″,5′-tetracarboxylic acid (H 4 L, Figure a), which exhibits fluorescence and phosphorescence dual emissions at 77 K and has been used for the construction of coordination compounds. − On the basis of this ligand, we have prepared a series of isostructural CPs ( LnL , Ln = Eu, Gd, Tb, Dy, Ho, and Er) and mixed-Ln CPs ( Eu x Tb 1– x L ( x = 0.001, 0.005, 0.01, 0.02, 0.05, and 0.1), Eu x Gd 1– x L ( x = 0.001, 0.005, and 0.02), Tb x Gd 1– x L ( x = 0.01, 0.02, and 0.05), and Eu x Tb 0.02– x Gd 0.98 L ( x = 0.0003, 0.0008, and 0.001)), in which x is the doping molar ratio. Then, we determined the structures, luminescence properties, and luminescence responses to nitro compounds, and the research results proved that TbL and Tb 0.01 Gd 0.99 L are excellent ratiometric luminescence sensors for PA with high sensitivity and selectivity.…”