pH-Dependent Ag(i) coordination architectures constructed from 4-cyanopyridine and phthalic acid: from discrete structure to 2D sheet

Self assembly of sandwich-layered 2D silver(I) coordination polymers stabilized by argentophilic interactions: Synthesis, crystal structures and ab initio intramolecular energetics

“…Phthalic acid groups (-COOH) are fully deprotonated. The diverse binding modes for the silver-1,2-benzenedicarboxylate complexes have been previously reported (Scheme 2) [44][45][46][47][48][49][50]. In the centre of 1, four-membered bimetallic ring (Ag 2 O 2 ) is composed of two silver ions and two carboxylate oxygen atoms with the angle values of 90.66 (6)°and 89.35 (6)°of O-Ag-O and Ag-O-Ag (Fig.…”

Synthesis, Crystal Structures and Luminescent Properties of pH-Dependent Zn (II) Coordination Polymers

“…As we know, Zn atom is difficult to oxidize or reduce due to its d 10 configuration. Thus, the fluorescent emissions of compounds 1 and 2 are neither metal-to-ligand nor ligandto-metal charge transfer, they may be assigned to intraligand fluorescent emission [30,31]. The different emission positions and intensities of compounds 1 and 2 may be due to the significant difference of their structures because the enhancement of luminescent is associated with the coordination of ligands to metal center [32,33].…”

Lanthanide coordination compounds with 2,2′-bipyridine-6,6′-dicarboxylate: Synthesis, crystal structure, luminescence and magnetic property

“…Their structures change from zero dimension to two dimension with chelating and bridging coordination modes. But there have been few systematic studies on the influence of the pH values of the reaction system on structures, and by tuning the pH values, the structures of the final compounds could be regulated [28][29][30][31][32][33][34][35][36]. A number of reasons that the pH values regulated the structures have reported, such as influencing the deprotonated extend of ligands [34,37], facilitating the formation of l-OH group [29], generating different conformations and coordination modes [38].…”