Coordination-driven self-assembly of palladium(II)-based metallacalixarenes as anion receptors using flexible pyridine-bridged diimidazole ligands

Thermally-induced atropisomerism promotes metal-organic cage construction

“…Metal–organic self-assemblies, such as metal–organic cages, are frequently built using the pyridinyl group as a powerful ligand 6 , 41 , 64 – 66 . It was believed that using macrocycles with pyridinyl groups as their building blocks was an efficient way to create specific topological structures with large cavities.…”

Advancing an AIE dipyridyl derivative-based self-assembly system as a robust probe with enhanced fluorescence by metal ions for sensing multiple solvents

“…32–35 To date, many attempts have been made to develop a variety of transition metal( ii ) complexes by tuning metal ions and ligands; metal–ligand coordination bonds can be designed with interesting structures and desirable properties for various applications. 36–42 Flexible nitrogen donor ligands have been studied extensively over the last years 43–45 and have been applied in the fields of catalysis, 46 medicinal chemistry, 47 and materials science. 48…”

“…[32][33][34][35] To date, many attempts have been made to develop a variety of transition metal(II) complexes by tuning metal ions and ligands; metal-ligand coordination bonds can be designed with interesting structures and desirable properties for various applications. [36][37][38][39][40][41][42] Flexible nitrogen donor ligands have been studied extensively over the last years [43][44][45] and have been applied in the fields of catalysis, 46 medicinal chemistry, 47 and materials science. 48 Considering the perfect coordination ability of the pyridine group, a series of bipyridine derivatives and a novel metal bipyridine complex sensor for the detection of polar solvents have been investigated in this work.…”

Tuning the Size and Geometry of Pd(II)-Based Metallacalixarenes by Varying the N-Containing Ligands: Synthesis, Structure, and Sensing Properties

“…Previous studies have examined the synthesis and dynamics of various designed Pd­(II)-based supramolecular architectures as the structural analogues of metallacalixarenes with imidazoles as neutral and anionic ligands. − However, the controllable self-assembly of structural analogues of metallacalixarenes using varied cis-protecting Pd­(II) units and/or counteranions has attracted limited attention. , In this study, two types of N-containing compounds with thiophene and imidazolate groups as organic ligands (Figure ) were designed and four Pd­(II) components with or without a π-cloud in the cis-protecting units as well as nitrate/hexafluorophosphate as counteranions were used. The results indicate that the differences in ligands, Pd­(II) components, and counteranions influenced the construction and configuration of supramolecular structures via intermolecular interactions.…”