Structural Modulation and Properties of Silver(I) Coordination Frameworks with Benzenedicarboxyl Tectons and trans-1-(2-Pyridyl)-2-(4-pyridyl)ethylene Spacer

Abstract

A series of silver(I) coordination polymers have been synthesized by the combination of an extended 2,4 0 -bipyridyl linker trans-1-(2-pyridyl)-2-(4-pyridyl)ethylene (bpe) and different benzenedicarboxyl tectons, including isophthalic acid (H 2 ip), 5-sulfoisophthalic acid (H 3 sip), terephthalic acid (H 2 tp), 2-aminoterephthalic acid (H 2 ata), and 2-bromoterephthalic acid (H 2 bta). Single-crystal X-ray diffraction indicates that the structural patterns of these polymeric complexes diversify from two-dimensional (2-D) (3,4,5)-connected (for 2) or 6 3 (for 3 and 4) layers to three-dimensional (3-D) (10,3)-b (for 1) or 8-nodal self-penetrating (for 5) networks. Interestingly, the Ag I centers can show various coordination spheres such as linear, trigonal, tetrahedral, and square-pyramidal geometries. The results clearly reveal that the dicarboxyl building blocks with different dispositions of the carboxyl sites and uncoordinated substituent groups, are the crucial factors for structural assemblies of such extended frameworks. Solid-state properties for these crystalline materials have also been investigated, which display modest thermal stability and strong fluorescent emission at room temperature.

Silver(I)–Organic Frameworks Showing Remarkable Thermo-, Solvato- And Vapochromic Phosphorescence As Well As Reversible Solvent-Driven 3D-to-0D Transformations

“…A riboflavin-functionalized cyanobenzoate Ag-LMOF was used for the emission sensing of melamine and acetoguanamine . A plethora of Ag-LMOFs exhibiting deep-blue to green fluorescence were engineered based on arene-derived di-, − tri-, − and tetracarboxylates ,− as well as N , N′ -coligands. More recently, a MOF-OLED device was fabricated utilizing a brightly fluorescent Ag­(I) 1,4-benzenedicarboxylate framework .…”

“…Moreover, these issues together with inherent lability of Ag + ion often lead to characterization or crystallization problems. Commonly, Ag-MOFs are accessed using aromatic polycarboxylates, − ethynide- − or azine-based ligands (4,4′-bipy, triazine, etc. ), ,,, and polyamines. , For the synthesis of porous Ag­(I) MOFs, polydentate N -ligands with structurally rigid aromatic spacers are usually required. − Besides, bisthioethers of RS–(X)–SR kind were employed to construct Ag­(I)-MOFs. , To our surprise, phosphines are almost neglected in this area, although they are now considered to be the most promising ligands for the design of Ag­(I) compounds, including those featuring bright thermally activated delayed fluorescence (TADF) − or phosphorescence. − It should be stressed in this regard that Ag-LMOFs typically emit intraligand fluorescence, while phosphorescence is extremely rare for these compounds. ,,, Meanwhile, phosphorescent LMOFs have unique advantages in sensing applications because of their longer decay times compared to those of promptly fluorescing LMOFs.…”

“…Commonly, Ag-MOFs are accessed using aromatic polycarboxylates, 8−27 ethynide-28−32 or azine-based ligands (4,4′-bipy, triazine, etc. ), 12,13,23,26 and polyamines. 41,42 For the synthesis of porous Ag(I) MOFs, polydentate N-ligands with structurally rigid aromatic spacers are usually required.…”

Structural modulation and properties of silver(I) coordination polymers from 2,6-naphthalenedicarboxylic acid and flexible N-donor linkers

“…However, since many factors, such as the selection of auxiliary N-donor organic ligands, coordination preferences of the metal nodes, temperature, solvent, reactant concentrations, and non-covalent supramolecular interactions [5][6][7], can influence the topological architectures and properties of these crystalline materials, it has become a long-term challenge for chemists to rationally synthesize and control the structures and compositions of target products in crystal engineering or supramolecular chemistry.…”

Synthesis, crystal structures, and photoluminescence of two silver(I) coordination polymers based on 2-sulfoterephthalic acid and N-donor ligands

“…Silver(I) atoms can accommodate a wide variety of stereochemistries, with coordination numbers of two to six and versatile coordination geometries, including linear, T-shaped, square-planar, tetrahedral, square-pyramidal, trigonal-bipyramidal, and octahedral [10][11][12][13]. Furthermore, Ag(I) with a d 10 closedshell electronic configuration tends to form argentophilic interactions, which have an important influence on the formation of polymetallic clusters [14][15][16]. In particular, Ag(I) complexes with carboxylate ligands have been widely investigated for their intriguing structural topologies and potential applications [17][18][19][20].…”