Ligand Structure Induced Diversification from Dinuclear to 1D Chain Compounds: Syntheses, Structures and Fluorescence Properties

Abstract

Using the solvothermal method, we present the comparative preparation of [Zn 2 (Hfhba) 4 (phen) 2 ] (1), [Zn 2 (Hfhba) 4 (2,2 0 -bipy) 2 ] (2) and [Zn 2 (Hfhba) 4 (4,4 0 -bipy) 2 ] n (3), where H 2 fhba is 5-fluoro-2-hydroxy-benzoic acid, phen is 1,10-Phenanthroline, 2,2 0 -bipy is 2,2 0 -Bipyridine, 4,4 0 -bipy is 4,4 0 -Bipyridine. Complexes 1-3 were characterized by elemental analysis, IR, UV-Vis spectroscopy, and X-ray single-crystal diffraction. Complexes 1 and 2 are two new dinuclear complexes and 3 is a 1-D polymer. Luminescent properties of 1-3 have also been studied.

Efficient removal of As(V) from simulated arsenic‐contaminated wastewater via a novel metal–organic framework material: Synthesis, structure, and response surface methodology

“…The dinuclear unit is formed through two carboxylate groups and one hydroxyl bridge while the Zn···Zn distance is 2.971 Å, which is shorter than the Zn···Zn bond length in the dimeric zinc(II)–carboxylato complexes, [Zn 2 (bpy) 2 (MeCO 2 ) 3 ]C1O 4 (bpy = 2,2′‐bipyridine, 3.275 Å) and [Zn 2 (Hfhba) 4 (2,2′‐bipy) 2 ] (H 2 fhba = 5‐fluoro‐2‐hydroxybenzoic acid, 4.341 Å) The dinuclear unit further constructed a 2D network through four carboxylate groups of four different ptmda ligand bridges, which formed a 3D network through C–H···π hydrogen bonds (C21···π[C40‐C41‐C42‐C43‐C45‐C46] ii , 3.757 Å, symmetry code: (ii) 1‐ x , 1‐ y , 1‐ z. ).…”

“…Name of factors [Zn 2 (bpy) 2 (MeCO 2 ) 3 ]C1O 4 (bpy = 2,2 0 -bipyridine, 3.275 Å) [34] and [Zn 2 (Hfhba) 4 (2,2 0 -bipy) 2 ] (H 2 fhba = 5-fluoro-2-hydroxybenzoic acid, 4.341 Å) [35] The dinuclear unit further constructed a 2D network through four carboxylate groups of four different ptmda ligand bridges, which formed a 3D network through C-HÁÁÁπ hydrogen bonds (C21ÁÁÁπ[C40-C41-C42-C43-C45-C46] ii , 3.757 Å, symmetry code: (ii) 1-x, 1-y, 1-z. The topological structure diagram and interpenetration diagram of GUT-3 show that the interpenetration between molecules occurs through hydrogen bond interaction and π-π interaction.…”

Tetranuclear nickel(II) clusters: syntheses, crystal structures, magnetic properties and Hirshfeld surface analysis

“…The C-O stretching vibrations of free Haatp at 1248 cm -1 exhibits red shifts to 1223 cm -1 and 1235 cm -1 for 1 and 2, respectively, suggesting its participation in chelation [49,50]. The bands at 1437 cm -1 and 1437 cm -1 for 1 and 2 are assigned to the ν sym (COO) stretching frequency of CH 3 COO -and HCOO -, respectively [15,48].…”

“…Synthesis of polynuclear complexes have undergone tremendous development because of their fascinating structures and applications in optical [1,2], electrochemical [3,4], magnetic [5][6][7][8][9][10][11], luminescence [12][13][14][15] and catalytic materials [16,17]. An effective and facile approach for synthesis of such complexes is appropriate choice of organic ligands as bridge or terminal groups, with metal ions or metal clusters as nodes.…”

Penta‐Nuclear Fe(III) Cluster: Synthesis, Structure, Magnetic Properties and Hirshfeld Surface Analysis

“…In the last decades, multinuclear complexes base on Schiff bases have acquired great development because of their full of fascinating structures and applications in optical, electrochemical, magnetic, luminescence, biomedical, electrochemiluminescence (ECL) and catalytic materials . A valid and gentle method for synthesis of such complexes is an appropriate choice of organic ligands as bridge or terminal groups, with metal ions or metal clusters as nodes.…”