The syntheses, structures, and properties of metal-organic frameworks based on mixed multi-N donor and carboxylate ligands

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

“…Utilizing a boron benzimidazolate tetrahedral anionic ligand, [B­(bim) 4 ] − (bim = benzimidazolyl), a 2D fes net MOF Li­[B­(bim) 4 ] bearing 3-connected Li sites and dangling bim groups has been revealed by Feng and co-workers . A series of complexes, [Zn­(tib)­(BPDS)] (tib = 1,3,5-tris­(1-imidazolyl) benzene; H 2 BPDS = 4,4′-biphenyldisulfonic acid), [M­(μ 3 -cppa)­(H 2 O) 2 ] (M = Ni, Co) (Figure a) (H 2 cppa = 4-(3-carboxyphenyl) picolinic acid), [Zn 2 (OH)­(TZI)­(2,2′-bpy)]·H 2 O (Figure b) (H 3 TZI = 5-(4-(tetrazol-5-yl)­phenyl)­isophthalic acid; 2,2′-bpy = 2,2′-bipyridine), [Ni­(μ 3 -cpna)­(2,2′-bpy)­(H 2 O)] 2 ·H 2 O, [Ni­(μ 3 -cpna)­(phen)­(H 2 O)]·H 2 O, [Pb­(μ 3 -cpna)­(phen)]·H 2 O (H 2 cpna = 5-(4-carboxyphenoxy) nicotinic acid; phen = 1,10-phenanthroline), and [UO 2 ( c -chdc) 2 Ni­(cyclam)­(H 2 O)] ( c -chdc = cis -1,2-cyclohexane dicarboxylic acid) also exhibited same (3,3)-connected fes topological net with chair-shaped octagonal ring instead of a regular shape (Figure c). ,,− In addition, several interesting 2D MOFs with fes topology have been reported in the literature. ,,− …”

Design and synthesis of a turn-off fluorescent sensor based on a multifunctional Zn(ii) coordination polymer for the detection of Fe3+, Hg2+ and 4-nitrophenol

“…2, compound 1 exhibits intensive emission with a fluorescence peak at 390 nm (λ ex = 338 nm), whereas free ligands show emission with fluorescence peaks at 424 nm for Na 2 L (λ ex = 345 nm) and 630 nm for dpa (λ ex = 410 nm). Compared with the free ligands, an obvious shift of compound 1 is observed, which is attributed to not only the coordination of metal centers and ligands [33][34][35] but also the emission of ligand-to-metal charge transfer (LMCT). 36,37 The lifetimes are τ 1 = 0.93 ± 0.01 μs (50.9%) and τ 2 = 8.66 ± 0.04 μs (49.1%) for 1.…”

The Structure and Property of Two Different Metal-Organic Frameworks Based on N/O-Donor Mixed Ligands

“…All reagents were obtained from commercial sources, except for AZN ligand, which was obtained according to the literature [22]. Elemental analyses were carried out on an Elementar Vario EL III elemental analyzer.…”