A comparison of solution and solid state coordination environments for calcium(II), zirconium(IV), cadmium(II) and mercury(II) complexes with dipicolinic acid and methylimidazole derivatives

Ghadermazi, Mohammad; Derikvand, Zohreh; Mahmouidiazar, Zahra; Shahnejat, Elham; Rudbari, Hadi Amiri; Brunò, Giuseppe; Shokrollahi, Ardeshir; Nasiri, Sara; Naderi, Parisa Mehdizadeh

doi:10.1080/00958972.2015.1079627

Cited by 12 publications

(2 citation statements)

References 31 publications

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“…In the crystal structure, a complex 3D network of H-bonds is found (Table S8). Several metal complexes with the ligand 2,6-pyridinedicarboxylat have been reported, which exhibit the same coordination environments as observed in 1 . − …”

Section: Resultsmentioning

confidence: 73%

Systematic Study on Zirconium Chelidamates: From a Molecular Complex to a M-HOF and a MOF

Poschmann,

Alan,

Ito

et al. 2023

Inorg. Chem.

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We report the synthesis and in-depth characterization of three zirconium chelidamates, a molecular complex (H8C2N)2[Zr(HL)3] (1), a porous metal-containing hydrogen-bonded organic framework (M-HOF) [Zr(H2O)2(HL)2]·xH2O (2), and a metal–organic framework (MOF) (H8C2N)2–2n [Zr(H n L)2]·x solvent (0 ≤ n ≤ 1) (3) using chelidamic acid (H3L, H5C7NO5, 4-hydroxypyridine-2,6-dicarboxylic acid) as the ligand (H8C2N+ = dimethylammonium). High-throughput investigations of the system Zr4+/H3L/HCl/DMF/H2O were carried out, which resulted in highly crystalline compounds. The crystal structures of 1 and 2 were determined by single-crystal X-ray diffraction. Single-crystal three-dimensional (3D) electron diffraction and Rietveld refinements of powder X-ray diffraction (PXRD) data had to be used to elucidate the crystal structure of 3 since only very small single crystals of about 500 nm in diameter could be obtained. In all structures, chelidamate ions act as anionic palindromic pincer ligands, and in 3, a coordinative bond is additionally formed by the aryloxy group. While dense packing of the molecular complexes is found in 1, hydrogen bonding of the molecular complexes in 2 leads to a porous network that shows flexibility depending on the water content. The three-dimensional framework structure of the Zr-MOF 3 contains a mononuclear inorganic building unit (IBU), which is very uncommon in Zr-MOF chemistry. The three compounds are stable in several organic solvents, and thermal decomposition starts above 280 °C. While the hydrogen-bonded framework 2 is only porous toward water with a water uptake of almost 3.75 mol mol–1 at p/p 0 = 0.9, 3 is porous against N2, CO2, methanol, ethanol, and water with a specific Brunauer–Emmett–Teller (BET) surface area of a S,BET = 410 m2 g–1 derived from the N2 adsorption isotherm. Stability upon water adsorption covering 10 cycles between 0.5% < p/p 0 < 90% for 3 is also demonstrated.

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Section: Resultsmentioning

confidence: 73%

Systematic Study on Zirconium Chelidamates: From a Molecular Complex to a M-HOF and a MOF

Poschmann,

Alan,

Ito

et al. 2023

Inorg. Chem.

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“…In particular, the presence of electron donating heteroatom (-N-) at the center of two COO – groups enables DPA to act as a tridentate ligand, enhancing its binding efficiency with heavy metal ions. Thus, DPA is usually used as a strong chelator for Zr 4+ ions , accompanied by the formation of a Zr 4+ -DPA complex of a high stability constant. The observed reversal of the Zr 4+ -induced AIEE effect and disassembly of the Zr 4+ -CoA@GNCs aggregates could indicate that the binding affinity of DPA as a tridentate ligand for Zr 4+ could be higher than that of the ligands of the CoA@GNCs.…”

Section: Resultsmentioning

confidence: 99%

Zirconium-Directed Supramolecular Self-Assembly of Coenzyme A@GNCs with Enhanced Phosphorescence for Developing Ultrasensitive Tracer Probe of Dipicolinic Acid, a Biomarker of Bacterial Spores

et al. 2023

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Luminescent gold nanoclusters (GNCs) are a class of attractive quantum-sized nanomaterials bridging the gap between organogold complexes and gold nanocrystals. They typically have a core−shell structure consisting of a Au(I)organoligand shell-encapsulated few-atom Au(0) core. Their luminescent properties are greatly affected by their Au(I)organoligand shell, which also supports the aggregation-induced emission (AIE) effect. However, so far, the luminescent Au nanoclusters encapsulated with the organoligands containing phosphoryl moiety have rarely been reported, not to mention their AIE. In this study, coenzyme A (CoA), an adenosine diphosphate (ADP) analogue that is composed of a bulky 5phosphoribonucleotide adenosine moiety connected to a long branch of vitamin B5 (pantetheine) via a diphosphate ester linkage and ubiquitous in all living organisms, has been used to synthesize phosphorescent GNCs for the first time. Interestingly, the synthesized phosphorescent CoA@GNCs could be further induced to generate AIE via the PO 3 2− and Zr 4+ interactions, and the observed AIE was found to be highly specific to Zr 4+ ions. In addition, the enhanced phosphorescent emission could be quickly turned down by dipicolinic acid (DPA), a universal and specific component and also a biomarker of bacterial spores. Therefore, a Zr 4+ -CoA@GNCs-based DPA biosensor for quick, facile, and highly sensitive detection of possible spore contamination has been developed, showing a linear concentration range from 0.5 to 20 μM with a limit of detection of 10 nM. This study has demonstrated a promising future for various organic molecules containing phosphoryl moiety for the preparation of AIE-active metal nanoclusters.

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Zirconium Complexes

Cibuzar

Novas

Waterman

2021

Comprehensive Coordination Chemistry III

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A comparison of solution and solid state coordination environments for calcium(II), zirconium(IV), cadmium(II) and mercury(II) complexes with dipicolinic acid and methylimidazole derivatives

Cited by 12 publications

References 31 publications

Systematic Study on Zirconium Chelidamates: From a Molecular Complex to a M-HOF and a MOF

Systematic Study on Zirconium Chelidamates: From a Molecular Complex to a M-HOF and a MOF

Zirconium-Directed Supramolecular Self-Assembly of Coenzyme A@GNCs with Enhanced Phosphorescence for Developing Ultrasensitive Tracer Probe of Dipicolinic Acid, a Biomarker of Bacterial Spores

Zirconium Complexes

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