Self-assembled 1D infinite inorganic [2]catenane and 2D sheet framework with calix[8]phenylazoimidazole and [4+4]metallomacrocyclic motifs based on silver and ditopic bis(imidazolyl)methane ligands

Jin, Tianqi; Zhou, Junqiang; Pan, Yuxiang; Yu, Hongwei; Jin, Chuan‐Ming

doi:10.1016/j.molstruc.2018.02.011

Cited by 4 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…72−77 Therefore, the 2D morphology of the nanoribbons of Ag-Benz could be due to the connection between a series of parallel 1D chains linked via intermolecular interactions. 78 All EDX spectra (Figure 5) from the Ag-MAFs nanostructures confirmed that the nanostructures were mainly composed of carbon (C), nitrogen (N), and Ag atoms, all detected in sharp peaks. The oxygen (O) peaks are mainly related to absorbed water.…”

Section: ■ Results and Discussionmentioning

confidence: 84%

“…in which the structural details of a series of Ag + complexes of substituted imidazoles were discussed. Weak intermolecular interactions (hydrogen bonding and π–π interactions) between imidazole rings play an important role in constructing 2D assemblies from 1D chains. − Therefore, the 2D morphology of the nanoribbons of Ag-Benz could be due to the connection between a series of parallel 1D chains linked via intermolecular interactions …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Tailoring the Biocidal Activity of Novel Silver-Based Metal Azolate Frameworks

Seyedpour

Shamsabadi

Salestan

et al. 2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The synthesis of nanostructures with tunable antibacterial properties using green solvents at room temperature is of environmental interest, and antibacterial nanomaterials are used in the fabrication of biofouling-resistant membranes for water purification and wastewater treatment. In this study, we investigate the effect of organic ligands on the antibacterial and structural properties of silver-based metal−azolate frameworks (Ag-MAFs). Three new Ag-MAFs were synthesized with silver, as the metal center, and imidazole-based linkers having different chemistries via a facile and environmentally friendly method conducted at room temperature. The coordination of silver ions with the linkers resulted in the formation of Ag-imidazole, Ag-2 methylimidazole, and Ag-benzimidazole complexes with octahedral, hexagonal nanosheet, and nanoribbon morphologies, respectively. The Ag-MAFs exhibited excellent antibacterial activity (up to 95% die-off of bacteria at a short exposure time of 3 h) in colloidal forms against both Gram-negative Escherichia coli (E. coli) and Gram-positive Bacillus subtilis (B. subtilis) because of synergetic effects of silver and the imidazole-based linkers. Ag-2 methylimidazole showed the highest antibacterial activity, owing to its high silver concentration and special nanocrystal structure that provides better contact with bacteria. This work indicates that the antibacterial activity of Ag-MAF nanostructures can be tailored by changing the organic linker, allowing for creating nanostructures with desired biocidal properties.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Tailoring the Biocidal Activity of Novel Silver-Based Metal Azolate Frameworks

Seyedpour

Shamsabadi

Salestan

et al. 2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…By using a range of different counterions, , further examples of polycatenanes were reported to be obtained with the presence of NO 3 – , BF 4 – , and ClO 4 – anions, while the anions PF 6 – and CF 3 SO 3 – produced one-dimensional zigzag cationic chains and larger [6Ag + 6L] macrocycles, respectively. The former anions are regarded to be stronger donors and smaller than the PF 6 – and CF 3 SO 3 – anions, leading to a preferential formation of the smaller interdigitated macrocycle in the linear polycatenane structure 95 .…”

Section: Linear Polycatenanesmentioning

confidence: 99%

“…By using a range of different counterions, 150,151 further examples of polycatenanes were reported to be obtained with the presence of NO 3 − , BF 4 − , and ClO 4 − anions, while the anions 97 was reported to be governed by an infinite π−π stacking arrangement. 152 Each component ring comprises two ditopic ligands, 1,1′-(phenanthrene-2,7-diyldimethanediyl)bis(1H-imidazole) (96), coordinating to two distorted tetrahedral copper centers forming [2Cu + 2L] metallacycles (Figure 29b).…”

Section: Linear Polycatenanesmentioning

confidence: 99%

Coordination-Directed Construction of Molecular Links

et al. 2020

View full text Add to dashboard Cite

Since the emergence of the concept of chemical topology, interlocked molecular assemblies have graduated from academic curiosities and poorly defined species to become synthetic realities. Coordination-directed synthesis provides powerful, diverse, and increasingly sophisticated protocols for accessing interlocked molecules. Originally, metal ions were employed solely as templates to gather and position building blocks in entwined or threaded arrangements. Recently, metal centers have increasingly featured within the backbones of the integral structural elements, which in turn use noncovalent interactions to self-assemble into intricate topologies. By outlining ingenious recent examples as well as seminal classic cases, this Review focuses on the role of metal−ligand paradigms in assembling molecular links. In addition, the ever-evolving approaches to efficient assembly, the structural features of the resulting architectures, and their prospects for the future are also presented.

show abstract

“…The simplest infinite interlocking systems are the one-dimensional polycatenanes (poly[n]catenanes). Such systems have been described involving interpenetrating metallocycles of silver/bis(2-methylimidazolyl) (Jin et al, 2006(Jin et al, , 2008(Jin et al, , 2018 and mercury/1,2-bis[(pyridin-4-ylthio)methyl]benzene (Xue et al, 2015). However, the lack of many examples beyond these suggests that the self-assembly of this interesting topological architecture is not easily achieved.…”

Section: Chemical Contextmentioning

confidence: 99%

Synthesis and structure of clozapine N-oxide hemi(hydrochloride): an infinite hydrogen-bonded poly[n]catenane

Peet¹,

Joyce²,

Ott³

et al. 2022

Acta Cryst E

View full text Add to dashboard Cite

The structure of the title compound, 2C18H19ClN4O·HCl or (CNO)2·HCl (C36H39Cl3N8O2), at 100 K has tetragonal (I4/m) symmetry. The dihedral angle between the benzene rings of the fused ring system of the CNO molecule is 40.08 (6)° and the equivalent angle between the seven-membered ring and its pendant N-oxide ring is 31.14 (7)°. The structure contains a very strong, symmetrical O—H...O hydrogen bond [O...O = 2.434 (2) Å] between two equivalent R 3N+—O− moieties, which share a proton lying on a crystallographic twofold rotation axis. These units then form a (CNO)4·(HCl)2 ring by way of two equivalent N—H...Cl hydrogen bonds (Cl− site symmetry m). These rings are catenated into infinite chains propagating along the c-axis direction by way of shape complementarity and directional C—H...N and C—H...π interactions.

show abstract

Self-assembled 1D infinite inorganic [2]catenane and 2D sheet framework with calix[8]phenylazoimidazole and [4+4]metallomacrocyclic motifs based on silver and ditopic bis(imidazolyl)methane ligands

Cited by 4 publications

References 25 publications

Tailoring the Biocidal Activity of Novel Silver-Based Metal Azolate Frameworks

Tailoring the Biocidal Activity of Novel Silver-Based Metal Azolate Frameworks

Coordination-Directed Construction of Molecular Links

Synthesis and structure of clozapine N-oxide hemi(hydrochloride): an infinite hydrogen-bonded poly[n]catenane

Contact Info

Product

Resources

About