Syntheses, structures, and properties of four novel Ag(I) coordination polymers based on 2,6-dimethylpyrazine and benzene dicarboxylates

Cheng, Xiaoyue; Miao, Run-Qing; Zhong, Yuanyuan; Huang, Rong‐Bin; Zheng, Lan‐Sun

doi:10.1016/j.inoche.2017.10.003

Cited by 14 publications

(2 citation statements)

References 35 publications

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“…L was chosen as a ligand since it belongs to the class of bis-monodentate ligands which are able to form Ag-CPs, − although it has never been used for this purpose. On the other hand, selected coligands showed photoluminescent properties − and can easily form Ag-CPs ,,,,− photoluminescent in some cases. − ,, …”

Section: Introductionmentioning

confidence: 99%

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1D and 2D Silver-Based Coordination Polymers with Thiomorpholine-4-carbonitrile and Aromatic Polyoxoacids as Coligands: Structure, Photocatalysis, Photoluminescence, and TD-DFT Study

Ristić

Todorović

Blagojević

et al. 2020

Crystal Growth & Design

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Four silver-based coordination polymers, {[Ag(L)2](BF4)}∞ (1), {[Ag(H2BTC)(L)]·(H3BTC)}∞ (2), {[Ag2(H2BTEC)(L)2]·3.33H2O}∞ (3), and [Ag(H25SSA)(L)]∞ (4), were synthesized using thiomorpholine-4-carbonitrile (L) as the primary ligand and three aromatic polyoxoacids as coligands: trimesic (H3BTC), pyromellitic (H4BTEC), and 5-sulfosalicylic acid (H35SSA). Compounds 1 and 3 are two-dimensional, while 2 and 4 are one-dimensional. L acts as a bis-monodentate ligand, while the Ag(I) ion is three-coordinated in 2 and four-coordinated in all of the other compounds. The tetrahedral coordination of Ag(I) in 3 leads to an almost complete absence of intermolecular interactions with the metal center. All compounds show reasonable photocatalytic activity for photocatalytic degradation of mordant blue 9 dye, with reaction rates in the 0.036–0.056 min–1 range. Changes in the reaction rates can be correlated with the type and coordination of the coligand. Complex 3 exhibits photoluminescence at 77 K, while 4 exhibits photoluminescence at both room temperature and 77 K. Luminescence lifetimes indicate electronic transitions of singlet parentage, where transitions are allowed. A TD-DFT study determined the contributions of individual singlet–singlet electronic excitations to the fluorescence, indicating that metal– intraligand transitions are responsible for luminescence in both complexes.

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Section: Introductionmentioning

confidence: 99%

“…On the other hand, selected coligands showed photoluminescent properties 73−75 and can easily form Ag-CPs 56,73,84,85,76−83 photoluminescent in some cases. [76][77][78][79][80][81][82][83]85,86 2. EXPERIMENTAL SECTION 2.1.…”

Section: Introductionmentioning

confidence: 99%

1D and 2D Silver-Based Coordination Polymers with Thiomorpholine-4-carbonitrile and Aromatic Polyoxoacids as Coligands: Structure, Photocatalysis, Photoluminescence, and TD-DFT Study

Ristić

Todorović

Blagojević

et al. 2020

Crystal Growth & Design

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Responsive Protection of Magnesium Alloys From Multicorrosive Media by Constructing Nanofluidic Channels in Self‐Repairing Coatings

Yang,

Zha,

Wang

et al. 2024

Advanced Materials

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Low‐density magnesium (Mg) alloys are excellent engineering materials, and can significantly reduce energy consumption by replacing existing steel and aluminum materials. However, Mg species are susceptible to corrosion, especially in harsh environments (high‐temperature or acidic), severely limiting the range of practical applications. Here, 2D covalent organic framework (COF) is synthesized with pore diameters ranging from 1.5 to 2.9 nm to obtain ultrafast nanofluidic channels. Loaded with silver (Ag+) ions, 2‐mercaptobenzimidazole (2‐MB) inhibitors are immobilized in the COF channels through the silver bridges. Based on the strong metal‐complexing capability, Ag+ ions precipitated with various corrosive media (Cl−, Br−, I−, SO32−, S2−, S2O32− SO42−, CO32−, PO43−); meanwhile, the 2‐MB inhibitors are rapidly released through the nanofluidic channels, forming a passivation film as a corrosion barrier to protect the Mg substrate. After integration with commercial polyethersulfone (PES), the COF‐based coating exhibits high repairing capability achieving 100% damage restoration within 7 h, outperforming all existing coatings of Mg alloys. Notably, the coating shows almost complete protection of Mg alloys after being treated in respective 473 K, acidic (pH ≈4.0), and alkaline (pH ≈10.0) environments.

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New 3D Supramolecular Ag(I) Coordination Polymer Crystal Containing 2‐Quinaldic Acid Radical Biological Ligand: Crystal Structure and Anticancer Activity

Wang

Jun

Lei

et al. 2018

Crystal Research and Technology

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A new coordination polymer of {[Ag(Qina)(Bpp)]·(H 2 O) 2 } n (Qina =2-quinolinecarboxylic-carboxylate, Bpp = 4,4'-trimethylenedipyridine) is successfully synthesized and the structure is determined using single crystal X-ray diffraction. The complex is crystallized in the monoclinic system with P2 1 /c space group: Each atom of Ag(I) is chelated by one Qina group, with each Bpp ligand bridging two Ag(I) atoms to form the 1D polymer chains. Furthermore, the 3D supramolecular architecture is a costructure directed via weak stacking interactions of C-H···π and hydrogen bond. The complex shows competitive binding affinities in calf thymus DNA (ct-DNA) interaction by fluorescence spectroscopy. In addition, the complexes' cytotoxic activity is explored for two kinds of cancer cell lines (Hela, MCF-7), indicating an anticancer activity and cytotoxicity. CCDC: 1553426 Experimental Section Materials and InstrumentsAll reagents and solvents used in experimental and tests are commercially available and directly used without any treatment. As for characterizations, a model Finnigan EA 1112 was employed for Elemental analyses (including C, H, and N); and a Thermo Nicolet 380 FT-IR spectrophotometer for IR analysis by KBr disks method; a Bruker SMART APEX2 CCD diffractometer (Mo Kα, λ = 0.71073Å) for polymorphism analysis by single-crystal X-ray diffraction; as well as a Perkin-Elmer LS55 fluorescence spectrofluorimeter for emission spectrum.

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Syntheses, structures, and properties of four novel Ag(I) coordination polymers based on 2,6-dimethylpyrazine and benzene dicarboxylates

Cited by 14 publications

References 35 publications

1D and 2D Silver-Based Coordination Polymers with Thiomorpholine-4-carbonitrile and Aromatic Polyoxoacids as Coligands: Structure, Photocatalysis, Photoluminescence, and TD-DFT Study

1D and 2D Silver-Based Coordination Polymers with Thiomorpholine-4-carbonitrile and Aromatic Polyoxoacids as Coligands: Structure, Photocatalysis, Photoluminescence, and TD-DFT Study

Responsive Protection of Magnesium Alloys From Multicorrosive Media by Constructing Nanofluidic Channels in Self‐Repairing Coatings

New 3D Supramolecular Ag(I) Coordination Polymer Crystal Containing 2‐Quinaldic Acid Radical Biological Ligand: Crystal Structure and Anticancer Activity

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