scholarly journals Two mixed-ligand coordination polymers based on 2,5-thiophenedicarboxylic acid and flexible N-donor ligands: the protective effect on periodontitis via reducing the release of IL-1β and TNF-α

2020 ◽  
Vol 18 (1) ◽  
pp. 391-398
Author(s):  
Shao-Hsuan Wu ◽  
Jun-Hui Huang
Keyword(s):  
Coordination Polymers ◽  
Gingival Crevicular Fluid ◽  
Mixed Ligand ◽  
Donor Ligands ◽  
X Ray Diffraction ◽  
Functional Studies ◽  
Tnf Α ◽  
Mucosal Cells ◽  
Ligand Coordination ◽  
Crevicular Fluid

AbstractTwo novel mixed-ligand coordination polymers, {[Co(tdc)(btrp)]·0.67DMF}n (1) and {[Zn2(bimb)2(tdc)2]·2H2O}n (2) involving 2,5-thiophenedicarboxylate (H2tdc), and bitopic flexible N-donor ligands, 1,3-bis(1,2,4-triazol-1-yl)propane (btrp) and 1,4-bis((1H-benzo[d]imidazol-1-yl)methyl)benzene (bimb), have been synthesized by the hydrothermal method and characterized via IR, elemental analysis, thermal analysis, and powder X-ray diffraction. The biological functional studies were performed; the treatment activity of the compounds on periodontitis and the specific mechanism was explored. First, the real-time RT-PCR was carried out to determine the inflammatory genes nf-κb and p53 relative expression in periodontal mucosal cells after treating with compounds 1 and 2. Then, the level of the inflammatory cytokine in the gingival crevicular fluid after treating with compounds was also determined by the ELISA detection kit.

Crystal structures, topological analysis and luminescence properties of three coordination polymers based on a semi-rigid ligand and N-donor ligand linkers

2016 ◽  
Vol 40 (7) ◽  
pp. 5957-5965 ◽  
Author(s):  
Xiaobin Liu ◽  
Zhenyu Xiao ◽  
Ao Huang ◽  
Wen Wang ◽  
Liangliang Zhang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Coordination Polymers ◽  
Topological Analysis ◽  
Mixed Ligand ◽  
Donor Ligands ◽  
Luminescence Properties ◽  
Donor Ligand ◽  
Ligand Coordination

Three new mixed-ligand coordination polymers have been synthesized based on 3,3′-(anthracene-9,10-diyl)diacrylate acid and different N-donor ligands. Complex 2 displays rapid and selective sensing of Fe3+.

Synthesis, structures and physical properties of mixed-ligand coordination polymers based on a V-shaped dicarboxylic ligand

CrystEngComm ◽  
2015 ◽  
Vol 17 (6) ◽  
pp. 1381-1388 ◽  
Author(s):  
Yan-Yan Yang ◽  
Zu-Jin Lin ◽  
Tao-Tao Liu ◽  
Jun Liang ◽  
Rong Cao
Keyword(s):  
Benzoic Acid ◽  
Physical Properties ◽  
Coordination Polymers ◽  
Mixed Ligand ◽  
Donor Ligands ◽  
Ligand Coordination ◽  
Solvothermal Conditions

Four coordination polymers based on the V-shaped H2hfipbb ligand, (H2hfipbb = 4,4′-(hexafluoroisopropylidene)-bis(benzoic acid), and different auxiliary linear N-donor ligands have been constructed under solvothermal conditions and structurally characterized.

Synthesis, characterization and fluorescence properties of mixed-ligand cobalt(II), copper(II), zinc(II) and cadmium(II) coordination polymer complexes involving 4,4’-bipyridine and 2,5-pyridinedicarboxylic acid

2021 ◽  
Vol 25 (7) ◽  
pp. 147-156
Author(s):  
Ajeet Kumar Maurya ◽  
Ashish Kumar Srivastava ◽  
Krishna Srivastava ◽  
Jagdish Prasad
Keyword(s):  
Coordination Polymer ◽  
Thermal Analyses ◽  
Mixed Ligand ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
Polymer Complexes ◽  
Pyridinedicarboxylic Acid ◽  
Elemental Analyses ◽  
Ligand Coordination ◽  
Ft Ir

Four mixed-ligand coordination polymer complexes of cobalt(II), copper(II), zinc(II), and cadmium(II) were synthesized by solvothermal method in 1:1:1 metal: 4,4’-bipy: 2,5-pdc molar ratio using 2,5-pyridinedicarboxylic acid (2,5-pdc) and 4,4’-bipyridine (4,4’-bipy). These complexes are viz; 1. [Co2(4,4'-bipy)(2,5-pdc)2(H2O)4]n 2. [Cu2(4,4'-bipy) (2,5-pdc)2]n 3. [Zn2(4,4'-bipy)(2,5-pdc)2(H2O)4]n and 4. [Cd3(4,4'-bipy)(2,5-pdc)2(OOCCH3)2(H2O)4]n.. All these complexes (1-4) have been characterized by elemental analyses (C,H,N), FT-IR-spectra, thermal analyses (TGA/DTA/DTG), fluorescence spectra and powder X-ray diffraction (PXRD) analyses to arrive at conclusion regarding their geometrical structure.

Mixed Ligand Coordination Polymers for Metallogelation and Iodine Adsorption

2018 ◽  
Vol 19 (1) ◽  
pp. 470-478 ◽  
Author(s):  
Swapneswar Mondal ◽  
Parthasarathi Dastidar
Keyword(s):  
Coordination Polymers ◽  
Mixed Ligand ◽  
Ligand Coordination ◽  
Iodine Adsorption

Flexible N-Donor Ligands Direct the Structural Characteristics of CoII Complexes: Syntheses, Structures, and Magnetic Properties

2019 ◽  
Vol 72 (5) ◽  
pp. 341 ◽  
Author(s):  
Yu-Ting Yang ◽  
Chang-Zheng Tu ◽  
Xiao-Lin Xu ◽  
Li-Li Xu ◽  
Bang-Ling Yan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Coordination Polymers ◽  
Structural Characteristics ◽  
Donor Ligands ◽  
X Ray Diffraction ◽  
Thermal Stabilities ◽  
Ancillary Ligands ◽  
X Ray ◽  
Elemental Analyses ◽  
Bilayered Structure

Solvothermal reactions of 3,3′,5,5′-biphenyltetracarboxylic acid (H4BPTC) and cobalt(ii) ions in the presence of two different flexible N-donor ancillary ligands afford two novel coordination polymers, {[Co(BPTC)0.5(bix)]·H2O}n (1), {[Co(BPTC)0.5(bpp)]·3H2O}n (2) (bix=1,4-bis(imidazol-1-ylmethyl)benzene; bpp=1,3-bis(4-pyridyl)propane). Their structures have been determined by elemental analyses, IR spectra, single-crystal X-ray diffraction analyses, and powder X-ray diffraction. The pillared layered framework of 1 can be simplified to a (4,6)-connected net with a Schläfli symbol of (44·62)(44·69·82). Complex 2 manifests a bilayered structure, and can be simplified to a (4,4)-connected net with a Schläfli symbol of (55·8)(54·62). The thermal stabilities of both complexes and the magnetic behaviours of 1 are also discussed.

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