Two New Zn(II)/Cd(II) Coordination Polymers Based on Rigid Squaric Acid: Crystal Structure, Topology and Fluorescent Properties

Tang, Ping; Dong, Wen‐Wen; Xia, Wei; Zhao, Jun

doi:10.1007/s10904-014-0118-9

Cited by 11 publications

(7 citation statements)

References 30 publications

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“…In this context, in the present investigation, ethylene brassylate was copolymerized with squaric acid (SA), a very strong acid suitable for strong intermolecular hydrogen bonds [ 27 ]. As a versatile organic molecule, SA was also used in various fields including polycondensation processes or bioconjugates preparation [ 28 , 29 , 30 , 31 , 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(Ethylene Brassylate-Co-squaric Acid) as Potential Essential Oil Carrier

Chiriac¹,

Rusu²,

Niţă³

et al. 2021

Pharmaceutics

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Bio-based compounds are a leading direction in the context of the increased demand for these materials due to the numerous advantages associated with their use over conventional materials, which hardly degrade in the environment. At the same time, the use of essential oils and their components is generated mainly by finding alternative solutions to antibiotics and synthetic preservatives due to their bioactive characteristics, but also to their synergistic capacity during the manifestation of different biological properties. The present study is devoted to poly(ethylene brassylate-co-squaric acid) (PEBSA), synthesis and its use for thymol encapsulation and antibacterial system formation. The synthesized copolymer, performed through ethylene brassylate macrolactone ring-opening and copolymerization with squaric acid, was physicochemical characterized. Its amphiphilic character allowed the entrapment of thymol (Ty), a natural monoterpenoid phenol found in oil of thyme, a compound with strong antiseptic properties. The copolymer chemical structure was confirmed by spectroscopic analyses. Thermal analysis evidenced a good thermal stability for the copolymer. Additionally, the antimicrobial activity of PEBSA_Ty complex was investigated against eight different reference strains namely: bacterial strains—Staphylococcus aureus ATCC25923, Escherichia coli ATCC25922, Enterococcus faecalis ATCC 29212, Klebsiella pneumonie ATCC 10031 and Salmonella typhimurium ATCC 14028, yeast strains represented by Candida albicans ATCC10231 and Candida glabrata ATCC 2001, and the fungal strain Aspergillus brasiliensis ATCC9642.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(Ethylene Brassylate-Co-squaric Acid) as Potential Essential Oil Carrier

Chiriac¹,

Rusu²,

Niţă³

et al. 2021

Pharmaceutics

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“…A literature survey reveals that coordination polymers are well known for their high thermal stability and much work has been reported on their synthesis, characterization and thermal properties . Indeed, coordination polymers play an important role in the fields of material science, metallurgy, environmental protection, conductivity, luminescence, thermal insulation, catalysis, magnetism, nonlinear optics and coating materials …”

Section: Introductionmentioning

confidence: 99%

“…have investigated in depth the coordination behaviour, chemical equilibria, thermal properties and electron paramagnetic resonance of novel supramolecular d‐block polymer complexes. Interest in coordination chemistry continues to increase with the preparation of organic/aliphatic ligands containing a variety of donor groups and it is multiplied when the ligands have biological importance . The number and diversity of nitrogen, oxygen and/or sulfur chelating agents used to prepare new coordination and organometallic compounds have increased rapidly during the past few years …”

Section: Introductionmentioning

confidence: 99%

Polymer complexes. LXVIII. Spectroscopic studies of supramolecular copper(II) polymeric complexes of biologically active monomer derived from novel sulfa drug

El‐Sonbati

Diab

Morgan³

et al. 2017

Applied Organom Chemis

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The novel ligand N‐[4‐(5‐methylisoxazol‐3‐ylsulfamoyl)phenyl]acrylamide (HL) was prepared via amidation of 4‐amino‐N‐(5‐methylisoxazol‐3‐yl)benzenesulfonamide with acryloyl chloride in benzene as solvent. Polymeric complexes with HL were prepared and characterized using elemental analysis, spectral studies (infrared, mass, UV–visible and electron paramagnetic resonance), powder X‐ray diffraction, thermal analysis, molar conductivity and magnetic susceptibility. Infrared spectral studies reveal that HL behaves as a neutral bidentate ligand. Powder X‐ray diffraction patterns of HL and polymer complexes show many diffraction peaks which indicate polycrystalline phases. Based on magnetic moment and solid reflectance measurements, the polymer complexes have square planar and octahedral geometries. Molecular docking was used to predict the binding between HL and the receptors of 3hb5‐oxidoreductase (breast cancer) and 2q7k‐hormone (prostate cancer).

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“…Transition metal polymer complexes are of particular interest due to their various applications . Heterocyclic azo dyes attract considerable interest and play an important role in the development of chemistry.…”

mentioning

confidence: 99%

Polymer complexes. LXX. Synthesis, spectroscopic studies, thermal properties and antimicrobial activity of metal(II) polymer complexes

Morgan¹,

El‐Sonbati

El‐Mogazy

2018

Applied Organom Chemis

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Ni(II) or Co(II)). The structures of the polymer complexes were identified using elemental analysis, infrared and electronic spectra, molar conductance, magnetic susceptibility, X-ray diffraction and thermogravimetric analysis. The interaction between the polymer complexes and calf thymus DNA showed a hypochromism effect. HL and its polymer complexes were tested against bacterial and fungal species. Co(II) polymer complex 2 is the most effective against Klebsiella pneumoniae and is more active than penicillin. The results showed that Ni(II) polymer complex 5 is a good antibacterial agent against Staphylococcus aureus and Pseudomonas aeruginosa. Molecular docking was used to predict the binding between the monomer with the receptors of prostate cancer (PDB code: 2Q7L Hormone) and breast cancer (PDB code: 1JNX Gene regulation). Coats-Redfern and Horowitz-Metzger methods were applied for calculating the thermodynamic parameters of HL and its polymer complexes. The thermal activation energy of decomposition for HL is higher than that for the polymer complexes.

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Two New Zn(II)/Cd(II) Coordination Polymers Based on Rigid Squaric Acid: Crystal Structure, Topology and Fluorescent Properties

Cited by 11 publications

References 30 publications

Synthesis of Poly(Ethylene Brassylate-Co-squaric Acid) as Potential Essential Oil Carrier

Synthesis of Poly(Ethylene Brassylate-Co-squaric Acid) as Potential Essential Oil Carrier

Polymer complexes. LXVIII. Spectroscopic studies of supramolecular copper(II) polymeric complexes of biologically active monomer derived from novel sulfa drug

Polymer complexes. LXX. Synthesis, spectroscopic studies, thermal properties and antimicrobial activity of metal(II) polymer complexes

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