Polymer complexes. LXXII. Spectroscopic studies, thermodynamics, DNA binding and biological activity of polymer complexes

El‐Sonbati, A.Z.; Diab, M.A.; Serag, L.S.

doi:10.1002/aoc.4670

Cited by 2 publications

(1 citation statement)

References 49 publications

(77 reference statements)

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“…This matter can be attributed to the diverse applications of coordination polymers in various fields beside their structural beauties and appealing features. [ 1 ] These materials have found several applications in fields like catalysts, [ 2 ] magnetic materials, [ 3 ] drug delivery, [ 4 ] bioinorganic chemistry, [ 5 ] energy conversion and storage, [ 6 ] medicine, [ 7 ] sensor science, [ 8 ] optical materials [ 9 ] and many other fields. Generally, self‐assembly of suitable ligands with metal ions in a solvent is the common and comprehensive methods for production of coordination polymers.…”

Section: Introductionmentioning

confidence: 99%

1D Azido bridged Cu(II) coordination polymer with 1,3‐oxazolidine ligand as an effective catalyst for green click synthesis of 1,2,3‐triazoles

Bikas

Ajormal

Noshiranzadeh

et al. 2020

Applied Organom Chemis

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A new 1D azido bridged Cu(II) coordination polymer with 1,3‐oxazolidine based ligand, [Cu(H3L)(μ1,3‐N3)(N3)]n (1), was synthesized and characterized by elemental analysis and spectroscopic methods. The structure of 1 was also determined by single crystal X‐ray analysis which indicated the 1D polymeric chain is generated by end‐to‐end (EE) azide bridge. The obtained compound was employed as catalyst in green click synthesis of β‐hydroxy‐1,2,3‐triazoles from one‐pot three‐component cycloaddition reaction of epoxide‐azide‐alkyne. The catalytic reactions were carried out in water as a safe, cheap and green solvent. The catalytic studies indicated that the obtained 1D azido bridged Cu(II) coordination polymer is an active catalyst for preparing β‐hydroxy‐1,2,3‐triazoles. The effect of temperature on the selectivity of the catalytic system was studied and the results indicated this catalytic system has high selectivity at low temperatures. The structure the product obtained from the reaction of 2,3‐epoxypropylphenylether, azide and 1‐ethynyl‐1‐cyclohexanol (T4) was determined by single crystal X‐ray analysis. The results indicate Cu(II) coordination polymers can be a new class of catalytic systems for green click synthesis of 1,2,3‐triazoles.

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Section: Introductionmentioning

confidence: 99%

1D Azido bridged Cu(II) coordination polymer with 1,3‐oxazolidine ligand as an effective catalyst for green click synthesis of 1,2,3‐triazoles

Bikas

Ajormal

Noshiranzadeh

et al. 2020

Applied Organom Chemis

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Optical, morphological and photocatalytic properties of biobased tractable films of chitosan/donor-acceptor polymer blends

Jessop

Albornoz

Ramírez

et al. 2020

Carbohydrate Polymers

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Biobased tractable films consisting of blends of chitosan (CS) with polymer bearing carbazole derivatives as pendant groups and fluorene-thiophene as donor-acceptor units (referred to as DA) were prepared, and their optical, morphological and photocatalytic properties were studied. DA was dissolved in tetrahydrofuran (THF) and mixed with an acidified aqueous solution containing chitosan to obtain chitosan/DA (CS/DA) films by solution casting. The fabricated biobased films were characterized using spectroscopic techniques (FT-IR and UV-vis), thermogravimetry, mechanical assays, contact angle analysis, and atomic force microscopy (AFM). The effects of varying DA compositions and the results of exposure to visible-light irradiation of the films were also analyzed. The results indicated the existence of interactions between chitosan and DA and a potentially profitable light-driven response of these biobased films. This behavior was reflected in the optical, topographical, and contact angle properties of the films, which exhibited different characteristics before and after visible-light exposure. Finally, the photocatalytic performance of the biobased films was tested via the decomposition of methyl orange (MO), as a reaction model system. Our results revealed a significant photocatalytic activity (according to biobased film composition, approximately 64 % and 87 % of methyl orange were degraded under continuous visible-light irradiation for 120 min) of the films which is attributed to the combined presence and synergetic effects of the film-forming ability of chitosan and the photoproperties of DA.

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Polymer complexes. LXXII. Spectroscopic studies, thermodynamics, DNA binding and biological activity of polymer complexes

Cited by 2 publications

References 49 publications

1D Azido bridged Cu(II) coordination polymer with 1,3‐oxazolidine ligand as an effective catalyst for green click synthesis of 1,2,3‐triazoles

1D Azido bridged Cu(II) coordination polymer with 1,3‐oxazolidine ligand as an effective catalyst for green click synthesis of 1,2,3‐triazoles

Optical, morphological and photocatalytic properties of biobased tractable films of chitosan/donor-acceptor polymer blends

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