Preparation and characterization of 8-hydroxyquinoline-functionalized polysulfone and preliminary study on luminescence property of its complex with Al(III)

Gao, Baojiao; Zhang, Wei; Lei, Qingjuan; Men, Jiying

doi:10.1007/s13233-013-1065-y

Cited by 9 publications

(5 citation statements)

References 32 publications

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“…The band at 1900 cm −1 indicated C=N vibration. The peaks at 1600 and 1275 cm −1 were attributed to the stretching modes of C=C and C–O [ 23 ]. Upon complexation, the Al(DCHQ) 3 spectrum had a reduced band at 3370 cm −1 , which could be assigned to complexation.…”

Section: Resultsmentioning

confidence: 99%

Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions

Wang

Tang

et al. 2022

Materials

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Achieving multi-color luminescence with a single atomic center in transition metal complexes is a challenge. In this work, luminescent materials with tunable emission properties were realized by complexation between aluminum (III) ions with the ligands 3-hydroxyflavone (3-HF) and 5,7-dichloro-8-hydroxyquinoline (DCHQ). Aluminum (III) complexes with a single ligand emitted blue from 3-HF and green from DCHQ. High quantum yields (QYs) of 29.42% and 37.00% were also obtained, respectively. DFT calculations revealed details of the photophysical properties of the complexes. Correspondingly, cyan light emission was obtained if these two complexes were mixed together, from which the emission wavelength was located at 470 nm and the QY was 20.52%, under 290 nm excitation. More importantly, the cyan light emitted by the mixtures had selective sensitivity to different metal ions, resulting in either quenching the fluorescence (in the case of Fe3+) or enhancing the fluorescence (in the case of In3+). The fluorescence enhancement effect of In3+ on metal complexes has not been previously reported, neither for transition metal nor lanthanide ions. The linear quenching behavior of Fe3+ functions in the 50–700 μM concentration range, and the linear enhancement behavior of In3+ is demonstrated in the 300–800 mM concentration range.

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Section: Resultsmentioning

confidence: 99%

Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions

Wang

Tang

et al. 2022

Materials

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“…The 1 H NMR spectra of PEG‐ b ‐PVK‐ co ‐PHQHEMA( x ) are shown in Figure . The peaks of the chemical shifts at 8.61 and 4.88 ppm are corresponding to the characteristic H atoms in the quinoline and carbazole groups, which are labeled with “a” and “b,” respectively . The ratio of the integration value of the peak at 8.61 ppm to that at 4.88 ppm ( I a / I b ) indicates the mole ratio of the quinoline unit to the carbazole unit in the block copolymers.…”

Section: Resultsmentioning

confidence: 99%

“…Alq 3 ‐cotaining polymer (PMMA‐co‐Alq 3 ) has been synthesized from PMMA‐co‐HEMA‐CH 2 ‐Hq chelated with di‐(8‐hydroxyquinoline) isopropanol aluminum (Pr‐ i ‐O‐Alq 2 ) . Alq 3 functionalized polysulfone (Alq 3 ‐PSF) has been also by the coordination reaction between Pr‐ i ‐O‐Alq 2 and 8‐hydroxyquinoline functionalized polysulfone (PSF‐HQ) . Here, Alq 3 with a good electron‐transporting property is introduced into the PVK chains via copolymerization, which is in favor of balancing the charge‐transporting properties of the copolymer films.…”

Section: Introductionmentioning

confidence: 99%

Enhanced emission from Alq₃ in amphiphilic block copolymers PEG‐b‐PVK‐co‐Alq₃ synthesized via RAFT polymerization

Fang

Kong

Zhang

et al. 2016

J of Applied Polymer Sci

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A series of amphiphilic poly(N-vinyl carbazole) (PVK) block copolymers containing tris(8-hydroxyquinoline) aluminum (Alq 3 ) have been synthesized via reversible addition-fragmentation chain transfer (RAFT) radical polymerization with trithiocarbonate terminated polyethylene glycol (PEG) as a RAFT agent. The chemical structures of the block copolymers have been identified by 1 H nuclear magnetic resonance and Fourier transform infrared spectrometer. The analysis of gel permeation chromatography indicates that the polydispersity indices of the block copolymers are lower than 1.30. The results of thermogravimetric analysis show that the decomposition temperatures of the copolymers are higher than 330 8C. The optical properties of the copolymers have been investigated and the obviously enhanced emission from Alq 3 has been found due to resonance energy transfer from PVK to Alq 3 . V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44573.

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“…These complexes also disturb the respiration process of the cell and thus block the synthesis of the proteins that restricts further growth of the organism and as a result, the microorganism dies. Among all the metal complexes, the copper metal complex was found to be the most active against all tested microorganisms (11)(12)(13)(14)(15)(16)(17)(18) and the manganese complex was found to be the least active (28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38). In comparison to the standard drug, the copper metal complex has shown equal antibacterial activity against E. coli (18) and comparable against all other microorganisms.…”

Section: Antibacterial Activitymentioning

confidence: 99%

“…Various approaches can be visualized to synthesize or modify metal complex structures by utilizing the reactivity of this heterocycle with various derivatives [1][2][3][4][5][6][7][8][9][10][11][12]. 8HQ and its derivatives are also showing the bioactivities, including anticancer [13,14], antibacterial [15,16], antidyslipidemic and antioxidative properties [17], vasorelaxing properties [18], antivirus [19,20], and antiplatelet [21] activities.…”

Section: Introductionmentioning

confidence: 99%

Studies on metal complexes of 1-((8-hydroxyquinolin-5-yl)methyl)-3-(thiazol-2-ylimino)indolin-2-one

Patel

2015

Res Chem Intermed

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Novel ligand 1-((8-hydroxyquinolin-5-yl)methyl)-3-(thiazol-2-ylimino)indolin-2-one was synthesized by condensation of 5-(chloromethyl)-1,8a-dihydroquinolin-8-ol with 3-(thiazol-2-ylimino)indolin-2-one. Metal complexes of this ligand were prepared using various transition metal ion salts, viz., Mn(II), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II). All synthesized compounds were characterized by various spectroscopic techniques. Thermogravimetric analysis of metal complexes was also carried out. Geometry of the metal complexes was carried out by electronic spectral analysis and magnetic measurement studies. The ligand and metal complexes were screened for their antibacterial activities against Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Proteus vulgaris, and Pseudomonas aeruginosa. The metal complexes are found more potent bactericides than the ligand. The interaction of ligand and its complexes with plasmid (pUC 19) DNA and calf thymus DNA was investigated by gel electrophoresis measurements. The superoxide dismutase mimetic activity of the ligand and its metal complexes has also been assessed for their ability to inhibit the reduction of nitrobluetetrazolium chloride.

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Preparation and characterization of 8-hydroxyquinoline-functionalized polysulfone and preliminary study on luminescence property of its complex with Al(III)

Cited by 9 publications

References 32 publications

Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions

Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions

Enhanced emission from Alq₃ in amphiphilic block copolymers PEG‐b‐PVK‐co‐Alq₃ synthesized via RAFT polymerization

Studies on metal complexes of 1-((8-hydroxyquinolin-5-yl)methyl)-3-(thiazol-2-ylimino)indolin-2-one

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Preparation and characterization of 8-hydroxyquinoline-functionalized polysulfone and preliminary study on luminescence property of its complex with Al(III)

Cited by 9 publications

References 32 publications

Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions

Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions

Enhanced emission from Alq3 in amphiphilic block copolymers PEG‐b‐PVK‐co‐Alq3 synthesized via RAFT polymerization

Studies on metal complexes of 1-((8-hydroxyquinolin-5-yl)methyl)-3-(thiazol-2-ylimino)indolin-2-one

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Enhanced emission from Alq₃ in amphiphilic block copolymers PEG‐b‐PVK‐co‐Alq₃ synthesized via RAFT polymerization