2598-30-3Relevant articles and documents
Selective fluorescence turn-on of a prefluorescent azomethine with Zn 2+
Knipping, Etienne,Roche, Ivan Ulliel,Dufresne, Stephane,McGregor, Nicholas,Skene
, p. 4385 - 4387 (2011)
A prefluorescent conjugated azomethine (4) was prepared by condensing 8-hydroxyquinoline-5-carbaldehyde with 2-amine thiophene. The fluorescence of the azomethine was quenched in organic solvents including dichloromethane, methanol, DMSO, and DMF. However, the fluorescence of 4 was selectively revived in the presence of zinc and an absolute quantum yield Φfl = 0.15 was measured.
8-hydroxyquinoline-substituted boron-dipyrromethene compounds: Synthesis, structure, and OFF-ON-OFF type of pH-sensing properties
Chen, Yuting,Wang, Hailong,Wan, Liang,Bian, Yongzhong,Jiang, Jianzhuang
, p. 3774 - 3781 (2011)
A series of four novel 8-hydroxyquinoline-substituted boron-dipyrromethene derivatives, namely 4,4-difluoro-8-(5-(8-hydroxyquinoline))-3,5-dimethyl-4-bora- 3a,4a-diaza-s-indacene (1), 4,4-difluoro-8-(5-(8-hydroxyquinoline))-1,3,5,7- tetramethyl-4-bora-3a,4a-diaza-s-indacene (2), 4,4-difluoro-8-(5-azastyryl-(8- hydroxyquinoline))-3,5-dimethyl-4-bora-3a,4a-diaza-s-indacene (3), and 4,4-difluoro-8-(5-azastyryl-(8-hydroxyquinoline))-1,3,5,7-tetramethyl-4-bora-3a, 4a-diaza-s-indacene (4), have been synthesized and characterized by a series of spectroscopic methods. The molecular structures of 1 and 2 have been determined by single-crystal X-ray diffraction analyses. The two methyl substituents attached at C-1 and C-7 positions of boron-dipyrromethene (Bodipy) in compound 2 was revealed to prevent the free rotation of the 8-hydroxyquinoline (8-HQ) moiety, resulting in an almost vertical 8-HQ-Bodipy configuration of this compound. This is obviously different from those for 1 with the dihedral angle between 8-hydroxyquinoline and Bodipy moieties of 65.44 and 66.79° due to the lack of methyl substituents in the latter compound. The intense fluorescence from the Bodipy subunit of these compounds was revealed to gradually get diminished along with either decreasing or increasing the pH value under acidic and basic conditions, respectively, in particular for 1, 2, and 4 because of the photoinduced intramolecular electron transfer from excited Bodipy moiety to 8-HQ unit and just an opposite process. This renders these compounds the first OFF-ON-OFF type of pH-dependent fluorescent sensors. Nevertheless, both the intrinsic fluorescence of these compounds and their fluorescent quenching properties along with the change in the pH value have been found to depend on the steric configuration as well as the linking group between 8-hydroxyquinoline and Bodipy moieties, revealing the effect of molecular structure on their fluorescence properties.
A covalently bonded AlQ3/SiO2 hybrid material with blue light emission by a conventional sol-gel approach
Zeng, Hongyu,Huang, Weimin,Shi, Jianlin
, p. 880 - 881 (2006)
We report the design and synthesis of a covalently bonded AlQ 3/SiO2 hybrid material with strong blue light emission by a sol-gel approach, which make AlQ3 solution-processable and chemically stable. The Royal Society of Chemistry 2006.
Characterization of N-hexadecyl-5-iminomethyl-8-hydroxyquinoline and oriented crystallization of CuSO4?5H2O under its monolayer
Jiang, Chaoyang,Tang, Ruikang,Tai, Zihou
, p. 81 - 84 (1998)
A new amphiphilic ligand, N-hexadecyl-5-iminomethyl-8-hydroxyquinoline (HIHQ), has been synthesized in a convenient method and the characteristics of its monolayer on pure water and on a subphase containing copper ions investigated. LB films of HIHQ were studied by small angle X-ray scattering, UV-VIS and XPS spectra. An oriented crystallization was examined at the monolayer/water interface. A good selection of the (110) crystal face of CuSO4?SH2O occurred at the solid state of the monolayer due to the perfect match between this crystal face and the definite lattice structure of the monolayer.
Design and synthesis of Alq3-functionalized polymers
Meyers, Amy,Weck, Marcus
, p. 1766 - 1768 (2003)
Synthesis of an Alq3-containing monomer and its chain-growth polymerization were demonstrated via ring-opening metathesis polymerization. Polymerization was complete within 12 h under mild polymerization conditions and solubility could be tailored via the incorporation of a comonomer. All copolymers retained the absorption and emission properties of Alq3 in solution. This indicated that the polymer coil did not interfere with the luminescence properties of the pendant Alq3 groups.
Four D-A ’ - (π-A)2 Polyalkylated pyridine derivative alloy metal complex as well as preparation method and application thereof
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Paragraph 0035-0040; 0043, (2021/09/01)
The invention relates to four 1-D A (π-’ -) shown A. 2 The polymeric alkylated pyridine derivative alloy belongs to the complex BDTT-PBD-Cd. The invention BDTT-PBD-Zn, BDTT-PBD-Cu and BDTT-PBD-Ni, and a preparation method and application thereof, wherein the metal complex formed by coordination of alkylated pyridine derivatives as a main ligand and a metal serves as an electron donor BDTT, and D-Heck D (π-A A) is synthesized through ’ - reaction. 2 The photovoltaic performance test based on the dye-sensitized solar cell taking BDTT-PBD-Cd, BDTT-PBD through Zn, BDTT-PBD-Cu and BDTT-one-PBD as the dye sensitizer has a good effect: the thermal decomposition temperature is above Ni 176 °C 7.02% 8.55% 9.76%, the thermal stability is good PCE, and the dye-sensitized 6.51 solar cell has a certain prospect in the aspect of application of the dye-sensitized solar cell.
8-hydroxyquinoline derivative and cadmium complex dye sensitizer (BDTT-VCd) as well as preparation method and application thereof
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Paragraph 0027; 0029-0033, (2021/09/08)
The invention relates to a D (-A-pi-A) 2 type 8-hydroxyquinoline derivative and cadmium complex dye sensitizer (BDTT-VCd) as shown in a formula 1 as well as a preparation method and application of the D (-A-pi-A) 2 type 8-hydroxyquinoline derivative and cadmium complex dye sensitizer (BDTT-VCd). The dye sensitizer is a D (-A-pi-A) 2 type complex synthesized by reacting an 8-hydroxyquinoline derivative and cadmium complex with an electron donor (D) benzodithiophene bithiophene (BDTT) through Heck coupling, wherein the 8-hydroxyquinoline derivative and cadmium complex contains functional groups such as an auxiliary electron acceptor (A), a pi bridge, a main electron acceptor (A) and an anchoring group. Experiments show that a photovoltaic performance test of a dye-sensitized solar cell taking the complex as a dye sensitizer shows the following good effects that: the photoelectric conversion efficiency (PCE) reaches 8.26%; the dye thermal stability is high; the thermal decomposition temperature reaches 280 DEG C or above; the complex can meet the requirement of being used as a photovoltaic material; the complex has a certain prospect in the basic development and application aspects of dye-sensitized solar cells.