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One-dimensional chain-like terbium (III) organic coordination polymer as well as preparation method and application thereof

A coordination polymer and chain-like technology, which is applied in the field of synthesis of new catalytic materials, can solve the problems of few reports on catalytic performance, and achieve the effects of good catalytic performance, high catalytic activity and good luminescent performance

Inactive Publication Date: 2017-07-07
HENGYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has been reported in the literature that rare earth complexes catalyze the polymerization of ε-caprolactone, the oxidation of benzyl alcohol, and the oxidation of benzoin, but most of the previous reports are based on rare earth inorganic complexes. For rare earth organic complexes in these types of oxidation, polymerization Catalytic performance in

Method used

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  • One-dimensional chain-like terbium (III) organic coordination polymer as well as preparation method and application thereof
  • One-dimensional chain-like terbium (III) organic coordination polymer as well as preparation method and application thereof
  • One-dimensional chain-like terbium (III) organic coordination polymer as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]The synthesis of one-dimensional chain terbium (III) organic coordination polymer, its reaction steps are as follows:

[0043] Add 0.72mmol (159.15mg) 2,4-dichlorophenoxyacetic acid, 0.26mmol (about 113.11mg) terbium nitrate hexahydrate, 0.25mmol (49.53mg) 1,10-phenanthroline to 30mLN,N' - In a mixed solvent of dimethylformamide and methanol (volume ratio 1:4), heat and reflux in a water bath for 2 hours, adjust the pH to 5.5-6.0 with a certain concentration of ammonia water, continue heating and stirring, control the temperature at 65°C, and react for 15 hours , to obtain a colorless solution, filtered, sealed, and naturally volatilized at room temperature. After three weeks, a colorless crystal suitable for X-ray single crystal structure analysis was precipitated, with a yield of 52.36%. M.P.185~187℃; IR main absorption peaks are: 1693.5(vs), 1603(vs), 1479(vs), 1427(vs), 1290(m), 1263(w), 1231(w), 1071(w ), 839(vs), 798(w), 725(vs), 696(s), 611(s), 606(s). Elemental...

Embodiment 2

[0045] Synthesis of one-dimensional chain terbium(III) organic coordination polymers:

[0046] Add 0.48mmol (106.10mg) 2,4-dichlorophenoxyacetic acid, 0.52mmol (109.17mg) terbium hydroxide, 0.36mmol (71.32mg) 1,10-phenanthroline to 30mL N,N'-di In a mixed solvent of methylformamide and methanol (volume ratio 1:3), heat and reflux in a water bath for 2 hours, adjust the pH to 6.0-6.5 with a certain concentration of potassium hydroxide, continue heating and stirring, control the temperature at 65°C, and react for 15 hours , to obtain a colorless solution, filtered, sealed, and naturally volatilized at room temperature. After three weeks, a colorless crystal suitable for X-ray single crystal structure analysis was precipitated, with a yield of 46.35%.

Embodiment 3

[0048] Synthesis of one-dimensional chain terbium(III) organic coordination polymers:

[0049] Add 0.64mmol (141.47mg) 2,4-dichlorophenoxyacetic acid, 0.48mmol (135.98mg) terbium ferric chloride hexahydrate, 0.36mmol (71.32mg) 1,10-phenanthroline to 25mLN,N' - In a mixed solvent of dimethylacetamide and ethanol (volume ratio 1:4), heat and reflux in a water bath for 2 hours, adjust the pH to 6.5 to 6.8 with a certain concentration of sodium hydroxide solution, continue heating and stirring, and control the temperature at 68°C, After reacting for 14 hours, a colorless solution was obtained, which was filtered, sealed, and volatilized naturally at room temperature. After three weeks, a colorless crystal suitable for X-ray single crystal structure analysis was precipitated, with a yield of 48.21%.

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Abstract

The invention discloses a one-dimensional chain-like terbium (III) organic coordination polymer as well as a preparation method and application thereof. A compound takes 2,4-dichlorphenoxyacetic acid as a main ligand and 1,10-phenanthroline as an auxiliary ligand and has a one-dimensional chain-like structure; the preparation method of the compound comprises the following steps: taking the 2,4-dichlorphenoxyacetic acid, terbium salt and the 1,10-phenanthroline as raw materials and synthesizing through a solvent method; carrying out self-evaporation and crystallization to obtain a crystal. The organic coordination polymer emits relatively strong green fluorescence under the illumination of ultraviolet light, can be used as a light-emitting material and is widely applied to preparation of light emitting devices; meanwhile, the organic coordination polymer has a relatively good catalytic performance and has the advantages of high catalytic activity, moderate catalytic reaction conditions and the like in a process of synthesizing polyester by catalyzing binary acid and dihydric alcohol; the preparation method of the organic coordination polymer is simple to operate and has moderate reaction conditions; the obtained product has high yield and uniform crystal particles.

Description

technical field [0001] The invention relates to a metal-organic coordination polymer, in particular to a one-dimensional chain terbium (III) organic coordination polymer and a preparation method thereof, and a one-dimensional chain terbium (III) organic coordination polymer as a luminescent material or The application as a catalyst belongs to the field of synthesis of new catalytic materials. Background technique [0002] Rare earth luminescent materials have the advantages of high luminous brightness, long afterglow time, adjustable emission wavelength, no radiation and no pollution, etc. that other luminescent materials do not have. It is an indispensable basic material in the production of plant growth, ultraviolet disinfection, medical care, luminous display and simulated natural light full-spectrum light source, etc.). The research on rare earth organic complex luminescent materials is an active topic in recent years. In the past, most of the research and development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C08G63/84C09K11/06
CPCC08G83/008C08G63/84C09K11/06C09K2211/182
Inventor 李薇李翀宇李昶红刘洋陈志敏
Owner HENGYANG NORMAL UNIV
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