Method for preparing rare-earth beta diketone-base functionalized non-linear optical composite material

A nonlinear optics and composite material technology is applied in the field of preparation of rare earth β-diketone functionalized nonlinear optical composite materials, which can solve the problems of poor light stability and thermal stability of pure rare earth organic complexes, and cannot be widely used. , to avoid the phenomenon of phase separation, good thermal stability and mechanical properties, low production cost

Inactive Publication Date: 2012-12-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor light stability and thermal stability of pure rare earth organic complexes prevent them from being widely used in social life.

Method used

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  • Method for preparing rare-earth beta diketone-base functionalized non-linear optical composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]Weigh 0.104g of hexafluoroacetylacetone and add it to a three-neck flask containing 20ml of tetrahydrofuran solution, stir to dissolve it, then add 0.012g of sodium hydride in 6ml of anhydrous tetrahydrofuran solution drop by drop, at 70°C, nitrogen Protect and heat to reflux for 2 h, and add dropwise a solution of 0.123 g of triethoxysilylisocyanopropyl isocyanate in 6 ml of tetrahydrofuran while stirring. Then keep the temperature of the whole solution at 65° C., reflux for 12 h under the protection of nitrogen, cool to room temperature, and distill off the organic solvent under reduced pressure. The resulting product was washed three times with 8 ml of cyclohexane to obtain a pale yellow oily liquid. Use 16ml of N,N dimethylformamide solvent to dissolve the obtained hexafluoroacetylacetonate bridge molecules, then take 0.226g of small organic molecules p-nitrostyryl pyridine and 0.231g of erbium nitrate and dissolve them in absolute ethanol to obtain The ethanol solu...

Embodiment 2

[0033] Add 0.111g of thienoyl trifluoroacetone into a three-necked flask filled with 20ml of tetrahydrofuran, stir to dissolve it, then add dropwise 6ml of tetrahydrofuran solution containing 0.012g of sodium hydride, at 70°C, Nitrogen protection was used to heat and reflux for 2 hours, and then a solution of 0.123 g of triethoxysilylisocyanate in 6 ml of tetrahydrofuran was added dropwise. Then, it was stirred and reacted at 65° C. under nitrogen protection for 12 h, cooled, and the solvent was distilled off under reduced pressure. The resulting product was washed three times with 12 ml of cyclohexane to obtain a pale yellow oily liquid. Use 16ml of N, N dimethylformamide solvent to dissolve the obtained thienoyl trifluoroacetone bridge molecule, then get the small organic molecule p-nitrostyryl pyridine 0.226g and 0.231g of erbium nitrate dissolved in anhydrous Obtain the ethanol solution of p-nitrostyrylpyridine and the ethanol solution of erbium nitrate in ethanol, under ...

Embodiment 3

[0035] Add 0.077 g of trifluoroacetylacetone into a three-necked flask containing 20 ml of tetrahydrofuran, stir to dissolve it, then add 6 ml of tetrahydrofuran solution containing 0.012 g of sodium hydride dropwise, and heat under nitrogen protection at 70°C Reflux for 2 h, and then add 0.123 g triethoxysilylisocyanopropyl isocyanate dissolved in 6 ml tetrahydrofuran solution dropwise. Then, it was stirred and reacted at 65° C. under nitrogen protection for 12 h, cooled, and the solvent was distilled off under reduced pressure. The resulting product was washed three times with 12 ml of cyclohexane to obtain a pale yellow oily liquid. Dissolve the obtained trifluoroacetylacetonate bridge molecule with 16ml of N,N dimethylformamide solvent, then take 0.226g of small organic molecules and 0.231g of erbium nitrate obtained in step (2) and dissolve them in absolute ethanol to obtain the The ethanol solution of nitrostyrylpyridine and the ethanol solution of erbium nitrate, under...

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Abstract

The invention belongs to the technical field of non-linear hybridized optical materials, in particular relates to a method for preparing a rare-earth beta diketone-base functionalized non-linear optical composite material. The method comprises the following steps of: modifying beta diketone organic molecules respectively by an organic synthesis method to obtain a functionalized molecule bridge and synthesize para-styryl pyridine of organic small molecules; further assembling beta-diketone organic bridge molecules, the organic small molecules and rare-earth ions into a rare-earth coordination complex by coordination bonds; and adding tetraethoxysilane to make the rare-earth coordination complex subjected to co-hydrolytic poly-condensation, and obtaining xerogel by a sol gel method. By the method, the organic molecules having an electronic conjugated system and an electronic transfer structure and the rare-earth ions are connected by coordination reaction, and the rare-earth ions are connected with the organic bridge molecules at the same time, so organic matters, inorganic matters and rare earth are bonded by high covalent bonds and coordination bonds on molecular level, and an optical composite material which is stable in chemical and thermo-mechanic property, regular in surface appearance and non-linear is obtained. The method for preparing the rare-earth beta diketone-base functionalized non-linear optical composite material has the advantages that: experimental conditions are mild; the optical composite material can be directly obtained at room temperature; operability is high; repeatability is good; the quality of the obtained optical composite material is stable; and the appearance is regular.

Description

technical field [0001] The invention belongs to the technical field of preparation of nonlinear optical hybrid materials, and in particular relates to a preparation method of rare earth β-diketone functionalized nonlinear optical composite materials. Background technique [0002] Materials are the material basis of human social life, and the development of materials promotes human material civilization and social progress. With the rapid development of modern science and technology, various new materials suitable for high technology are constantly emerging, and the human demand for advanced functional materials has greatly promoted the research and development of various advanced materials. The rapid development of today's information technology, the transmission, storage, exchange and processing of a large amount of information has promoted the development of new information storage materials. Using optoelectronics or all-photons as carriers to process information and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355
Inventor 闫冰李艳艳
Owner TONGJI UNIV
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