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Oxazole molecule photo-switching fluorescent modulation material

An optical switch and oxazole technology, applied in the field of optical switch fluorescent modulation materials, can solve the problems of difficult signal-to-noise ratio and stability, and achieve the effects of easy preparation, promotion of photoluminescence performance, and strong fluorescence emission

Inactive Publication Date: 2014-12-03
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the molecular-based optical switch fluorescence modulation technology is increasingly showing its attractive application prospects in the fields of optical computing, optical storage, optical sensing, optical communication, and all-optical networks, and has become a research hotspot in recent years. Noise ratio and stability are still two major technical problems

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  • Oxazole molecule photo-switching fluorescent modulation material
  • Oxazole molecule photo-switching fluorescent modulation material
  • Oxazole molecule photo-switching fluorescent modulation material

Examples

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Effect test

Embodiment 1

[0019] 5-(piperidine-1-y1)-2-(1,3,3-trimethylindoline-2-y1)naphtho[1,2-d]oxazole-based optical switch fluorescent modulation material Synthesis of single crystal: Weigh 100 mg of 1,3,3-trimethyl-6-piperidinspiro[indoline-2,3-3H-naphtho[2,1-b][1,4]] Oxazine and 14 milligrams of potassium carbonate were placed in a hydrothermal kettle, and 10 milliliters of ethanol was added in the kettle, then the reaction kettle was heated to 120 degrees Celsius, and the temperature of the reaction system was slowly cooled after two days of heat preservation. colored blocky crystals. A yellow crystal with a size of 0.49mm×0.36mm×0.09mm was selected for X-ray single crystal structure test. The single crystal structure of the compound molecule is shown in the attached figure 1 , and its unit cell packing structure is shown in the attached figure 2 .

Embodiment 2

[0021] 5-(piperidine-1-y1)-2-(1,3,3-trimethylindoline-2-y1)naphtho[1,2-d]oxazole-based optical switch fluorescent modulation material Dissolved in chloroform, the resulting colorless solution can turn blue-purple after being irradiated with a 365nm wavelength ultraviolet lamp, showing photochromic properties, and the color deepens with the prolongation of the illumination time. Such as image 3 As shown, it is the absorption spectrum change of the chloroform solution of the material before and after photochromism. It can be seen very clearly that a strong absorption peak appears in the visible light region with a peak wavelength of 550nm after discoloration. In addition to the photochromic phenomenon that can be caused by ultraviolet light irradiation, the chloroform solution of this material can also show the characteristic photochromic phenomenon under the irradiation of sunlight, so it can be used as a pure photochromic material.

[0022] In addition, the chloroform soluti...

Embodiment 3

[0024] 5-(piperidine-1-y1)-2-(1,3,3-trimethylindoline-2-y1)naphtho[1,2-d]oxazole-based optical switch fluorescent modulation material Dissolved in toluene, the resulting colorless solution can turn blue-purple after being irradiated with a 365nm wavelength ultraviolet lamp, showing photochromic properties, and the color deepens with the prolongation of the illumination time. In addition, as the degree of photochromism changes, it can also show regular changes in fluorescence intensity, that is, it has the performance of optical switch fluorescence modulation.

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Abstract

The invention discloses an oxazole molecule photo-switching fluorescent modulation material 5-(piperidine-1-yl)-2-(1,3,3-trimethylindoline-2-yl)naphtho-[1,2-d]oxazole. According to the invention, the oxazole molecule is a combination of an indole ring and a naphthooxazole ring, the naphthalene ring of the latter is provided with a piperidine substituent group, and the general molecular formula is C27H29N30. After being subjected to ultraviolet irradiation, the oxazole molecule presents typical photochromism, and can be singly used as a photochromic material. Before and after the color change, the oxazole molecule presents distinct photoluminescenece properties, and the corresponding fluorescence emission intensity presents a characteristic of varying with the color change degree. Thus, the oxazole molecule can be used as a photo-switching fluorescent modulation material.

Description

technical field [0001] The invention belongs to the field of organic chemistry and optical functional materials, and relates to photochromic and photoluminescent materials, in particular to an optical switch fluorescent modulation material which has both photochromic and photoluminescent properties, and whose luminous properties can be regulated by the color changing process. technical background [0002] Organic photochromic functional compounds have broad application prospects in optical storage materials, photosensitive / concealment / anti-counterfeiting / decorative materials, photoelectric conversion devices, light regulation of bioactive molecules, photochromic dyes / paints, agricultural mulch films, and color-changing sunglasses. , its unique photochemical stability and fatigue resistance can be used as the basic material of photochromic products. The exploration of new photochromic compounds and the modification and application technology of existing materials have always ...

Claims

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Application Information

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IPC IPC(8): C07D413/04C09K9/02C09K11/06
CPCC07D413/04C09K9/02C09K11/06C09K2211/1029C09K2211/1033
Inventor 柴文祥林坚王聪勇黄佳焰范美强史宏声秦来顺陈达郭驾宇舒康颖
Owner CHINA JILIANG UNIV