Sterically hindered multi-arm oligomeric fluorene organic laser materials and preparation method thereof

A technology of laser materials and oligofluorene, which is applied in the direction of luminescent materials, organic chemistry, chemical instruments and methods, etc., can solve the problems that the laser technology industry has not formed a scale, and achieve the effect of reaction atom economy and simple separation

Inactive Publication Date: 2018-06-08
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, the research on organic lasers has a long history; since Maiman invented the world's first ruby ​​laser in 1960 to the mid-1970s, the laser technology industry has not yet formed a scale

Method used

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  • Sterically hindered multi-arm oligomeric fluorene organic laser materials and preparation method thereof
  • Sterically hindered multi-arm oligomeric fluorene organic laser materials and preparation method thereof
  • Sterically hindered multi-arm oligomeric fluorene organic laser materials and preparation method thereof

Examples

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example 1

[0041] Example 1: Prepared by ① ③

[0042]

[0043] Example implementation 1: preparation of KF (A) and K 2 CO 3 (B) 20-30 mL of each 2-3 mol / L mixed solution is used as lye, the organic phase is toluene and tetrahydrofuran solution, and 10 ml of toluene and tetrahydrofuran are prepared, and the A and B solutions are bubbled for 2-3 hours. Assemble the dried three-neck flask, magnet, and condenser, leaving only the sampling port in the sealed system. Accurately weigh compounds ① (1g, 1.54mmol, 1eq), ② (5.50g, 7.70mmol, 5eq) in the reaction bottle, and ensure that the system is sealed, evacuated 2-3 times, and filled with nitrogen balloon, and then use tin foil Wrapped in paper, protected from light, quickly weighed tetrakistriphenylphosphine palladium (0.36g, 0.31mmol, 0.2eq) in a nitrogen environment, quickly added to the reaction bottle, and repeated the above operations. Inject organic phase A into the reaction vial. 90-100 ℃ oil bath stirring heating reaction, after...

example 2

[0044] Example 2: Prepared by ④ ⑤

[0045]

[0046] Preparation of KF(A) and K 2 CO 3 (B) 20-30 mL of each 2-3 mol / L mixed solution is used as lye, the organic phase is toluene and tetrahydrofuran solution, and 10 ml of toluene and tetrahydrofuran are prepared, and the A and B solutions are bubbled for 2-3 hours. Assemble the dried three-neck flask, magnet, and condenser, leaving only the sampling port in the sealed system. Accurately weigh compound ④ (1g, 1.58mmol, 1eq), ② (5.65g, 7.90mmol, 5eq) in the reaction bottle, and ensure that the system is sealed, vacuumize 2-3 times, and fill with nitrogen balloon, and then use tin foil Wrapped in paper, protected from light, quickly weighed tetrakistriphenylphosphine palladium (0.37g, 0.32mmol, 0.2eq) into the reaction bottle under nitrogen atmosphere, and repeated the above operation. Inject organic phase A into the reaction vial. 90-100 ℃ oil bath stirring heating reaction, after 10min, add 6.2mL of lye. Stir the reaction...

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Abstract

The invention discloses sterically hindered multi-arm oligomeric fluorene organic laser materials and a preparation method thereof. The preparation method comprises that tetrabromo-containing multi-arm oligomeric fluorene as a starting material and multi-arm oligomeric fluorene borate undergo a reaction under conditions: 1, a volume ratio of toluene to tetrahydrofuran of 1: 1, 2, tetra(triphenylphosphine)palladium (II) catalysis and 3, an anhydrous oxygen-free environment to produce a series of sterically hindered multi-arm oligomeric fluorene organic laser materials through Suzuki reaction coupling. The sterically hindered multi-arm oligomeric fluorene organic laser material can be easily dissolved in organic solvents such as toluene, tetrahydrofuran and chloroform and has good solvability, high quantum efficiency, a high laser gain coefficient, a low loss coefficient and a low ASE threshold value. The preparation method has the advantages of easy control of reactions, simple processes, good repeatability and high yield. Therefore, the study of the materials has great advantages and has a good reference for screening high-laser performance materials.

Description

Technical field: [0001] The invention belongs to the fields of fine organic synthesis and preparation of organic semiconductor materials, and specifically relates to the research on the difference in ASE performance of a class of sterically hindered multi-arm oligomeric fluorene materials with different cores and different side chains. Background technique [0002] Nowadays, in the 21st century with the rapid development of science and technology, information technology has become one of the core elements to promote the rapid development of society, and information materials involve many aspects such as display, storage, calculation, and detection. Developing high-performance information materials, realizing device miniaturization, high-density storage, and fast response, and breaking through the current technical bottleneck have become major scientific problems faced by current scientists. Information display technology plays an extremely important role in improving people'...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/96C09K11/06
CPCC07D311/96C09K11/06C09K2211/1088
Inventor 解令海孙思先左宗岩欧昌金夏瑞东黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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