Spirofluorenexanthene disubstituted carbazole based organic nanometer material and preparation method thereof

A technology of organic nanomaterials, spirofluorene xanthene, applied in the direction of organic chemical methods, nanotechnology for materials and surface science, nanotechnology, etc., can solve rare problems and achieve simple operation and low cost Effect

Inactive Publication Date: 2018-08-17
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Most currently reported molecules for the preparation of organic micro/nanocrystals have only one main aromatic plane for π-π stacking, while mu

Method used

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  • Spirofluorenexanthene disubstituted carbazole based organic nanometer material and preparation method thereof

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preparation example Construction

[0019] The preparation method of the nanostructure, the specific process is as follows:

[0020] Dissolve the target compound molecule completely in THF (tetrahydrofuran) at a concentration of 0.1-4 mM / mL, take 1 mL of the above solution and quickly inject it into 5 mL of an aqueous solution of surfactant P123 with a concentration of 8 mg / mL. Add magnets and stir rapidly for 5 minutes, and let the prepared mixed solution stand at room temperature for about 13 h. After the nanocrystals grow completely, centrifuge at 12,000 r / min, and wash with ultrapure water for 3 to 4 times. A surfactant completely attached to the crystal surface. The corresponding organic nanometer material can be obtained after centrifugation. Add about 1 mL of deionized water to dilute to obtain an organic nano-ink with a concentration of 0.02-0.07 mg / mL.

Embodiment 1

[0022] Embodiment 1: Nano self-assembly experimental method of SFX-2,7-DCz molecule

[0023] First prepare an aqueous solution of surfactant P123 with a concentration of 8 mg / mL. Prepare a 10 mL sample bottle, put it into the magnet, add 5 mL of 8 mg / mL surfactant P123 aqueous solution, and set aside. We completely dissolved the 0.1~4 mM SFX-2,7-DCz molecule in 1 mL THF (tetrahydrofuran), and under the condition of uniform rotation of the magneton, used a pipette gun to dissolve the THF mixture of the target molecule all at once. Inject into the aqueous solution sample bottle containing surfactant P123, and stir for 4-8 minutes. During this process, white flocs can be seen with the naked eye, and after the stirring is completed, it becomes a milky white liquid. Take out the magnet, let the mixed solution stand at room temperature for about 13 h, centrifuge at 12000 r / min, and wash with ultrapure water for 3 to 4 times until the surfactant is completely removed. Take a drop ...

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Abstract

The invention relates to a spirofluorenexanthene disubstituted carbazole based organic nanometer material and a preparation method thereof. A typical reprecipitation method is utilized to prepare nanocrystals, and control of growth kinetics is realized by regulating a supersaturation degree of a target compound in the crystallization process, so that a series of organic nanometer crystals with uniform size and controllable morphology are produced, and the morphology transformation process of the organic nanometer crystals from two-dimensional rhombic nanosheets to three-dimensional long octahedrons is discovered.

Description

technical field [0001] The present invention relates to an organic nano-material and a preparation method thereof, in particular to an organic nano-crystalline material based on spirofluorene xanthene (SFX) disubstituted carbazole (Cz), that is, SFX-2,7-DCz molecule and its preparation method. The method for regulating preparation and shape belongs to the field of nanotechnology. Background technique [0002] The growth morphology of organic nanocrystals and their size are very important for industrial separation, purification and storage processes; moreover, they all play a crucial role in the development of novel organic semiconductor technologies such as single crystal nanolasers, transistor arrays, sensors and photoconductors. important role. However, due to weak supramolecular interactions, complex kinetic growth mechanisms, and even unclear structure-activity relationships between crystal morphology and molecular configuration, the controllable synthesis of highly sym...

Claims

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Application Information

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IPC IPC(8): C07D405/14B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C07B2200/13C07D405/14
Inventor 解令海戎容黄维汪莎莎蔡一冰
Owner NANJING UNIV OF POSTS & TELECOMM
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