Method for preparing monocrystalline one-dimensional or quasi one-dimensional organic nanomaterial by solution method

A technology of organic nanomaterials and single crystals, applied in the directions of polycrystalline material growth, single crystal growth, single crystal growth, etc., can solve the problems of cumbersome, limited output, and final product damage, and achieve simple preparation process, low cost, single Good dispersion effect

Inactive Publication Date: 2011-05-04
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the classic self-assembly method (J.Am.Chem.Soc.126(2004)5234) can also rely on strong intermolecular interactions to aggregate organic molecules in their bulk solution to form a one-dimensional structure. However, this method It is also only applicable to compounds with specific recognition groups on certain molecular skeletons
In addition, many previously reported methods such as vapor deposition require high temperature and are prone to damage to the final product (Adv.Mater.15(2003), 1361; ), porous alumina hard template method (J.Am.Chem.Soc.124 (2002) 13370) and the soft template method (Angew.Chem.Int.Ed., 42(2003) 2883) of surfactant all need loaded down with trivial details post-treatment process, and each output is also very limited

Method used

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  • Method for preparing monocrystalline one-dimensional or quasi one-dimensional organic nanomaterial by solution method
  • Method for preparing monocrystalline one-dimensional or quasi one-dimensional organic nanomaterial by solution method
  • Method for preparing monocrystalline one-dimensional or quasi one-dimensional organic nanomaterial by solution method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The structural formula of the organic compound used in the present embodiment is as follows:

[0040]

[0041] (1) In a round bottom flask, dissolve the target organic compound in tetrahydrofuran (THF) to a concentration of 1×10 -3 M solution;

[0042] (2) Use a micro-syringe to draw 100 μL of the solution obtained in step (1), drop it dropwise into 5 mL of vigorously stirred secondary pure water, and stir it electromagnetically for about 3 minutes at room temperature, so that the organic molecules are dissolved under the water-repelling force. Nucleation;

[0043] (3) The product obtained in step (2) is left at room temperature to be stable, and the supramolecular interaction force between molecules is used as the driving force to guide the growth of crystal nuclei. After a certain precipitation time, it can be deposited at the bottom of the container. Particles of organic nanomaterials, the scanning electron micrographs of which are shown in figure 1 as shown in...

Embodiment 2

[0045]According to the method of Example 1, the organic nanomaterials of intramolecular charge transfer compounds are prepared, the difference is that the structural formula of the organic matter used in this example is as follows, and the scanning electron micrograph of the obtained organic nanowires is as follows figure 1 as shown in b.

[0046]

Embodiment 3

[0048] According to the method of Example 1, the organic nanomaterials of intramolecular charge transfer compounds are prepared, the difference is that the structural formula of the organic matter used in this example is as follows, and the scanning electron micrograph of the obtained organic nanorods is as follows figure 1 as shown in c.

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Abstract

The invention discloses a method for preparing a monocrystalline one-dimensional or quasi one-dimensional organic nanomaterial. The method comprises the following steps of: 1) dissolving an organic compound in a good solvent to form solution, and mixing the solution and a poor solvent of the organic compound and stirring to obtain a crystal nucleus of the organic compound in the mixed solution, wherein the good solvent and the poor solvent are mutually soluble; and 2) standing and aging the mixed solution containing the crystal nucleus of the organic compound to obtain the monocrystalline one-dimensional or quasi one-dimensional organic nanomaterial. In the method, a simple solvent exchange method is utilized, and a series of organic nanomaterials with various shapes are successfully prepared by combining an exchange solvent nucleation mechanism with a mechanism for guiding crystal nucleus growth under intermolecular super-molecular interaction. The method has the advantages of preparing the nanomaterial on a large scale, along with simple preparation process, low cost and high controllability, so the method is a good method for controllably preparing the monocrystalline organic nanomaterial on a large scale.

Description

technical field [0001] The invention relates to a preparation method of an organic nanometer material, more specifically a method for preparing a single-crystal one-dimensional or quasi-one-dimensional organic nanometer material by a solution method. Background technique [0002] In recent years, due to its unique photoelectric properties, functional diversity and easy tailoring, organic small molecule nanomaterials have attracted more and more people's great interest and become a very active and new frontier research field. The preparation and improvement of optoelectronic devices have established new ideas and methods. The reprecipitation method (J.Am.Chem.Soc.125(2003)6740) has gradually become a simple and effective method for preparing organic nanomaterials. Various organic compounds such as low-molecular-weight aromatic compounds, polydiynes and organic dyes have been successfully prepared into nanomaterials by using the method of different solubility of compounds in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/54C30B29/62C30B7/00
Inventor 张晓宏张秀娟欧雪梅李述汤
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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