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Metallofullerene derivatives and their preparation methods, control methods and applications of paramagnetic properties

A technology of metallofullerene and derivatives, applied in metallofullerene derivatives and their preparation, application of metallofullerene derivatives as molecular optical function switches, regulation of paramagnetic properties of metallofullerene derivatives field, it can solve the problems of low sensitivity, complex operation, and one-way change of control mode signal, and achieve the effect of high sensitivity, simple operation, and low cost

Active Publication Date: 2019-05-24
赤峰福纳康生物技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the existing technical problems of low sensitivity, complex operation, and unidirectional change of the signal of the regulation mode existing in regulating the paramagnetic properties of metallofullerenes by means of cooling or chemical modification, the present invention provides a simple, efficient, novel structure Metallofullerene derivatives that can sensitively adjust the paramagnetic properties of metallofullerenes and their preparation methods, using the characteristics of azobenzene photoisomerization to change the distance between the two spin centers to regulate the paramagnetic properties of metallofullerenes

Method used

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  • Metallofullerene derivatives and their preparation methods, control methods and applications of paramagnetic properties
  • Metallofullerene derivatives and their preparation methods, control methods and applications of paramagnetic properties
  • Metallofullerene derivatives and their preparation methods, control methods and applications of paramagnetic properties

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Effect test

Embodiment 1

[0047] Metallofullerene Sc 3 N@C 80 The preparation method of derivatives, the process includes:

[0048] (1) Metallofullerene Sc 3 N@C 80 The preparation method of Sc 3 N@C 80 Molecules were produced by the arc discharge method in a DC arc discharge furnace ( -Huffman method) synthesis, the specific process includes: first drill a solid graphite rod with an outer diameter of 8mm into a hollow graphite tube with an inner diameter of about 6mm, and then drill the ScNi 2 The alloy and graphite powder are mixed uniformly in a mass ratio of 3:1, then filled into the graphite tube and compacted; the filled metal / graphite rod is installed on the anode of the electric arc furnace and fixed, the furnace cover is closed, and the vacuum pump is turned on; The valve between the furnace chamber and the vacuum pump is used to evacuate the arc furnace. When the air pressure is lower than 10Pa, turn on the cooling circulating water, turn on the electric welding machine, adjust the cur...

Embodiment 2

[0057] Metallofullerene Sc 3 C 2 @C 80 The preparation method of derivatives, the steps are as follows:

[0058] (1) Metallofullerene Sc 3 C 2 @C 80 The preparation method of Sc 3 C 2 @C 80 Molecules were produced by the arc discharge method in a DC arc discharge furnace ( -Huffman method) synthesis, the specific process includes: first drill a solid graphite rod with an outer diameter of 8mm into a hollow graphite tube with an inner diameter of about 6mm, and then drill the ScNi 2The alloy and graphite powder are mixed uniformly in a mass ratio of 3:1, then filled into the graphite tube and compacted; the filled metal / graphite rod is installed on the anode of the electric arc furnace and fixed, the furnace cover is closed, and the vacuum pump is turned on; The valve between the furnace chamber and the vacuum pump is used to evacuate the arc furnace. When the air pressure is lower than 10Pa, turn on the cooling circulating water, turn on the electric welding machine,...

Embodiment 3

[0064] Detection process of photoexcited electron transfer paramagnetic signal

[0065] (1) Metallofullerene Sc 3 N@C 80 The method for detecting electron paramagnetic resonance spectral properties of derivatives includes: dissolving a sample of about 0.5 mg in 1 mL of toluene solution, placing the solution in a plugged quartz tube, and then testing the electron paramagnetic signal (ESR) properties of the sample. First, use UV light for a period of time to detect metallofullerene Sc every four minutes. 3 N@C 80 The ESR signal of the derivative was then illuminated with visible light to detect changes in the ESR signal.

[0066] Depend on figure 2 It can be seen that the metallofullerene Sc 3 N@C 80 There is no paramagnetic signal itself, and three characteristic lines appear after the external nitroxide free radical small molecule. Under the condition of ultraviolet light, intramolecular electron transfer occurs, which leads to the decrease of ESR signal (after 4 minut...

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Abstract

The invention discloses a metal fullerene derivative and a preparation method thereof as well as a paramagnetic property regulation method and application thereof. The metal fullerene derivative is a type of metal fullerene derivative obtained by carrying out addition reaction and modifying azobenzene nitrogen oxygen free radical micromolecules on the surface of the paramagnetic metal fullerene. Different light irradiates the metal fullerene derivative; the paramagnetic property of the metal fullerene can be regulated through the change of relative positions between the metal fullerene and the nitrogen oxygen free radical molecule dual-spinning centers; the metal fullerene derivative provided by the invention is novel in structure, has photoswitch property and is capable of simply, conveniently, efficiently and sensitively regulating the paramagnetic property of the metal fullerene; the technical problems of low sensitivity, complex operation and one-way change of signals of regulation manner in the existing temperature reduction or chemical modification manner for regulating the paramagnetic property of the metal fullerene can be solved; the metal fullerene derivative can be used as a molecular light function switch and can be applied to all optical networks and optical switching.

Description

technical field [0001] The invention relates to the technical field of molecular optical function switches, in particular to metallofullerene derivatives and a preparation method thereof, as well as a method for regulating the paramagnetic properties of metallofullerene derivatives and the use of metallofullerene derivatives as molecular light functions switch application. Background technique [0002] Metallofullerenes are mainly divided into two types: paramagnetic and diamagnetic, which are distinguished by whether they have a single spin electron. Putting metals or clusters into metallofullerenes constitutes an endo-metallofullerene, so that the internal groups are separated from the external environment, and even highly reactive groups can exist stably inside. This makes the intercalated metallofullerenes stable at room temperature and have a long spin coherence consistency time, which has a wide range of applications in quantum computing and communication. Since the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/156
Inventor 王春儒吴波
Owner 赤峰福纳康生物技术有限公司
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