Two-dimensional Fe(II) complex pressure-caused spin conversion materials, preparation method and application thereof

A technology of spin conversion and complexes, applied in the direction of iron organic compounds, etc., to achieve the effect of good application prospects

Inactive Publication Date: 2010-05-26
NANKAI UNIV
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Such research could eventually make possible a "quantum leap" in the miniaturization of compute

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  • Two-dimensional Fe(II) complex pressure-caused spin conversion materials, preparation method and application thereof
  • Two-dimensional Fe(II) complex pressure-caused spin conversion materials, preparation method and application thereof
  • Two-dimensional Fe(II) complex pressure-caused spin conversion materials, preparation method and application thereof

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Embodiment Construction

[0025] Table 1 shows the crystallographic data of the pressure-induced spin-transition complexes disclosed in the present invention.

[0026] The crystal structure of the complex belongs to the monoclinic system, the space group is P2(1) / c, and the unit cell parameters of the complex are: α=90°, β=99.50(3)°, γ=90°. Fe 2+ The coordination number of the ion is 6, and the coordination environment is as follows figure 1 As shown, an octahedral configuration is formed. The packing structure of the complex molecules is a two-dimensional structure ( figure 2 ).

[0027] In the preparation method of the present invention: the iron compound used is ferrous fluoroborate hexahydrate. The molar ratio of said divalent iron ion, thiocyanate ion and ligand L can be 1:2:2-2.5.

[0028] Mainly comprise the following steps in the preparation method of the present invention:

[0029] 1) Weigh ferrous fluoroborate hexahydrate and potassium thiocyanate into a round bottom flask at a...

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Abstract

The invention provides two-dimensional Fe(II) complex pressure-caused spin conversion materials, a preparation method and application thereof. The invention relates to the field of spin conversion materials science, in particular to pressure-caused spin conversion materials, a preparation method and application thereof. The chemical formula of the two-dimensional Fe(II) complex pressure-caused spin conversion materials is [Fe(L)2(SCN)2]n, wherein L is 1,3-Bis (1H-1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene ligand. The preparation method chooses L as the ligand to synthesize the two-dimensional Fe(II) complex pressure-caused spin conversion materials. The materials are free from the phenomenon of spin conversion under normal pressure; the results of temperature-change magnetic susceptibility show that antiferromagnetic interaction exists between Fe and Fe; and after pressure is increased, the results of temperature-change magnetic susceptibility show that the phenomenon of spin conversion appears, and the temperature of spin conversion changes from low to high with the increase in pressure, so the temperature of spin conversion can be regulated by regulating external pressure. Therefore, the materials have good application prospects in the fields of nanometer devices, molecular memory, molecular switches and molecule display, as well as industry.

Description

technical field [0001] The invention relates to the scientific field of spin conversion materials, in particular to a pressure-induced spin conversion material and its preparation method and application. Background technique [0002] The study of molecular materials is the most attractive frontier topic in recent years. Internationally advanced countries such as the United States, Britain, Germany, and France all included this research in their high-tech development plans. In 1995, Japan also identified molecular materials as one of the seven subjects of basic science pilot research and gave them key funding. . Molecular materials refer to substances assembled from molecular units. This structural feature makes it possible for us to prepare macroscopic substances with specific functional properties by selecting appropriate molecules and different assembly methods. This kind of complex has the characteristics of both inorganic compounds and organic compounds. Due to the co...

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Application Information

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IPC IPC(8): C07F15/02
Inventor 程鹏陈垚师唯张静静郭秋婷
Owner NANKAI UNIV
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