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Diisopropyl propylamine tetrafluoroborate crystal material as well as preparation method and application thereof

A technology of diisopropylpropylamine tetrafluoroborate and diisopropylpropylamine cation, which is applied in the field of organic-inorganic hybrid materials, can solve the problems of difficult practical application of materials and location in low temperature areas, and achieve easy operation and excellent performance , the effect of facilitating industrialization

Active Publication Date: 2021-06-18
JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the ferroelectric properties of ammonium salt organic-inorganic hybrid crystalline ferroelectric materials discovered so far are located in the low temperature region, which brings great difficulties to the practical application of materials.

Method used

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  • Diisopropyl propylamine tetrafluoroborate crystal material as well as preparation method and application thereof
  • Diisopropyl propylamine tetrafluoroborate crystal material as well as preparation method and application thereof
  • Diisopropyl propylamine tetrafluoroborate crystal material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 20.2g (0.2mol) of diisopropylamine, dissolve it in 40mL of acetonitrile, weigh 12.2g (0.1mol) of 1-bromopropane, dissolve it in 30mL of acetonitrile, mix the two solutions, reflux and stir at 73°C for 72 hours, gradually white solid generate. After cooling to room temperature, 50 mL of distilled water was added, and the reaction solution was divided into two layers. Use a separatory funnel to separate the upper layer liquid, wash twice with 30 mL of distilled water, and obtain 11.3 g of a colorless transparent liquid, which is the crude product of diisopropylpropylamine, with a yield of 79%. The yield of the agent is increased by nearly 9 times (compared with Comparative Example 1), and the ammonium salt generated is separated from the reaction system as a precipitate, which can be collected by simple filtration and is easy to recycle. This method is more suitable for production.

Embodiment 2

[0045] Weigh diisopropylpropylamine (1.43g, 10 mmol), dissolve in 20 mL of ethanol, add HBF dropwise under stirring 4 The solution was about 2 mL to weakly acidic (pH≈6), let it stand for a few minutes, filtered, the filtrate evaporated, and colorless needle-like crystals precipitated after about two days.

Embodiment 3

[0047]Take the powder sample of the compound diisopropylpropylamine tetrafluoroborate crystal and press it into a sheet with a thickness of about 0.6mm, and make an electrode with an electrode holder, copper wire, and carbon conductive adhesive, and measure the area covered by the carbon conductive adhesive on the electrode and The thickness of the electrode is then placed on a dielectric measuring instrument to measure the data of the dielectric constant corresponding to the temperature change; the nonlinear optical effect test uses a Nd with a wavelength of 1064 nm: YAG pulsed laser beam; the differential scanning volume is performed on the Rigaku DSC8230 instrument Thermal measurements were performed under a nitrogen atmosphere at a heating or cooling rate of 10 K / min in an aluminum crucible; the crystal structure was resolved by the direct method, and the olex2. 2 The full matrix method refinement.

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Abstract

The invention discloses a diisopropyl propylamine tetrafluoroborate crystal material as well as a preparation method and application thereof, and belongs to the field of organic and inorganic hybrid materials. The crystal material is crystallized in a Pna21 ferroelectric space group at room temperature and has two times of reversible phase change near 323.5K and 404K, and the heat absorption capacities measured by differential calorimetric scanning are 40.375 J / g and 11.014 J / g respectively. In addition, the crystal structure is simple in preparation process, has good thermal stability and hydrophilic and oleophylic properties, can be produced on a large scale, and can be used as an amphiphilic room-temperature ferroelectric material with low cost and a clear structure.

Description

technical field [0001] The invention belongs to the field of organic-inorganic hybrid materials. More specifically, it relates to the organic synthesis of diisopropylpropylamine, the preparation of diisopropylpropylamine tetrafluoroborate, its crystal structure, and its application. Background technique [0002] Ferroelectric materials are an important class of electronic functional materials with wide application and good performance. Because of their ferroelectric switching effect, pyroelectric effect, photocurrent effect, piezoelectric effect, acousto-optic effect, Refractive effect and other characteristics, so it can be used to develop non-volatile ferroelectric memory, ferroelectric optical memory, infrared detector, optical waveguide device, spatial light modulator, capacitor, surface acoustic wave device, micro drive and laser frequency doubler, etc. functional devices. Ferroelectric materials have spontaneous polarization, and the spontaneous polarization has two ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/54C30B7/14
CPCC30B29/54C30B7/14
Inventor 王文祥孙悦聂景
Owner JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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