Two-dimensional energetic CMOFs material containing nitro nitrogen-rich heterocyclic anions and preparation method of two-dimensional energetic CMOFs material

A nitro-nitrogen-enriched, anion-rich technology, applied in the fields of nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, organic chemical methods, organic chemistry, etc., can solve the problem of balanced anions in the skeleton, and achieve high detonation Effects of heat, high density, high nitrogen and oxygen content

Active Publication Date: 2021-03-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the inventors tried to mix the 5-nitrotetrazole ammonium salt solution with the inorganic copper salt solution, 5-nitrotetrazole copper precipitates were formed immediately, because the nitrogen-rich heterocyclic anion contains man

Method used

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  • Two-dimensional energetic CMOFs material containing nitro nitrogen-rich heterocyclic anions and preparation method of two-dimensional energetic CMOFs material
  • Two-dimensional energetic CMOFs material containing nitro nitrogen-rich heterocyclic anions and preparation method of two-dimensional energetic CMOFs material
  • Two-dimensional energetic CMOFs material containing nitro nitrogen-rich heterocyclic anions and preparation method of two-dimensional energetic CMOFs material

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Experimental program
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Effect test

Embodiment 1

[0063] (1) Add 1.5mmol of ATRZ (0.246g) to 10mL of H 2 O, heated to 65°C, stirred until completely dissolved to obtain ATRZ solution;

[0064] (2) 1 mmol of nitrogen-rich heterocyclic anion salt NTTA (0.133 g) with nitro group was added to 5 mL of H 2 O, heated to 65°C, stirred until completely dissolved to obtain NTTA solution;

[0065] (3) 1.5mmol of inorganic metal salt Cu(BF 4 ) 2 ·6H 2 O (0.517g) was added to 5mL of H 2 In O, dissolved to obtain Cu(BF 4 ) 2 solution;

[0066] (4) Add NTTA solution dropwise to ATRZ solution first, then add Cu(BF 4 ) 2 solution, stirred at 25°C for 0.5h, after stirring, filtered, collected the filtrate, stood at room temperature for 3 days until the blue crystals were completely precipitated, filtered with suction, washed the crystals with water 3 times, and dried in vacuum at 65°C for 6h to obtain a compound containing A two-dimensional energetic CMOFs material (MOF(Cu-NTT)) of nitro-nitrogen-rich heterocyclic anions; the yield i...

Embodiment 2

[0068] (1) Add 1.5mmol of ATRZ (0.246g) to 10mL of H 2 O, heated to 65°C, stirred until completely dissolved to obtain ATRZ solution;

[0069] (2) 1 mmol of nitrogen-rich heterocyclic anion salt DNTA (0.176 g) with nitro group was added to 5 mL of H 2 O, heated to 65°C, stirred until completely dissolved to obtain DNTA solution;

[0070] (3) 1.5mmol of inorganic metal salt Cu(NO 3 ) 2 ·3H 2 O (0.360g) was added to 5mL of H 2 In O, dissolved to obtain Cu(NO 3 ) 2 solution;

[0071] (4) Add DNTA solution dropwise to ATRZ solution first, then add Cu(NO 3 ) 2 solution, stirred at 25°C for 0.5h, after stirring, filtered, collected the filtrate, stood at room temperature for 3 days until the blue crystals were completely precipitated, filtered with suction, washed the crystals with water 3 times, and dried in vacuum at 65°C for 6h to obtain a compound containing A two-dimensional energetic CMOFs material (MOF(Cu-DNT)) of nitro-nitrogen-rich heterocyclic anions; the yield i...

Embodiment 3

[0073] (1) Add 1.5mmol of ATRZ (0.246g) to 10mL of H 2 O, heated to 65°C, stirred until completely dissolved to obtain ATRZ solution;

[0074] (2) 1 mmol of nitrogen-rich heterocyclic anion salt TNPA (0.220 g) with nitro group was added to 5 mL of H 2 O, heated to 65 ° C, stirred until completely dissolved to obtain TNPA solution;

[0075] (3) 1.5mmol of inorganic metal salt CuSO 4 ·5H 2 O (0.375g) was added to 5mL of H 2 O, dissolved to obtain CuSO 4 solution;

[0076] (4) Add TNPA solution dropwise to ATRZ solution first, then add CuSO dropwise 4 solution, stirred at 25°C for 0.5h, after stirring, filtered, collected the filtrate, stood at room temperature for 5 days until the purple crystals were completely precipitated, filtered with suction, washed the crystals with water 3 times, and dried in vacuum at 60°C for 8h to obtain a nitrate-containing A two-dimensional energetic CMOFs material (MOF(Cu-TNP)) based on nitrogen-rich heterocyclic anions; the yield is 71.34%; t...

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Abstract

The invention relates to a two-dimensional energetic CMOFs material containing nitro nitrogen-rich heterocyclic anions and a preparation method of the two-dimensional energetic CMOFs material, and belongs to the field of energetic materials. The material is composed of coordination metal cations, neutral organic ligands and skeleton balance anions, the coordination metal cations are transition metal copper ions, cobalt ions, zinc ions or iron ions, the neutral organic ligands are ATRZ, and the skeleton balance anions are nitrogen-rich heterocyclic energetic anions with 1-3 nitro groups. The material is obtained by mixing and reacting a neutral energetic organic ligand ATRZ, nitrogen-rich heterocyclic anion salt and inorganic metal salt. The energetic CMOFs material has higher density, higher nitrogen and oxygen content and higher detonation heat.

Description

technical field [0001] The invention relates to a two-dimensional energetic CMOFs material containing nitro-nitrogen-rich heterocyclic anions and a preparation method thereof, belonging to the field of energetic materials. Background technique [0002] Cationic metal-organic frameworks (CMOFs) have attracted much attention due to their potential applications in anion exchange and separation, catalysis, drug delivery, magnetism, electrical conductivity, and energetic materials. From the chemical structure point of view, CMOFs can be divided into three parts: coordination metal cations, neutral organic ligands and framework balance anions. Traditionally, the structure and properties of CMOFs are mainly tuned by selecting a large number of metal ions or organic ligands. Recently, some reports have shown that changing the counter anion in the framework can also tune its properties. However, the types of anions that can be used as counter anions are limited, and most of these a...

Claims

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Application Information

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IPC IPC(8): C08G83/00C07D231/16C07D231/38C07D249/14C07D257/06C06B25/34
CPCC08G83/008C07D231/38C07D231/16C07D249/14C07D257/06C06B25/34C07B2200/13
Inventor 李生华彭盼盼庞思平丁宁李亚琼
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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