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Anhydrous nonmetallic pentazole ion salt and preparation method thereof

A non-metal cation and non-metal technology, applied in the field of non-metal pentazolium ion salts and their preparation, can solve the problems such as non-metallic cations and achieve the effects of simple and efficient process, good thermal stability, and simple and efficient preparation method

Inactive Publication Date: 2019-11-19
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, manganese, iron, cobalt, zinc, and magnesium salt hydrates of pentazolium ions have been reported, but these substances contain crystal water, coordination water, and metal ions in their molecules, and they are not really energetic materials.

Method used

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  • Anhydrous nonmetallic pentazole ion salt and preparation method thereof
  • Anhydrous nonmetallic pentazole ion salt and preparation method thereof
  • Anhydrous nonmetallic pentazole ion salt and preparation method thereof

Examples

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Embodiment 1

[0050] Embodiment 1: 1mmol guanidinourea hydrochloride and 1mmol pentazole sodium hydrate [Na(H 2 O)(N 5 )]·2H 2 O was added to 20 ml of distilled water, dissolved by ultrasonication, stirred at 15°C for 1 h, evaporated to dryness, and recrystallized three times with 75% methanol, and the mother liquor was slowly evaporated to obtain anhydrous pentazoguanidinyl urea crystals with a yield of 70%.

Embodiment 2

[0051] Embodiment 2: 1mmol guanidinourea hydrochloride and 1.2mmol pentazole sodium hydrate [Na(H 2 O)(N 5 )]·2H 2 O was added into 20 ml of distilled water, dissolved by ultrasonication, stirred at 20°C for 3 h, evaporated to dryness, recrystallized 5 times with 85% methanol, and slowly evaporated the mother liquor to obtain anhydrous pentazoguanidinyl urea crystals with a yield of 75%.

Embodiment 3

[0052] Embodiment 3: 1mmol oxalyl hydrazide hydrochloride and 1mmol pentazole sodium hydrate [Na(H2 O)(N 5 )]·2H 2 O was added to 20ml of distilled water, dissolved by ultrasonication, stirred at 25°C for 5.5h, evaporated to dryness, recrystallized 5 times with 95% methanol, and the mother liquor evaporated slowly to obtain anhydrous pentafenoxal hydrazide crystals with a yield of 62%.

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Abstract

The invention discloses an anhydrous nonmetallic pentazole ion salt and a preparation method thereof. A chemical structural formula of the nonmetallic salt is Cat(N5)n. When Cat is positive monovalentnon-metallic ammonium, guanidine, hydrazine, hydroxylamine, guanylurea, or oxalylhydrazine cation, n = 1. When the Cat is positive divalent non-metallic carbohydrazide, 4,4', 5,5'-tetraamino-3,3'-1,2,4-triazole or 6,7-dihydro-bis([1,2,4] triazolo)[1,2,4,5]tetraaza-3,9-diamine(575) cation, n = 2. The anhydrous nonmetallic pentazole ion salt is prepared by using a pentazolium sodium salt hydrate [Na(H2O)(N5)]2H2O and non-metallic cation hydrochloride as raw materials, using water as a solvent and carrying out ultrasonic dissolution, drying and repeated recrystallization with methanol. The process of the invention is simple and efficient. The prepared pentazole ion salt has obvious hydrogen bond interaction and high structural stability and is a high-nitrogen energetic material with good comprehensive performance.

Description

technical field [0001] The invention relates to a class of anhydrous non-metallic pentazolium ion salts and a preparation method thereof, belonging to the technical field of energetic materials. Background technique [0002] High energy density materials refer to a new type of energetic material technology with an energy density 15% to 20% higher than the best standard energetic materials (such as RDX, HMX). Indispensable power and power energy material technology, mainly including high energy density compounds such as CL-20, ammonium dinitramide (ADN), trinitroazetidine (TNAZ), octanitrocubane, and total nitrogen materials Molecular design, synthesis and preparation technology. Pentazolium anion is a kind of all-nitrogen material, and its research has been close to a century. Compared with other all-nitrogen materials, it has aroused widespread interest of researchers because of its better stability. In 2016, Bazanov et al. detected pentazolium ions in tetrahydrofuran so...

Claims

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Application Information

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IPC IPC(8): C07D259/00C07D487/14C07C241/04C07C243/28C07C277/08C07C279/24C06B43/00
CPCC06B43/00C07B2200/13C07D259/00C07D487/14
Inventor 陆明许元刚王鹏程林秋汉
Owner NANJING UNIV OF SCI & TECH
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