Hypergolic Propellants Based on High-Test Hydrogen Peroxide and Organic Compounds DOI

Sh. L. Guseinov,

S. G. Fedorov,

V. A. Kosykh

et al.

Russian Journal of Applied Chemistry, Journal Year: 2023, Volume and Issue: 96(10), P. 873 - 888

Published: Oct. 1, 2023

Language: Английский

The chemistry of heterocycles in the 21st century DOI
Valery N. Charushin, Egor V. Verbitskiy, О. Н. Чупахин

et al.

Russian Chemical Reviews, Journal Year: 2024, Volume and Issue: 93(7), P. RCR5125 - RCR5125

Published: July 1, 2024

The chemistry of heterocyclic compounds has traditionally been and remains a bright area chemical science in Russia. This is due to the fact that many heterocycles find widest application. These are key structural fragments most drugs, plant protection agents. Many natural also derivatives heterocycles. At present, more than half hundreds millions known collective review devoted achievements Russian chemists this field over last 15–20 years. presents leading heterocyclists representing both RAS institutes university science. It worth noting wide scope review, terms geography author teams, covering whole our large country, diversity research areas. Practically all major types represented review. special attention focused on practical applications design new drugs biologically active compounds, high-energy molecules, materials for organic electronics photovoltaics, ligands coordination chemistry, other rapidly developing advances would not be possible without development fundamental transformations chemistry.<br> Bibliography — 2237 references.

Language: Английский

Citations

37
Controlling the Energetic Properties of N-Methylene-C-Linked 4-Hydroxy-3,5-dinitropyrazole- and Tetrazole-Based Compounds via a Selective Mono- and Dicationic Salt Formation Strategy DOI
Prachi Bhatia, Krishna Pandey,

Badal Avasthi

et al.

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(21), P. 15085 - 15096

Published: Oct. 17, 2023

In the quest to synthesize high-performing insensitive high-energy density materials (HEDMs), main challenge is establishing an equilibrium between energy and stability. For this purpose, we explored 4-hydroxy-3,5-dinitropyrazole- tetrazole-based energetic scaffolds connected via a N-methylene-C bridge. The hydroxy functionality nitro groups on pyrazole ring promotes physical stability inter- intramolecular hydrogen bonding contributes oxygen balance, supporting better performance. Due two acidic sites (OH NH) with different reactivities, series of monocationic dicationic salts were synthesized, their overall performance was compared. All compounds synthesized in study have high impact sensitivity >40 J friction >360 N. Monocationic generally found thermal respect corresponding salts, which showed salt formation strategy effectively improved 2 (Td = 168 °C), where most decomposition temperatures higher than 220 °C. characterized through IR, multinuclear NMR spectroscopy, high-resolution mass spectrometry (HRMS), elemental analysis. structure-property relationship studied using Hirshfeld surface analysis, noncovalent interaction (NCI) electrostatic potential studies.

Language: Английский

Citations

20
Energetic 1,2,4-oxadiazoles: synthesis and properties DOI
Alexander V. Shaferov, Леонид Л. Ферштат

Russian Chemical Reviews, Journal Year: 2024, Volume and Issue: 93(2), P. RCR5109 - RCR5109

Published: Jan. 16, 2024

The study of high-energy materials based on poly nitrogen- and nitrogen-oxygen-containing heterocycles is one the most important relevant modern interdisciplinary research areas at intersection organic physical chemistry science. Among such heterocycles, 1,2,4-oxadiazole ring a rather interesting building block for synthesis new energetic compounds. Although 1,2,4-oxadiazoles has been developed more than 100 years, these have only recently become known are currently "hot spots" in this field This review systematizes published methods features reactivity 1,2,4-oxadiazole-based Mono- bis(1,2,4-oxadiazoles) as well structures containing other azoles pyrazole, 1,2,5-oxadiazole, 1,3,4-oxadiazole, 1,2,3-triazole, 1,2,4-triazole tetrazole considered. For series structurally similar compounds, their physicochemical properties summarized factors affecting particular parameter discussed.<br> Bibliography — 123 references.

Language: Английский

Citations

8
Synthesis of 4-Nitroisoxazole-Based Energetic Materials DOI
Alexey A. Konnov,

Anton D. Lisyutkin,

Д. Б. Виноградов

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

A set of novel biheterocyclic energetic materials incorporating the 4-nitroisoxazole scaffold was synthesized. Thus, prepared species demonstrated excellent thermal stability (181–244 °C), good densities (1.71–1.74 g·cm–3), and detonation velocities (7.6–8.3 km s–1), while retaining insensitivity to friction. To best our knowledge, this is first example an incorporation into structure high-energy materials.

Language: Английский

Citations

0
Exploring the energetic potential of 2,5-disubstituted tetrazoles: a case of 2,5-bis(oxadiazolyl)tetrazoles DOI
Vera A. Sereda,

Ekaterina V. Dubasova,

Ivan V. Ananyev

et al.

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The preparation of new energetic materials comprising the poorly explored 2,5-disubstituted tetrazole scaffold as a central structural motif coupled with oxadiazole rings is reported.

Language: Английский

Citations

0
Ferrocene-functionalized room-temperature ionic liquids as green bipropellant hypergolic fuels DOI

Haichao Fang,

Mingren Fan,

Siwei Song

et al.

New Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A series of ferrocene-functionalized ionic liquids were synthesized, which exhibited the promising hypergolic property upon contact with 90% H 2 O .

Language: Английский

Citations

0
Current trends in organic chemistry: contribution of the N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences DOI
Mikhail P. Egorov, Valentine P. Ananikov, E. G. Baskir

et al.

Russian Chemical Bulletin, Journal Year: 2024, Volume and Issue: 73(9), P. 2423 - 2532

Published: Sept. 1, 2024

Language: Английский

Citations

2
Energetic azine N-oxides: State-of-the-art achievements in the synthesis and performance DOI
Dmitry B. Vinogradov, Леонид Л. Ферштат

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158859 - 158859

Published: Dec. 1, 2024

Language: Английский

Citations

2
Equilibrium Molecular Structure of 3-Cyano-4-Amino-1,2,5-Oxadiazole-2-Oxide in the Gas Phase DOI
N. V. Lobanov, Anatolii N. Rykov,

A. V. Stepanova

et al.

Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: 65(8), P. 1603 - 1611

Published: Aug. 1, 2024

Language: Английский

Citations

1
First Alliance of Pyrazole and Furoxan Leading to High-Performance Energetic Materials DOI

T. E. Khoranyan,

Alexander А. Larin, Kyrill Yu. Suponitsky

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Nitrogen heterocyclic scaffolds retain their leading position as valuable building blocks in material science, particularly for the design of small-molecule energetic materials. However, search more balanced combinations directly linked cores is far from being exhausted and aims to reach ideally high-energy substances. Herein, we present synthetic route novel pyrazole-furoxan framework enriched with nitro groups demonstrate a promising set properties, viz., good thermal stability, acceptable mechanical sensitivity, high detonation performance. In-depth crystal analysis showed that isomers having lower-impact sensitivity values both types regioisomeric pairs are those exocyclic furoxan oxygen atom closer pyrazole ring. Owing favorable combination densities (1.83-1.93 g cm

Language: Английский

Citations

0