Russian Journal of Applied Chemistry, Год журнала: 2023, Номер 96(10), С. 873 - 888
Опубликована: Окт. 1, 2023
Язык: Английский
Russian Chemical Reviews, Год журнала: 2024, Номер 93(7), С. RCR5125 - RCR5125
Опубликована: Июль 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.
Язык: Английский
Процитировано
41
The Journal of Organic Chemistry, Год журнала: 2023, Номер 88(21), С. 15085 - 15096
Опубликована: Окт. 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.
Язык: Английский
Процитировано
20
Russian Chemical Reviews, Год журнала: 2024, Номер 93(2), С. RCR5109 - RCR5109
Опубликована: Янв. 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.
Язык: Английский
Процитировано
8
Organic Letters, Год журнала: 2025, Номер unknown
Опубликована: Апрель 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.
Язык: Английский
Процитировано
0
Dalton Transactions, Год журнала: 2025, Номер unknown
Опубликована: Янв. 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.
Язык: Английский
Процитировано
0
New Journal of Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
A series of ferrocene-functionalized ionic liquids were synthesized, which exhibited the promising hypergolic property upon contact with 90% H 2 O .
Язык: Английский
Процитировано
0
Russian Chemical Bulletin, Год журнала: 2024, Номер 73(9), С. 2423 - 2532
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
2
Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158859 - 158859
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
2
Journal of Structural Chemistry, Год журнала: 2024, Номер 65(8), С. 1603 - 1611
Опубликована: Авг. 1, 2024
Язык: Английский
Процитировано
1
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown
Опубликована: Сен. 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
Язык: Английский
Процитировано
1