Zobrazeno 1 - 10 of 25 pro vyhledávání: '"Girish M. Gore"'
1
Linear Nitramine (DNDA-57): Synthesis, Scale-Up, Characterization, and Quantitative Estimation by GC/MS
Autor: Girish M. Gore, Nilesh H. Naik, R. Vijayalakshmi, Arun K. Sikder
Publikováno v: Journal of Energetic Materials. 33:1-16
Dinitro-diaza-alkanes (DNDA-57) are linear nitramine plasticizers and find use in low-temperature sensitivity coefficient propellants. DNDA-57 is a mixture of 2,4-dinitro-2,4-diazapentane (DNDA-5), 2,4-dinitro-2,4-diazahexane (DNDA-6), and 3,5-dinitr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b52922773d86a02f9ed25b6f2c55ba0
https://doi.org/10.1080/07370652.2013.853710
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2
A Simple and Environmentally Benign Nitration of Pyrazoles by Impregnated Bismuth Nitrate
Autor: P. Ravi, Arun K. Sikder, Surya P. Tewari, Girish M. Gore
Publikováno v: Journal of Heterocyclic Chemistry. 50:1322-1327
We report herein a facile, rapid, and environmentally friendly synthesis of nitropyrazoles in good yields using silica-bismuth nitrate and silica-sulfuric acid-bismuth nitrate at room temperature for the first time. The relatively non-toxic nature, e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7455fab3363215cb5682449d5e75b872
https://doi.org/10.1002/jhet.1093
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3
Silica–Sulfuric Acid Catalyzed Nitrodeiodination of Iodopyrazoles
Autor: P. Ravi, Arun K. Sikder, Girish M. Gore, Surya P. Tewari
Publikováno v: Synthetic Communications. 42:3463-3471
We report here the synthesis of nitropyrazoles in good to excellent yields from iodopyrazoles over silica–sulfuric acid catalyst for the first time. The present procedure require less acid, offers a simplified workup procedure, and may be applied f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12326ff13f80490f14bc91cd2bea49f3
https://doi.org/10.1080/00397911.2011.584261
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5
DFT study on the structure and explosive properties of nitropyrazoles
Autor: Surya P. Tewari, Arun K. Sikder, Girish M. Gore, P. Ravi
Publikováno v: Molecular Simulation. 38:218-226
Ab initio molecular orbital calculations at the B3LYP/aug-cc-pVDZ level have been carried out to explore the structure, stability, sensitivity and band gap of nitropyrazoles. Kamlet and Jacob equations were used to calculate the detonation velocity a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43babedc1aa24cc33fdb7288873f3792
https://doi.org/10.1080/08927022.2011.614242
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6
Quantum Chemical Studies on the Structure and Performance Properties of 1,3,4,5-Tetranitropyrazole: A Stable New High Energy Density Molecule
Autor: Girish M. Gore, Arun K. Sikder, P. Ravi, Surya P. Tewari
Publikováno v: Propellants, Explosives, Pyrotechnics. 37:52-58
Molecular orbital calculations were performed for the geometric and electronic structures, band gap, thermodynamic properties, density, detonation velocity, detonation pressure, stability and sensitivity of 1,3,4,5-tetranitropyrazole (R23). The calcu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::053e6009ab65be7bd1127768de5b6aef
https://doi.org/10.1002/prep.201000107
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7
Thermal decomposition kinetics of 1-methyl-3,4,5-trinitropyrazole
Autor: Arun K. Sikder, Girish M. Gore, P. Ravi, Surya P. Tewari
Publikováno v: Thermochimica Acta. 528:53-57
Thermal decomposition of 1-methyl-3,4,5-trinitropyrazole (MTNP) has been investigated using TG-DTA technique under nitrogen atmosphere. The compound showed good thermal stability with exothermic decomposition peak at 248 °C on DTA. Kinetic parameter
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::725384dd3102015741286f44a2c54d59
https://doi.org/10.1016/j.tca.2011.11.001
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8
Review on Melt Cast Explosives
Autor: Girish M. Gore, Dilip M. Badgujar, Arun K. Sikder, Surya P. Tewari, P. Ravi
Publikováno v: Propellants, Explosives, Pyrotechnics. 36:393-403
A systematic overview of melt cast explosives is given. The research on melt cast explosives over several decades can be divided into three broad areas: (i) aromatic compounds with CCH3, NCH3, OCH3 CNO2, NNO2 and ONO2 groups, (ii) improved synthesis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3adf94c5a6c819cee5401f8e0869d644
https://doi.org/10.1002/prep.201100047
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9
A DFT study on the structure-property relationship of aminonitropyrazole-2-oxides
Autor: Surya P. Tewari, P. Ravi, Girish M. Gore, Arun K. Sikder
Publikováno v: International Journal of Quantum Chemistry. 112:1667-1677
Density functional theory (DFT) calculations at the B3LYP/aug-cc-pVDZ level have been carried out to study the geometry and electronic structures, stability, sensitivity and band gap of the possible isomers of aminonitropyrazole-2-oxides. Kamlet-Jaco
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c84093f02ea8099f927f983ea019220
https://doi.org/10.1002/qua.23150
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10
Studies on an Improved Plastic Bonded Explosive (PBX) for Shaped Charges
Autor: Samson S. Samudre, S. N. Asthana, Arun K. Sikder, Girish M. Gore, Ushadevi R. Nair, R. K. Sinha
Publikováno v: Propellants, Explosives, Pyrotechnics. 34:145-150
This paper reports the characteristics and performance evaluation of a pressed plastic bonded explosive (PBX) composition based on hexanitrohexaazaisowurtzitane (HNIW, CL-20) and polyurethane (PU) in comparison with PU-coated cyclotetramethylene tetr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ab6afab04df0d8870fb9da2a9c90afe
https://doi.org/10.1002/prep.200800036
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