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    Wyświetlanie 1-5 z 5
    Tytuł:
    Preparation and Characterization of 1-(5-Azido-1H-1,2,4-triazol-3-yl)tetrazole
    Autorzy:
    Izsák, D.
    Klapötke, T. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/358367.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    energetic materials
    heterocycles
    triazoles
    tetrazoles
    azides
    Opis:
    This study presents the preparation of 1-(5-azido-1H-1,2,4-triazol-3yl)tetrazole (5) from commercially available chemicals in a five step synthesis. The energetic title compound was comprehensively characterized by various means, including vibrational (IR, Raman) and multinuclear (1H, 13C, 14N, 15N) NMR spectroscopy, mass spectrometry and differential scanning calorimetry. The sensitivities towards various outer stimuli (impact, friction) were determined according to BAM standards. The enthalpy of formation was calculated at the CBS-4M level of theory.
    Źródło:
    Central European Journal of Energetic Materials; 2015, 12, 3; 403-416
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanoscale Aluminum - Metal Oxide (Thermite) Reactions for Application in Energetic Materials
    Autorzy:
    Piercey, D. G.
    Klapötke, T. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/358693.pdf
    Data publikacji:
    2010
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    nano-aluminum
    materials
    thermites
    energetic materials
    Opis:
    Energetic materials fnd use in both military and civilian applications, however many commonly used materials suffer from serious defciencies including toxicity and high sensitivity. Nanothermites exhibit vastly differing characteristics compared to their well known micron scale relatives and through the use of various preparatory chemical techniques can be tailored to have a wide spectra of chemical and energetic properties. This may allow use as superior replacements of conventional energetic materials in various applications.
    Źródło:
    Central European Journal of Energetic Materials; 2010, 7, 2; 115-129
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    5,5'-Dinitrimino-3,3'-methylene-1H-1,2,4-bistriazole - a Metal Free Primary Explosive Combining Excellent Thermal Stability and High Performance
    Autorzy:
    Dippold, A. A.
    Feller, M.
    Klapötke, T. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/358456.pdf
    Data publikacji:
    2011
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    energetic materials
    triazoles
    detonation parameter
    sensitivities
    Opis:
    The synthesis of 5,5´-dinitrimino-3,3'-methylene-1H-1,2,4-triazole (1) and selected nitrogen rich salts are presented. All compounds were fully characterized in terms of sensitivity and energetic properties. Besides a chemical characterization including multinuclear magnetic resonance study (1H, 13C, 14N) and vibrational analysis (IR, Raman), X-Ray diffraction was performed. Thermal stability was determined using differential scanning calorimetry. Detonation parameters were calculated using the EXPLO5.4 code based on CBS-4M computed heats of formation. The presented compound 5,5´-dinitrimino-3,3´-methylene- 1H-1,2,4-bistriazole shows excellent thermal stabilities in combination with high sensitivities and therefore is of interest for possible applications as metal free primary.
    Źródło:
    Central European Journal of Energetic Materials; 2011, 8, 4; 261-278
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Highly Energetic Salts of 3,6-Bishydrazino-1,2,4,5-tetrazine
    Autorzy:
    Klapötke, T. M.
    Preimesser, A.
    Schedlbauer, S.
    Stierstorfer, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/358026.pdf
    Data publikacji:
    2013
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    1,2,4,5-tetrazine
    energetic materials
    explosives
    sensitivities
    crystal structures
    Opis:
    3,6-Bishydrazino-1,2,4,5-tetrazine was synthesized as described by hydrazinolysis of 3,6-bis-(3,5-dimethylpyrazolyl)-1,2,4,5-tetrazine. Doubly protonated 1:1 and 1:2 salts of the highly energetic anions were synthesized. These are bishydrazinium-tetrazine dichloride dihydrate (1:2) (BHT-2HCl•2H2O) (2), bishydrazinium-tetrazine (5,5´-azotetrazolate) dihydrate (1:1) (BHT-ATz•2H2O) (3), bishydrazinium-tetrazine bis (3,5-dinitrotriazolate) dihydrate (1:2) (BHT(DNT)2•2H2O) (4), bishydrazinium-tetrazine bis (5-nitrotetrazolate) (1:2) (BHT(NT)2) (5), bishydrazinium-tetrazine (5,5´-bistetrazolate) dihydrate (1:1) (BHTBT•2H2O) (6), bishydrazinium-tetrazine bistetrazolylamine (1:1) (BHT-BTA) (7), bishydrazinium-tetrazine bis (3-amino-5-nitrotriazolate) (1:2) (BHT-(ANTA)2) (8) and bishydrazinium-tetrazine 4,4´,5,5´-tetranitro-2,2´-bisimidazolate (1:1) (9). Compounds 2-6 could be characterized by low temperature X-ray diffraction. All of the compounds were suffciently analyzed by 1H and {1H}13C and 14N NMR spectroscopy, elemental analysis (CHN), mass spectroscopy (FAB)) and vibrational spectroscopy (IR and Raman). The detonation parameters of the most promising candidates 5 and 9 in terms of energetic applications were calculated using the EXPLO5 V5.05 computer code. The energies of formation were calculated using CBS-4M electronic enthalpies and the atomization method. Furthermore, since all of the compounds are energetic materials, sensitivity tests towards impact (IS), friction (FS) and electrostatical discharge (ESD) were carried out. In addition their thermal stabilities were determined using a differential scanning calorimeter with a heating rate of 5 °C min-1.
    Źródło:
    Central European Journal of Energetic Materials; 2013, 10, 2; 151-170
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrazinium 5-Aminotetrazolate: an Insensitive Energetic Material Containing 83.72% Nitrogen
    Autorzy:
    Fischer, N.
    Klapötke, T. M.
    Scheutzow, S.
    Stierstorfer, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/358539.pdf
    Data publikacji:
    2008
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    hydrazines
    tetrazoles
    crystal structure
    energetic materials
    sensitivities
    Opis:
    Hydrazinium 5-aminotetrazolate (2) was synthesized via two facile routes. Both the reaction of 5-amino-1H-tetrazole (1) with hydrazine hydrate in aqueous solution and the reaction of 1 with diluted hydrazine solution in THF yield 2 in excellent purities and yields. 2 was characterized comprehensively by X-ray diffraction, IR, Raman and multinuclear NMR spectroscopy, mass spectrometry, elemental analysis and differential scanning calorimetry. The heat of formation was calculated (CMS-4M) using the atomization method to be 373 kJ mol-1. With this value and the X-ray density several detonation parameter (heats of explosion, detonation pressure, detonation velocity, explosion temperature) were calculated with the EXPLO5 computer software. An incredible high value (9516 m s-1) was obtained for the detonation velocity. Therefore experimentally tests to determine the velocity of detonation were performed. In addition the use of 2 in solid propellant compositions was calculated and tested in combination with oxidizers, e.g. ammonium dinitramide. Lastly the sensitivities towards impact, friction and electrostatic discharge were determined with the BAM drophammer, friction tester and an ESD machine.
    Źródło:
    Central European Journal of Energetic Materials; 2008, 5, 3-4; 3-18
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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