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Electric Spark Sensitivity of Polynitro Arenes. Part II. Aspects of the Molecular Structure with Utilization of the Net Charges of Nitro Groups

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PL
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An ESZ KTTV instrument of a new, relatively simple construction has been applied to the determination of electric spark sensitivity (EES) of 31 polynitro arenes and their derivatives. Results obtained are compared with the theoretical DFT B3LYP/6-31G(d,p) Mulliken net charges of nitro groups, QNO2, which primarily react in the initiation by the spark. On the basis of analysis of the results obtained it is shown that intermolecular interaction plays in this initiation a considerable role. However, generally accepted presumption, that most positive QNO2 value represents a sensitivity of the given molecule, is not valid without reserve. If the polynitro aromatic molecule contains several potential reaction centres, the proper initiation might then be realized selectively (depending on the kind of initiation impulse).
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  • Institute of Energetic Materials, Faculty of Chemical Technology, University of Pardubice, CZ-532 10 Pardubice, Czech Republic, svatopluk.zeman@upce.cz
Bibliografia
  • [1] Zeman S., Pelikan V, Majzlik J., Friedl Z., Electric Spark Sensitivity of Nitramines. Part I. Aspects of Molecular Structure, Centr. Europ. J. Energ, Mater., 2006, 3(3), 27-44.
  • [2] Zeman S., Koci J., Majzlik J., Electric Spark Sensitivity of Polynitro Arenes. Part 1. A Comparison of Two Instruments, ibid., 2007, 4(3), 15-24.
  • [3] "Special Scientific and Development Activity in the Field of Energetic Materials". Project No. FC-M2/Q5, Ministry of Industry and Commerce, Prague, 2000-2002, solved by University of Pardubice.
  • [4] Strnad J., Majzlik J., Determination of Electrostatic Spark Sensitivity of Energetic Materials. Proc. 4lh Seminar "New Trends in Research of Energetic Materials", Univ. Pardubice, April 2001, pp. 303-307.
  • [5] Jarman D., Prinse W.s Bouma R., Electrostatic Discharge Initiation of CE-20: Effect of Discharge Time and Spark Energy, Proc. 34"1 Int. Annual Conf ICT Karlsruhe, June 2003, pp. 71/1-71/11.
  • [6] Martinez Pacheco M., Bouma R., Katgerman L., Electrostatic Discharge initiation of Ti+C Mixtures and the Thermite AI+MoO3, Proc. 35lh Int. Annual Conf. ICT Karlsruhe, June 2004, pp. 105/1-105/12.
  • [7] Zeman S., New Aspects of Initiation Reactivities of Energetic Materials Demonstrated on Nitramines, J. Hazard. Mater., 2006, 732, 155-164.
  • [8] Zeman S., Sensitivities of High Energy Compounds, in: Structure & Bonding, Vol. 125, High Energy Density Compounds, Klapoetke T. (Ed.), Springer, New York 2007, p. 195.
  • [9] Zhang C,, Shu Y, Huang Y, Zhao X., Dong H., Investigation of Correlation between Impact Sensitivities andNitro Group Charges inNitro Compounds, J. Phys. Chem., 2005, B109, 8978-8982.
  • [10] Zhang C., Shu Y., Wang X., Theoretical Investigation of the Relationship between Impact Sensitivity and the Charges of the Nitro Group in Nitro Compounds, J. Energet. Mater, 2005, 23, 107-119.
  • [11] Xu X., Xiao H., Wang G., Ju X., Theoretical studies on structures and relative stability for polynitrohexaazaadamantanes, J. Chem. Phys., 2006, 19(5), 395-400.
  • [12] Koci J., Zeman S., Majzlik J,, Strnad J., Notices to Determination of the Electric Spark Sensitivity of Energetic Materials, Proc. 5!h Seminar ,,New Trends in Research of Energetic Materials ", Univ. Pardubice, April 2002, pp. 110-126.
  • [13] TITAN v.1.0.8. Wavefunction, Schrodinger, Inc., USA, 2001.
  • [14] Matveev V.G., Dubikhin V.V., Nazin G.M., Soglasovanyi mekhanism razlozheniya aromaticheskikh nitrosoedinii v gazovoy faze (Thermolysis Mechanism of the Aromatic Nitrocompounds in the Gas Phase), Izv. Akad. Nauk SSSR, Ser. Khim., 1978,474-477.
  • [15] Bulusu S., Einstein D.I., Autera J.R., Anderson D.A., Velicky R.W., Deuterium Kinetic Isotope Effect: An Experimental Probe for the Molecular Processes Governing the Initiation of RDX, HMX and TNT, Proc. 8!h Int. Symp. on Detonation, Albuquerque, NM, July, 1985.
  • [16] Manelis G.B., Nazin G.M.,RubtsoYu. I., StruninV.A., Thermal Decomposition and Combustion of Explosives and Powders (Russ.), Izdat. Nauka, Moscow 1996.
  • [17] Zeman S., Krupka M., Study of the Impact Reactivity of Polynitro Compounds, Part II. Impact Sensitivity as the First Reaction of Polynitro Arenes, Propellants Explos. Pyrotech., 2003, 28, 249-255.
  • [18] Zeman S., Friedl Z., Rohac M., Molecular Structure Aspects of Initiation of some Highly Thermostable Polynitro Arenes, Thermochim. Ada, 2006, 451, 105-114.
  • [19] Zeman S., Varga R., Decomposition of some Polynitro Arenes Initiated by Heat and Shock. Part I. 2,4,6-Trinitrotoluene, J. Hazard. Mater., 2006,132, 165-170.
  • [20] Zeman S., Varga R., Decomposition of some Polynitro Arenes Initiated by Heat and Shock. Part II. Several N-(2,4,6-trinitrophenyl)-substituted amino derivatives, /. Hazard. Mater., 2006, 737, 1345-1351.
  • [21] Rohac M., Zeman S.,Ruzicka A., Crystallography of 2,2',4,4',6,6'-hexanitro-1,1'-biphenyl and its relation to initiation reactivity, Chem. Mater., 2008 - in press.
  • [22] Zeman S., Peskova M., A Relationship between I5N NMR Chemical Shift and Detonation Characteristics of Polynitro Derivatives of Arenes and Polyazaarenes, Centr. Europ. J. Energ. Mater., 2005 , 2(3) 71-84.
  • [23] Zenian S., A study of Chemical Micro-mechanism of the Organic Polynitro Compounds Initiation, in: Energetic materials, Detonation, Combustion, P. Politzer and J. S. Murray (Eds.), Elsevier, Amsterdam 2003, Part 2, pp. 25-52.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT1-0035-0054
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