A new class of flexible energetic salts, part 5: The structures of two hexammonium polymorphs and the ethane-1,2-diammonium salts of dinitramide |
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| Authors: | R. D. Gilardi Ray J. Butcher |
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| Affiliation: | (1) Laboratory for the Structure of Matter, Naval Research Laboratory, Washington D.C, 20375;(2) Department of Chemistry, Howard University, 525 College Street, N. W., Washington D. C, 20059 |
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| Abstract: | The crystal structures of two hexammonium polymorphs, 1 and 2, and the ethane-1,2-diammonium, 3, salts of dinitramide have been determined. 1 crystallizes in the triclinic space group  with cell dimensions a = 6.391(2), b = 7.5826(9), c = 10.828(1) Å, a = 77.58(1),  = 88.18 (2),  = 87.54(2)°, 2 crystallizes in the monoclinic space group P21/c with cell dimensions a = 6.4893(3), b = 14.5149(8), c = 10.6557(4) Å, = 94.300(4)°, and 3 crystallizes in the triclinic space group  with cell dimensions a = 5.614(1), b = 6.867(2), c = 7.371(2) Å,  = 68.89(2), = 89.00(2), = 78.90(2)°. The three structures all contain protonated amine cations which are involved in hydrogen bonding interactions with dinitramide anions. |
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| Keywords: | Hexamine structures hexammonium structures ethane-1,2-diammonium structures dinitramide structures |
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