期刊
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
卷 32, 期 11, 页码 477-484出版社
KLUWER ACADEMIC/PLENUM PUBL
DOI: 10.1023/A:1021196826824
关键词
hydroxyguanidinium structures; guanidinium structures; dinitramide structures; energetic materials
The crystal structures of two amine base salts of dinitramide, the guanidinium 1, and the hydroxyguanidinium 2, have been determined. 1 crystallizes in the triclinic space group P (1) over bar with cell dimensions a = 8.325(2) Angstrom, b = 9.301(2) Angstrom, c = 9.868(2) Angstrom, alpha = 84.73(3)degrees, beta = 69.25(3)degrees, gamma = 67.55(3)degrees, while 2 crystallizes in the noncentric monoclinic space group Pc with cell dimensions a = 7.098(2) Angstrom, b = 3.5160(10) Angstrom, c = 14.358(3) Angstrom, beta = 98.940(10)degrees. The structures of 1 and 2 contain protonated amine cations and dinitramide anions linked by hydrogen bonding. In both structures the conformations adopted by the dinitramine anions can be related to the types of hydrogen bonds it forms with the surrounding amine cations.
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