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The High‐Pressure Characterization of Energetic Materials: 1‐Methyl‐5‐Nitramino‐1 H ‐Tetrazole
Author(s) -
Ciezak Jennifer A.
Publication year - 2010
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.200900077
Subject(s) - raman spectroscopy , diamond anvil cell , synchrotron , crystallite , diffraction , infrared , phase transition , characterization (materials science) , crystallography , hydrostatic pressure , chemistry , analytical chemistry (journal) , tetrazole , materials science , volume (thermodynamics) , x ray crystallography , infrared spectroscopy , thermodynamics , optics , stereochemistry , nanotechnology , physics , organic chemistry , chromatography
Pressure–volume relations and optical Raman and Infrared spectra of polycrystalline 1MNT have been obtained under quasi‐hydrostatic conditions up to 16 and 40 GPa, respectively, by using diamond anvil cell, synchrotron‐based angle‐resolved X‐ray diffraction, and microspectroscopy. The X‐ray measurements show that the pressure–volume relations remain smooth up to 16 GPa at room temperature, while vibrational measurements show no evidence of a phase transition to near 40 GPa. Anomalous increases of several vibrational intensities and bandwidths suggest that subtle molecular distortions and structural modifications occur in the crystal as pressure increases. Decompression experiments indicate the structural modifications are reversible.