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An Easy Method to Prepare D 3 and C 2 ‐TATP Crystals
Author(s) -
EspinosaFuentes Eduardo,
ColpasCastillo Fredy,
MezaFuentes Edgardo,
Ropero Jorge
Publication year - 2016
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.201500245
Subject(s) - raman spectroscopy , conformational isomerism , recrystallization (geology) , opacity , crystallography , boiling point , materials science , melting point , diffraction , raman scattering , spectroscopy , analytical chemistry (journal) , chemistry , molecule , optics , physics , organic chemistry , paleontology , quantum mechanics , composite material , biology
D 3 and C 2 TATP structures interconvert at room temperature. Herein, an easy method to isolate both conformers is shown that consists of multiple recrystallization steps using different solvent and heating to boiling. Spectroscopic and physical measurements, such as Raman spectroscopy, X‐ray diffraction, and melting point analysis, showed that clear and opaque crystals, respectively, represent different conformations of TATP. Additionally, the transition energy between both conformers was estimated using the Raman shifts.