Fourier transform Raman Spectroscopy (Nd: YAG laser at 1064 nm) was used to characterize the four stable phases of 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,9.03,11]dodecane (HNIW, CL-20). Raman spectra are reported over the region from 0-4000 cm-1, relative to the laser line. A tentative assignment of the most predominant Raman peaks was made with the aid of QM calculations at the B3LYP/6-31G(d) level. A method for detecting polymorphic impurities in epsilon-CL-20 was also developed. The detection level for polymorphic impurities was determined to be below 2%. A method for producing gamma-CL-20 is also presented. (Abstract Copyright [2004], Wiley Periodicals, Inc.)
Fourier transform Raman spectroscopy of the four crystallographic phases of alpha , beta , gamma and epsilon 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,9.03,11]dodecane (HNIW, CL-20)
Propellants, Explosives, Pyrotechnics ; 29 , 4 ; 205-208
2004
4 Seiten, 14 Quellen
Aufsatz (Zeitschrift)
Englisch
Fourier-Transformation , Raman-Spektrometrie , YAG-Laser , stabile Phase , Raman-Spektrum , Laser , Peak , Verunreinigung , Urheberrecht , Fachzeitschrift , Kristallphase , Analysenmesstechnik , Infrarotstrahlung , Lichtemitter , Maximum , Messen , Messtechnik , Nachweis , Quelle , Spektrometrie , Spektrum , Strahlenquelle , allgemeines Messwesen , elektromagnetische Strahlung , elektromagnetische Strahlungsquelle , Austausch (Wärmeaustausch) , thermische Strahlung , IR-Laser
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