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Volumn 134, Issue 24, 2011, Pages

Terahertz spectrum and normal-mode relaxation in pentaerythritol tetranitrate: Effect of changes in bond-stretching force-field terms

Author keywords

[No Author keywords available]

Indexed keywords

ANHARMONICITIES; BOND-STRETCHING; CLASSICAL MOLECULAR DYNAMICS; DIPOLE-DIPOLE; EXCITED MODE; FORCE FIELDS; HIGH-FREQUENCY MODE; MODE RELAXATION; MORSE POTENTIALS; NORMAL-MODE FREQUENCIES; PEAK POSITION; PENTAERYTHRITOL TETRANITRATE; RELAXATION METHODS; ROOM TEMPERATURE; TERAHERTZ; TERAHERTZ SPECTRA; TIME AUTOCORRELATION FUNCTIONS; TIME-SCALES; TRANSITION DIPOLE;

EID: 79960161818     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3600756     Document Type: Article
Times cited : (14)

References (31)
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    • See supplementary material at E-JCPSA6-134-018124 for animations depicting the normal-mode displacements for THz-region k 0 modes 22 and 24 and higher frequency k 0 modes 36, 39, and 45.
    • See supplementary material at http://dx.doi.org/10.1063/1.3600756 E-JCPSA6-134-018124 for animations depicting the normal-mode displacements for THz-region k 0 modes 22 and 24 and higher frequency k 0 modes 36, 39, and 45.
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    • Intriguingly, the experimental THz spectrum reported by Whitley (Ref.) for PETN at T 20 K appears to exhibit some of the features present in our DDACF spectra (Figs.) but absent from the experimental room-temperature spectrum of Allis and Korter (Ref.) shown in Fig.. We have chosen not to include the spectrum of Whitley here due to the ∼280 K temperature difference between their study and the present one; particularly in light of concerns about the validity of the classical description, even for THz modes, at T 20 K.
    • Intriguingly, the experimental THz spectrum reported by Whitley (Ref.) for PETN at T 20 K appears to exhibit some of the features present in our DDACF spectra (Figs.) but absent from the experimental room-temperature spectrum of Allis and Korter (Ref.) shown in Fig.. We have chosen not to include the spectrum of Whitley here due to the ∼280 K temperature difference between their study and the present one; particularly in light of concerns about the validity of the classical description, even for THz modes, at T 20 K.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.