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Volumn 105, Issue 37, 2001, Pages 8495-8499

Use of DFT methods for the calculation of the entropy of gas phase organic molecules: An examination of the quality of results from a simple approach

Author keywords

[No Author keywords available]

Indexed keywords

GAS-PHASE ORGANIC MOLECULES;

EID: 0035921577     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp010321c     Document Type: Article
Times cited : (73)

References (20)
  • 6
    • 0011582405 scopus 로고    scopus 로고
    • note
    • 5 specified three methods for calculating entropies: E1 uses MP2/6-31G(d) structures and HF/6-31G(d) frequencies, with the harmonic oscillator approximation used for all vibration frequencies other than for very low barrier internal rotations (V < 3.5 kJ at 298 K), these being treated as free rotors. E2 treats individual internal rotations explicitly, with a cosine potential based on barrier heights calculated at the MP2/6-311+G(2df,p)//MP2/6-31G(d) level. E3 uses a full two-dimensional torsional potential energy surface for all rotor-rotor couplings.
  • 11
    • 0011643675 scopus 로고    scopus 로고
    • Serena Software, Box 3076, Bloomington, IN
    • Serena Software, Box 3076, Bloomington, IN.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.