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Volumn 39, Issue 2, 1999, Pages 117-123

Kinetics of hexafluoropropylene oxide pyrolysis studied by gas-phase NMR. Kinetic measurements made easy

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EID: 0033468501     PISSN: 00212148     EISSN: None     Source Type: Journal    
DOI: 10.1002/ijch.199900013     Document Type: Article
Times cited : (27)

References (37)
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    • (1996) Encyclopedia of NMR , vol.4 , pp. 2173
    • True, N.S.1
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    • Triplet difluorocarbene lies 56.6 kcal/mol above the singlet ground state (Koda, S. Chem. Phys. 1982, 66, 383) and has different chemistry (e.g., Heicklen, J.; Cohen, N.; Saunders, D. J. Phys. Chem. 1965, 69, 1774).
    • (1982) Chem. Phys. , vol.66 , pp. 383
    • Koda, S.1
  • 16
    • 0039715591 scopus 로고
    • Triplet difluorocarbene lies 56.6 kcal/mol above the singlet ground state (Koda, S. Chem. Phys. 1982, 66, 383) and has different chemistry (e.g., Heicklen, J.; Cohen, N.; Saunders, D. J. Phys. Chem. 1965, 69, 1774).
    • (1965) J. Phys. Chem. , vol.69 , pp. 1774
    • Heicklen, J.1    Cohen, N.2    Saunders, D.3
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    • Hudlicky, M.; Pavlath, A.E., Eds.; American Chemical Society, Washington, DC
    • (b) Smart, B.E. In Chemistry of Organic Fluorine Compounds II, Hudlicky, M.; Pavlath, A.E., Eds.; American Chemical Society, Washington, DC, 1995.
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    • note
    • NALORAC Corporation, 841A Arnold Drive, Martinez, CA, 94553, email: sales@nalorac.com.
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    • note
    • 4 (-63.5 ppm) assumed temperature independent.
  • 32
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    • note
    • The NMR resonances detected in this period, when the temperature in the ampoule is changing rapidly, are broad and ill-shaped because they move during signal acquisition as a result of the temperature dependence of their chemical shifts. Furthermore, they cannot be compared with those obtained at thermal equilibrium since NMR intensities vary inversely with temperature (Curie law). With reagents that are liquid at room temperature, the situation is even worse since in the first few minutes the internal vapor pressure, and therefore the signal strength, changes rapidly as the temperature is rising.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.