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Volumn 129, Issue 1, 2007, Pages 234-240

Kinetics of hydrogen atom transfer from (η5-C 5H5)Cr(CO)3H to various olefins: Influence of olefin structure

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL BONDS; HYDROGEN; HYDROGENATION; ISOTOPES; MOLECULAR STRUCTURE; OLEFINS; RATE CONSTANTS;

EID: 33846144200     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja066325i     Document Type: Article
Times cited : (85)

References (43)
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    • Dedieu, A, Ed, VCH: New York, Chapter 8
    • (a) Bullock, R. M. Isotope Effects in Reactions of Transition Metal Hydrides. In Transition Metal Hydrides; Dedieu, A., Ed.; VCH: New York, 1991, Chapter 8.
    • (1991) Transition Metal Hydrides
    • Bullock, R.M.1
  • 18
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    • Isotope Methods-Homogeneous
    • Horváth, I. T, Ed, Wiley: New York
    • (b) Bullock, R. M.; Bender, B. R. Isotope Methods-Homogeneous. In Encyclopedia of Catalysis, Vol. 4: Horváth, I. T., Ed.; Wiley: New York, 2003.
    • (2003) Encyclopedia of Catalysis , vol.4
    • Bullock, R.M.1    Bender, B.R.2
  • 20
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    • 2006, 128, 11314.
    • (2006) , vol.11314 , Issue.128
  • 24
    • 33846152184 scopus 로고    scopus 로고
    • We have used the same estimate (3) of ktrH/ ktrD for all transfers of H./D. from carbon-centered radicals back to Cr. because the radicals in question are similar (tertiary) and none of the equations for S is very sensitive to this isotope effect see text
    • . because the radicals in question are similar (tertiary) and none of the equations for S is very sensitive to this isotope effect (see text).
  • 25
    • 33846126780 scopus 로고    scopus 로고
    • E-7 is 1.38 kcal/mol more stable than Z-7: J. Franz, Pacific Northwest National Laboratories, personal communication.
    • E-7 is 1.38 kcal/mol more stable than Z-7: J. Franz, Pacific Northwest National Laboratories, personal communication.
  • 26
    • 33846157626 scopus 로고    scopus 로고
    • It has been suggested8 that such inverse isotope effects are the consequence of a two-step mechanism for H. transfer, with a fast H. transfer equilibrium inside a solvent cage followed by slow diffusion out of the cage
    • . transfer equilibrium inside a solvent cage followed by slow diffusion out of the cage.
  • 27
    • 33846144602 scopus 로고    scopus 로고
    • The effect of the temperature difference is insignificant compared to the uncertainty in our rate constants
    • The effect of the temperature difference is insignificant compared to the uncertainty in our rate constants.
  • 31
    • 0003998388 scopus 로고    scopus 로고
    • 82nd ed, Lide, D. R, Ed, CRC Press: Boca Raton, FL
    • CRC Handbook of Chemistry and Physics, 82nd ed.; Lide, D. R., Ed.: CRC Press: Boca Raton, FL, 2001-2002.
    • (2001) CRC Handbook of Chemistry and Physics
  • 42
    • 33846129916 scopus 로고    scopus 로고
    • Decrease of deuterium content in 4-d5 was observed under prolonged reaction times or at high temperatures
    • 5 was observed under prolonged reaction times or at high temperatures.
  • 43
    • 33846172176 scopus 로고    scopus 로고
    • 2H is approximately 0.01 M.
    • 2H is approximately 0.01 M.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.