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Volumn 26, Issue 2, 2007, Pages 352-357

Effect of phosphines on the thermodynamics of the cobalt-catalyzed hydroformylation system

Author keywords

[No Author keywords available]

Indexed keywords

COBALT HYDROFORMYLATION REACTION; EQUILIBRIUM CONSTANTS; LIGANDS; VAN'T HOFF PLOTS;

EID: 33846603717     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om060768d     Document Type: Article
Times cited : (23)

References (69)
  • 10
    • 33846587795 scopus 로고    scopus 로고
    • Bor, G.; Dietler, U. K. IX International Conference on Organometallic Chemistry; September 3-7, 1979; Dijon, France, Abstracts: B56.
    • Bor, G.; Dietler, U. K. IX International Conference on Organometallic Chemistry; September 3-7, 1979; Dijon, France, Abstracts: B56.
  • 24
    • 72749119996 scopus 로고
    • Stone, F. A, West, R, Eds, Academic Press: New York
    • Pruett, R. L. Advances in Organometallic Chemistry; Stone, F. A., West, R., Eds.; Academic Press: New York, 1979; Vol. 17, pp 1-60.
    • (1979) Advances in Organometallic Chemistry , vol.17 , pp. 1-60
    • Pruett, R.L.1
  • 32
    • 33846563332 scopus 로고
    • U.S. Patent 4,277,634
    • Walker, W. E. U.S. Patent 4,277,634, 1981.
    • (1981)
    • Walker, W.E.1
  • 46
    • 0003896754 scopus 로고
    • Murtterties, E. L, Ed, Marcel Dekker: New York, Chapter 4
    • Jesson, J. P. In Transition Metal Hydrides; Murtterties, E. L., Ed.; Marcel Dekker: New York, 1971; Chapter 4.
    • (1971) Transition Metal Hydrides
    • Jesson, J.P.1
  • 54
    • 33846631723 scopus 로고    scopus 로고
    • One of the referees has commented that the less endothermic enthalpy and negative reaction entropy in isobutyl alcohol may indicate that there is H-bonding between the OH moiety of the solvent molecule with the hydride ligand of HCo(n-Bu3P)(CO)355
    • 55
  • 62
    • 33846639966 scopus 로고    scopus 로고
    • p data are contained in Table 4 in the Supporting Information.
    • p data are contained in Table 4 in the Supporting Information.
  • 65
    • 33846608997 scopus 로고    scopus 로고
    • The Co-Co bond energy is linked to the Co-H bond energy by the enthalpy change for the hydrogenation of the dimer. This latter quantity has been investigated independently by three groups with excellent agreement. 5,12,61 See ref 61 for a discussion of a fourth observation that is inconsistent with the other three, Accordingly, if the Co-H bond energy is 8 kcal/mol higher, then the Co-Co bond energy must be 16 kcal/mol higher, placing it at 35 kcal/mol. This 35 kcal/mol value is well outside the error range of either the NMR measurement, 19 ± 2 kcal/mol,6 or the latest mass spectroscopic value, 20 ± 7 kcal/mol.9 Furthermore, 35 kcal/mol is much higher than any of the measurements for the Co-Co bond energy, some of which were as low as 14.5 kcal/mol.65
    • 65


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.