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Volumn 26, Issue 11, 2007, Pages 2840-2848

DFT study of an inner-sphere mechanism in the hydrogen transfer from a hydroxycyclopentadienyl ruthenium hydride to imines

Author keywords

[No Author keywords available]

Indexed keywords

AMINES; DENSITY FUNCTIONAL THEORY; ENERGY BARRIERS; HYDROGEN; MATHEMATICAL MODELS; REACTION KINETICS;

EID: 34249938172     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om070169m     Document Type: Article
Times cited : (53)

References (72)
  • 41
    • 0034516641 scopus 로고    scopus 로고
    • and references therein
    • Veiros, L. F. Organometallics, 2000, 19, 5549, and references therein.
    • (2000) Organometallics , vol.19 , pp. 5549
    • Veiros, L.F.1
  • 43
    • 34249946496 scopus 로고    scopus 로고
    • Computational Chemistry: Reviews of Current Trends; Leszczynski, J., Ed.; ISSN 1793-0979. A great deal of computational technical details and background references could be found in a databank provided by Schrödinger, Inc., Portland, OR, and Gaussian Inc.; see also refs 4 and 5.
    • Computational Chemistry: Reviews of Current Trends; Leszczynski, J., Ed.; ISSN 1793-0979. A great deal of computational technical details and background references could be found in a databank provided by Schrödinger, Inc., Portland, OR, and Gaussian Inc.; see also refs 4 and 5.
  • 44
    • 0000304948 scopus 로고    scopus 로고
    • The self-consistent reaction field (SCRF) method is explained in the Supporting Information. The Jaguar 6.0 package treats solvated molecular systems with the SCRF method, using its own Poisson-Boltzmann solver, which makes it possible to compute solvation energies and minimum-energy solvated structures of solvated transition states. For details see: (a) Tannor, D. J.; Marten, B.; Murphy, R.; Friesner, R. A.; Sitkoff, D.; Nicholls, A.; Ringnalda, M.; Goddard, W. A., III; Honig, B. J. Am. Chem. Soc. 1994, 116, 11875.
    • The self-consistent reaction field (SCRF) method is explained in the Supporting Information. The Jaguar 6.0 package treats solvated molecular systems with the SCRF method, using its own Poisson-Boltzmann solver, which makes it possible to compute solvation energies and minimum-energy solvated structures of solvated transition states. For details see: (a) Tannor, D. J.; Marten, B.; Murphy, R.; Friesner, R. A.; Sitkoff, D.; Nicholls, A.; Ringnalda, M.; Goddard, W. A., III; Honig, B. J. Am. Chem. Soc. 1994, 116, 11875.
  • 56
    • 34249940133 scopus 로고    scopus 로고
    • Computational evaluation of lower hapticity Ru-Cp structures is complicated due to the shallow potential in the direction of the movement of the RuH(CO)2 group perpendicular to the C-C or C-C-C ring fragment. Quasi-stable intermediates were often obtained for a quite large number of conventional energy minimization steps. These problems were essentially absent in the model with explicit solvent molecules
    • 2 group perpendicular to the C-C or C-C-C ring fragment. Quasi-stable intermediates were often obtained for a quite large number of conventional energy minimization steps. These problems were essentially absent in the model with explicit solvent molecules.
  • 57
    • 34249950114 scopus 로고    scopus 로고
    • A series of authentic imine substrates was used in the verification study as well see details in Supporting Information
    • A series of authentic imine substrates was used in the verification study as well (see details in Supporting Information).
  • 61
    • 34249941379 scopus 로고    scopus 로고
    • Even a small basis set like lacvp performs rather well
    • Even a small basis set like lacvp performs rather well.
  • 63
    • 34249942847 scopus 로고    scopus 로고
    • In the reverse reaction (the dehydrogenation) the β-elimination step precedes the decoordination, and therefore a kinetic isotope effect is expected and is also observed
    • In the reverse reaction (the dehydrogenation) the β-elimination step precedes the decoordination, and therefore a kinetic isotope effect is expected and is also observed.
  • 64
    • 34249930702 scopus 로고    scopus 로고
    • Results of computational modeling of the internal trap process will be reported elsewhere upon completion
    • Results of computational modeling of the "internal trap" process will be reported elsewhere upon completion.
  • 65
    • 34249943096 scopus 로고    scopus 로고
    • The rule of thumb is that a reaction runs at room temperature, 298 K, if the activation energy is about 20 to 22 kcal/mol, which corresponds to the barrier of about 15 kcal/mol if the same reaction runs at approximately the same rate at -70°C.
    • The rule of thumb is that a reaction runs at room temperature, 298 K, if the activation energy is about 20 to 22 kcal/mol, which corresponds to the barrier of about 15 kcal/mol if the same reaction runs at approximately the same rate at -70°C.
  • 72
    • 34249952178 scopus 로고    scopus 로고
    • Schrödinger, Inc, Portland, OR
    • Jaguar 4.0 and 6.0; Schrödinger, Inc.: Portland, OR.
    • Jaguar 4.0 and 6.0


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.