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Volumn 26, Issue 5, 2007, Pages 1241-1249

Free energy ab Initio metadynamics: A new tool for the theoretical study of organometallic reactivity? Example of the C-C and C-H reductive eliminations from platinum(IV) complexes

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL ACTIVATION; FREE ENERGY; LIGANDS; PLATINUM COMPOUNDS; PROBABILITY DENSITY FUNCTION;

EID: 33947184342     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om060980h     Document Type: Article
Times cited : (35)

References (66)
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    • and references therein
    • (c) Lersch, M.; Tilset, M. Chem. Rev. 2005, 105, 2471, and references therein.
    • (2005) Chem. Rev , vol.105 , pp. 2471
    • Lersch, M.1    Tilset, M.2
  • 33
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    • CP2K, 2000-2005
    • (a) CP2K, http://cp2k.berlios.de, 2000-2005.
  • 37
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    • High Performance Computing in Chemistry
    • Grotendorst, J, Ed
    • Krack, M.; Parrinello M. In High Performance Computing in Chemistry; Grotendorst, J., Ed.; NIC series, Vol. 25; 2004; pp 29-51.
    • (2004) NIC series , vol.25 , pp. 29-51
    • Krack, M.1    Parrinello, M.2
  • 39
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    • 3 cubic box has also been used for some test calculations.
    • 3 cubic box has also been used for some test calculations.
  • 40
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    • Frisch, M. J.; et al. Gaussian 03, Revision B.04; Gaussian, Inc.: Wallingford, CT, 2004.
    • Frisch, M. J.; et al. Gaussian 03, Revision B.04; Gaussian, Inc.: Wallingford, CT, 2004.
  • 43
  • 44
    • 33947135703 scopus 로고    scopus 로고
    • A set of polarizations was used for each atom Pt, P, C, and H with the respective values of 0.993, 0.364, 0.75, and 0.8.
    • A set of polarizations was used for each atom Pt, P, C, and H with the respective values of 0.993, 0.364, 0.75, and 0.8.
  • 46
    • 33947175951 scopus 로고    scopus 로고
    • Drahos, L, Vekey K. MassKinetics computer program Version 1.6, 2006
    • Drahos, L.; Vekey K. MassKinetics computer program Version 1.6 (http://www.chemres.hu/ms/masskinetics), 2006.
  • 48
    • 33947157042 scopus 로고    scopus 로고
    • The energy product has been computed as the sum of CH4 plus the Pt(II) complex. A complex between methane and the Pt(II) is formed, but the interaction is so weak that the influence on the exoenergeticity of the reaction is negligible; see ref 4a for example
    • 4 plus the Pt(II) complex. A complex between methane and the Pt(II) is formed, but the interaction is so weak that the influence on the exoenergeticity of the reaction is negligible; see ref 4a for example.
  • 54
    • 33947114713 scopus 로고    scopus 로고
    • The same results are observed with 1Me and 2Me.
    • The same results are observed with 1Me and 2Me.
  • 55
    • 33947141789 scopus 로고    scopus 로고
    • At higher temperature the velocities of the atoms were too high to obtain a precise enough estimation of the barriers
    • At higher temperature the velocities of the atoms were too high to obtain a precise enough estimation of the barriers.
  • 56
    • 0039925585 scopus 로고    scopus 로고
    • Estimations of transition state structure for CO dissociation have already been computed; for example see: Sztaray, B, Baer, T. J. Am. Chem. Soc. 2000, 122, 9219
    • Estimations of transition state structure for CO dissociation have already been computed; for example see: Sztaray, B.; Baer, T. J. Am. Chem. Soc. 2000, 122, 9219.
  • 57
    • 33947165106 scopus 로고    scopus 로고
    • -1 (B3LYP/sdd*), obviously less favorable than the two-step mechanism proposed.
    • -1 (B3LYP/sdd*), obviously less favorable than the two-step mechanism proposed.
  • 62
    • 0033963034 scopus 로고    scopus 로고
    • Drawings done thanks to Molden: Schaftenaar G.; Noordik, J. H. J. Comput.-Aided Mol. Des. 2000, 14, 123.
    • Drawings done thanks to Molden: Schaftenaar G.; Noordik, J. H. J. Comput.-Aided Mol. Des. 2000, 14, 123.
  • 64
    • 33947156131 scopus 로고    scopus 로고
    • Some Orbitals involved are the ligand Orbitals lower in energy than the d orbitals
    • Some Orbitals involved are the ligand Orbitals lower in energy than the d orbitals.
  • 65
    • 33947166119 scopus 로고    scopus 로고
    • The cost of a reductive elimination is higher from the six-coordinate complex than from a five-coordinate complex. But from a global mechanistic point of view, to conclude about the favored pathway for the reactions under study, the cost of the dissociation to obtain the five-coordinate complex should be taken into account
    • The cost of a reductive elimination is higher from the six-coordinate complex than from a five-coordinate complex. But from a global mechanistic point of view, to conclude about the favored pathway for the reactions under study, the cost of the dissociation to obtain the five-coordinate complex should be taken into account.
  • 66
    • 0000384893 scopus 로고    scopus 로고
    • - , for example, structure 12b of ref 4b, whereas T structures are favored by π-acceptor ligands such as phosphine ligands. Riehl, J.-F.; Yves, J.; Eisenstein, O.; Pélissier, M. Organometallics 1992, 11, 729.
    • - , for example, structure 12b of ref 4b, whereas T structures are favored by π-acceptor ligands such as phosphine ligands. Riehl, J.-F.; Yves, J.; Eisenstein, O.; Pélissier, M. Organometallics 1992, 11, 729.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.