Organo-f-Element Thermochemistry. Absolute Metal-Ligand Bond Disruption Enthalpies in Bis(pentamethylcyclopentadienyl)samarium Hydrocarbyl, Hydride, Dialkylamide, Alkoxide, Halide, Thiolate, and Phosphide Complexes. Implications for Organolanthanide Bonding and Reactivity

Journal of the American Chemical Society

Volumn 111, Issue 20, 1989, Pages 7844-7853

  Nolan, Steven P ^a   Stern, David ^a   Marks, Tobin J ^a  

^a NORTHWESTERN UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33845183199     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja00202a027     Document Type: Article

References (56)

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19. Hedden, D.; Marks, T. J., unpublished results.
20. Schock, L. E.; Marks, T. J., manuscript in preparation.
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30. D(RO-H) taken from: Stull, D. R.; Westrum, E. F.; Sinke, G. C. The Chemical Thermodynamics of Organic Compounds; Wiley: New York, 1969.
31. For a related monomeric complex, see: Evans, W. J.; Hanusa, T. P.; Levan, K. R. Inorg. Chim. Acta 1985, 110, 191–195.
32. For gas-phase lanthanide ion-molecule studies, see: Buckner, S. W.; Freiser, B. S. In ref 1, pp 1583–1603, and references therein. Huang, Y.; Freiser, B. S. J. Am. Chem. Soc. 1988, 110, 4434–4435, and references therein.
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36. 2 series (R = Me, Ph) further support this contention: Dias, A. R.; Salema, M. S.; Simoes, J. A. M.; Pattiasina, J. W.; Teuben, J. H. J. Organomet. Chem. 1988, 346, C4–C6.
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39. Calculated from thermodynamic data given by: Morss, L. R. In The Chemistry of the Actinide Elements, 2nd ed.; Katz, J. J., Seaborg, G. T., Morss, L. R., Eds., Chapman and Hall: London, 1986; Chapter 17.
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46. 1H NMR studies, all of the Si-Me groups are typically magnetically equivalent down to ca. -85 °C.
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49. 2) parameters.
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51. 2Sm(THF)OEt.
52. Bruno, J. W.; Smith, G. M.; Marks, T. J.; Fair, C. K.; Schultz, A. J.; Williams, J. M. J. Am. Chem. Soc. 1986, 108, 40–56. Fendrick, C. M.; Marks, T. J. J. Am. Chem. Soc. 1986, 108, 435–437.
53. See also: Ulibarri, T. A.; Ziller, J. W.; Evans, W. J. Abstracts of Papers, 194th National Meeting of the American Chemical Society, New Orleans, LA; American Chemical Society: Washington, DC, 1987; INOR 262.
54. Cotton, F. A.; Kibala, P. Polyhedron 1987, 6, 645–646.
55. 2Ph in excess THF.
56. Nolan, S. P.; Marks, T. J., unpublished observations. See also: Ulibarri, T. A.; Evans, W. J. Abstracts of Papers, 193rd National Meeting of the American Chemical Society, Denver, CO; American Chemical Society: Washington, DC, 1987; INOR 315.