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Volumn 16, Issue 9, 1997, Pages 1813-1815

β-Si-H agostic rigidity in a solvent-free indenyl-derived ansa-yttrocene silylamide

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EID: 4043102059     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om9608925     Document Type: Article
Times cited : (116)

References (38)
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    • Reviews: (a) Watson, P. L.; Parshall, G. W Acc. Chem. Res. 1985, 18, 51. (b) Yasuda, H.; Tamai, H. Prog. Polym. Sci. 1993, 18, 1097.
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    • For current reviews, see: (a) Schumann, H.; Meese-Marktscheffel, J. A.; Esser, L. Chem. Rev. 1995, 95, 865. (b) Edelmann, F. T. In Comprehensive Organometallic Chemistry II; Abel, E. W., Stone, F. G. A., Wilkinson, G., Eds.; Pergamon: Oxford, U.K., 1995; Vol. 4, Chapter 2.
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    • Abel, E. W., Stone, F. G. A., Wilkinson, G., Eds.; Pergamon: Oxford, U.K., Chapter 2
    • For current reviews, see: (a) Schumann, H.; Meese-Marktscheffel, J. A.; Esser, L. Chem. Rev. 1995, 95, 865. (b) Edelmann, F. T. In Comprehensive Organometallic Chemistry II; Abel, E. W., Stone, F. G. A., Wilkinson, G., Eds.; Pergamon: Oxford, U.K., 1995; Vol. 4, Chapter 2.
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    • Attempts to simplify the method of preparation of lanthanidocene complexes have only rarely been undertaken: (a) Watson, P. L.; Whitney, J. F.; Harlow, R. L. Inorg. Chem. 1981, 20, 3271. (b) Booij, M.; Kiers, N. H.; Heeres, H. J.; Teuben, J. H. J. Organomet. Chem. 1989, 364, 79. (c) For further non-salt metathesis routes to organolanthanide complexes, see: Schaverien, C. J. Adv. Organomet. Chem. 1994, 36, 283.
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    • Watson, P.L.1    Whitney, J.F.2    Harlow, R.L.3
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    • Attempts to simplify the method of preparation of lanthanidocene complexes have only rarely been undertaken: (a) Watson, P. L.; Whitney, J. F.; Harlow, R. L. Inorg. Chem. 1981, 20, 3271. (b) Booij, M.; Kiers, N. H.; Heeres, H. J.; Teuben, J. H. J. Organomet. Chem. 1989, 364, 79. (c) For further non-salt metathesis routes to organolanthanide complexes, see: Schaverien, C. J. Adv. Organomet. Chem. 1994, 36, 283.
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    • Attempts to simplify the method of preparation of lanthanidocene complexes have only rarely been undertaken: (a) Watson, P. L.; Whitney, J. F.; Harlow, R. L. Inorg. Chem. 1981, 20, 3271. (b) Booij, M.; Kiers, N. H.; Heeres, H. J.; Teuben, J. H. J. Organomet. Chem. 1989, 364, 79. (c) For further non-salt metathesis routes to organolanthanide complexes, see: Schaverien, C. J. Adv. Organomet. Chem. 1994, 36, 283.
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    • The amine elimination reaction as a route to zirconocene complexes is meanwhile established: (a) Hughes, A. K.; Meetsma, A.; Teuben, J. H. Organometallics 1993, 12, 1936. (b) Herrmann, W. A.; Morawietz, M. J. A.; Priermeier, T. Angew. Chem. 1994, 106, 2025. (c) Diamond, G. M.; Jordan, R. F.; Petersen, J. L. Organometallics 1996, 15, 4045 and references therein.
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    • The amine elimination reaction as a route to zirconocene complexes is meanwhile established: (a) Hughes, A. K.; Meetsma, A.; Teuben, J. H. Organometallics 1993, 12, 1936. (b) Herrmann, W. A.; Morawietz, M. J. A.; Priermeier, T. Angew. Chem. 1994, 106, 2025. (c) Diamond, G. M.; Jordan, R. F.; Petersen, J. L. Organometallics 1996, 15, 4045 and references therein.
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    • Herrmann, W.A.1    Morawietz, M.J.A.2    Priermeier, T.3
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    • and references therein
    • The amine elimination reaction as a route to zirconocene complexes is meanwhile established: (a) Hughes, A. K.; Meetsma, A.; Teuben, J. H. Organometallics 1993, 12, 1936. (b) Herrmann, W. A.; Morawietz, M. J. A.; Priermeier, T. Angew. Chem. 1994, 106, 2025. (c) Diamond, G. M.; Jordan, R. F.; Petersen, J. L. Organometallics 1996, 15, 4045 and references therein.
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    • Diamond, G.M.1    Jordan, R.F.2    Petersen, J.L.3
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    • note
    • bridge), -22.41 (Si-N).
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    • note
    • For full experimental and characterization details for 4, see the Supporting Information.
  • 28
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    • 89Y NMR resonance could be observed for rac-3. Similar problems were reported for a cyclopentadienyl-derived yttrium complex: Schaverien, C. J. Organometallics 1994, 13, 69.
    • (1994) Organometallics , vol.13 , pp. 69
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    • note
    • -3 for Z = 4. Data were collected at 163 K on an Enraf-Nonius CAD4 diffractometer. The structure was solved by Patterson methods, and least-squares refinement of the model based on 2472 reflections (I > 0.01σ(I)) converged to a final R1 = 3.2% (wR2 = 7.4%) and GOF = 1.05. All hydrogen atoms were located in difference Fourier maps and refined with isotropic thermal parameters.
  • 34
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    • For polyagostic Ln⋯Me interactions, see: (a) Tilley, T. D.; Andersen, R. A.; Zalkin, A. Inorg. Chem. 1984, 23, 2271. (b) Evans, W. J.; Anwander, R.; Ziller, J. W.; Khan, S. I. Inorg. Chem. 1995, 34, 5927.
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    • Tilley, T.D.1    Andersen, R.A.2    Zalkin, A.3
  • 35
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    • For polyagostic Ln⋯Me interactions, see: (a) Tilley, T. D.; Andersen, R. A.; Zalkin, A. Inorg. Chem. 1984, 23, 2271. (b) Evans, W. J.; Anwander, R.; Ziller, J. W.; Khan, S. I. Inorg. Chem. 1995, 34, 5927.
    • (1995) Inorg. Chem. , vol.34 , pp. 5927
    • Evans, W.J.1    Anwander, R.2    Ziller, J.W.3    Khan, S.I.4


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