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The synthesis and structural characterization of silyl-substituted fluorenes

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Abstract

Three silyl-substituted fluorenes have been prepared by direct synthetic methods and structurally characterized by X-ray diffraction. The three silyl-substituted fluorenes studied were 9-trimethylsilylfluorene (1), 9-(tert-butyldimethyl)silylfluorene (2), and 2,7-di-tert-butyl-9-trimethylsilylfluorene (3). Complex 1 is orthorhombic, P212121, a = 6.2681(14) Å, b = 14.329(3) Å, c = 15.231(4) Å, Z = 4. Complex 2 is monoclinic, P21/c, a = 12.1953(10) Å, b = 6.9977(6) Å, c = 19.6536(17) Å, β = 93.818(2), Z = 4. Complex 3 is monoclinic, P21/c, a = 11.9954(9) Å, b = 9.8978(7) Å, c = 18.5464(13) Å, β = 92.456(2), Z = 4. The long carbon–silicon bonds effectively remove any significant intramolecular interactions as little distortion is exhibited around the sp 3-carbon atom and the fluorenyl backbone demonstrates near planarity. The bulky silicon substituents also prevent intermolecular interactions, as only a few close contacts less than 4.0 Å exist in all three solid state structures.

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References

  1. O'Connor, J.M.; Casey, C.P. Chem. Rev. 1987, 87, 307.

    Google Scholar 

  2. Biagioni, R.N.; Lorkovic, I.M.; Skelton, J.; Hartung, J.B. Organometallics 1990, 9, 547.

    Google Scholar 

  3. Halterman, R.L. In Metallocenes; Togni, A.; Halterman, R.L., Eds.; Wiley-VCH: Weinheim, 1998; Vol. 1, p 520.

    Google Scholar 

  4. Samuel, E.; Setton, R. J. Organomet. Chem. 1965, 4, 156.

    Google Scholar 

  5. Samuel, E.; Alt, H.G.; Hrncir, D.C.; Rausch, M.D. J. Organomet. Chem. 1976, 113, 331.

    Google Scholar 

  6. Harder, S.; Feil, F.; Knoll, K. Angew. Chem., Int. Ed. 2001, 40, 4261.

    Google Scholar 

  7. Schmid, M.A.; Alt, H.G.; Milius, W. J. Organomet. Chem. 1996, 525, 15.

    Google Scholar 

  8. Nakamura, H.; Nakayama, Y.; Yasuda, H.; Maruo, T.; Kanehisa, N.; Kai, Y. Organometallics 2000, 19, 5392.

    Google Scholar 

  9. Constantine, S.P.; Hitchcock, P.B.; Lawless, G.A. Organometallics 1996, 15, 3905.

    Google Scholar 

  10. Constantine, S.P.; Cox, H.; Hitchcock, P.B.; Lawless, G.A. Organometallics 2000, 19, 317.

    Google Scholar 

  11. Carpino, L.A.; Wu, A.-C. U.S. Patent 5,101,059 1991.

  12. Stigers, K.D.; Koutroulis, M.R.; Chung, D.M.; Nowick, J.S. J. Org. Chem. 2000, 65, 3858.

    PubMed  Google Scholar 

  13. Carpino, L.A.; Wu, A.-C. J. Org. Chem. 2000, 65, 9238.

    PubMed  Google Scholar 

  14. Silaghi-Dumitrescu, L.; Haiduc, I.; Escudie, J.; Couret, C.; Satge, J. Synth. React. Inorg. Met.-Org. Chem. 1995, 25, 575.

    Google Scholar 

  15. Sheldrick, G.M.; Dauter, Z.; Wilson, K.S.; Hope, H.; Sieker, L.C. Acta Crystallogr. D 1993, 49, 18.

    PubMed  Google Scholar 

  16. Sheldrick, G. M. SHELXL97, Program for the Refinement of Crystal Structures; University of Gottingen: Germany, 1997.

    Google Scholar 

  17. Karczmarzyk, Z.; Mojzych, M.; Rykowski, A. J. Chem. Crystallogr. 2000, 30, 423.

    Google Scholar 

  18. Knjazhanski, S.Y.; Moreno, G.; Cadenas, G.; Belsky, V.K.; Bulychev, B.M. Tetrahedron 1999, 55, 1639.

    Google Scholar 

  19. Zaitseva, G.S.; Karlov, S.S.; Siggelkow, B.A.; Avtomonov, E.V.; Churakov, A.V.; Howard, J.A.K.; Lorberth, J. Z. Naturforsch, B: Chem. Sci. 1998, 53, 1247.

    Google Scholar 

  20. Rengstl, A.; Schuber, U. Chem. Ber. 1980, 113, 278.

    Google Scholar 

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Correspondence to Jason S. Overby.

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Overby, J.S., Woofter, R.T., Rheingold, A.L. et al. The synthesis and structural characterization of silyl-substituted fluorenes. Journal of Chemical Crystallography 33, 357–364 (2003). https://doi.org/10.1023/A:1024221928841

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  • DOI: https://doi.org/10.1023/A:1024221928841

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