Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Synthesis and Structural Characterization of Novel Organohydroborate Hafnocene Complex (η5-C5H5)2Hf{(μ-H)2BC8H14)}Cl

  • Chung, Jang-Hoon (Department of Chemistry and Department of Nano Science and Engineering, Myongji University) ;
  • Lee, Sang-Mock (Materials Center, Samsung Advanced Institute of Technology)
  • Published : 2006.05.20
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Abstract

The compound B(C6F5)3 and its variations have been widely employed as alkyl carbanion abstracting reagents to produce metallocene cations for olefin polymerization.1-3 Weakly coordinating anions containing boron can greatly improve the activity of metallocene catalysts used in industrial olefin polymerization4 and thus group IV and V metallocene complexes of the organohydroborate anions have been intensively investigated.5 Recently, many organohydroborate metallocene complexes have been reported by Shore and co-workers.6-8 A common structural feature of those complexes is the three-center two electron M-H-B bond, like that observed in transition metal tetrahydroborate complexes but the reactivity and fluxional behavior of organohydroborate complexes are unlike those of the tetrahydroborate analogues.6 Although many of those metallocenes have been synthesized, few complexes could be used in the olefin polymerization and then this laboratory has been involved in the chemistry of the cyclic organohydroborate anions, and their group IV metallocene derivatives for the catalyst.9 Described here is recent work that led to the preparation of a novel cyclic organohydroborate hafnocene complex (h5-C5H5)2Hf ？(μ-H)2BC8H14 ,Cl. The hafnocene complex contains the three-center two electron bond Hf-H-B10 in which the hydride abstraction for olefin polymerization may occur.

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References

  1. Chen, E. Y.-X.; Marks, T. J. Chem. Rev. 2000, 100, 1391 https://doi.org/10.1021/cr980462j
  2. Chen, E. Y.-X.; Abboud, K. A. Organometallics 2000, 19, 5541 https://doi.org/10.1021/om000866d
  3. Abbenhuis, H. C. L. Angew. Chem., Int. Ed. 1999, 38, 1058 https://doi.org/10.1002/(SICI)1521-3773(19990419)38:8<1058::AID-ANIE1058>3.0.CO;2-8
  4. Mcknibht, A. L.; Waymouth, R. M. Chem. Rev. 1998, 98, 2587 https://doi.org/10.1021/cr940442r
  5. Kaminsky, W. J. Chem. Soc., Dalton Trans. 1998, 1413
  6. LaPointe, R. E.; Roof, G. R.; Abboud, K. A.; Klosin, J. J. Am.Chem. Soc. 2000, 122, 9560 https://doi.org/10.1021/ja002664e
  7. Choukroun, R.; Douziech, B.;Donnadieu, B. Organometallics 1997, 16, 5517 https://doi.org/10.1021/om9701736
  8. Liu, F.-C.; Du, B.; Liu, J.; Meyers, E. A.; Shore, S. G. Inorg.Chem. 1999, 38, 3228 https://doi.org/10.1021/ic990221+
  9. Chen, X.; Lim, S.; Plecnik, C. E.; Liu, S.; Meyers, E. A.;Shore, S. G. Inorg. Chem. 2004, 43, 692 https://doi.org/10.1021/ic030249s
  10. White, J. P., III;Deng, H.; Shore, S. G. Inorg. Chem. 1991, 30, 2337 https://doi.org/10.1021/ic00010a022
  11. Liu, S.; Liu, F.-C.; Renkes, G.; Shore, S. G. Organometallics 2001, 20, 5717 https://doi.org/10.1021/om0107744
  12. Liu, F.-C.; Liu, J.; Meyers, E. A.; Shore, S. G.J. Am. Chem. Soc. 2000, 122, 6106 https://doi.org/10.1021/ja001056w
  13. Jordan, G. T.; Liu, F.-C.; Shore, S. G. Inorg. Chem. 1997, 36, 5597 https://doi.org/10.1021/ic970758s
  14. Chung, J.-H.; Shore, S. G. Bull. Korean Chem. Soc. 2005, 26, 707 https://doi.org/10.5012/bkcs.2005.26.5.707
  15. Chung, J.-H.; Shore, S. G. Bull. Korean Chem. Soc. 2005, 26, 1447 https://doi.org/10.1007/s11814-009-0251-2
  16. Baker, R. T.; Ovenall, D. W.; Calabrese, J. C.; Westcott, S. A.;Taylor, N. J.; William, I. D.; Marder, T. B. J. Am. Chem. Soc.1990, 112, 9399 https://doi.org/10.1021/ja00181a055
  17. Koster, R.; Seidel, G. Inorg. Synth. 1983, 22, 198
  18. Otwinowski, Z.; Minor, W. Processing of X-ray Diffraction DataCollected in Oscillation Modein Macromolecular Crystallo-graphy, Part A; Carter, C. W., Jr., Sweet, R. M., Eds.; Methods in Enzymology 276; Academic Press: New York, 1997; pp 307-326
  19. Blessing, R. H. Acta Crystallogr., Sect. A 1995, 51, 33 https://doi.org/10.1107/S0108767394005726
  20. Blessing, R. H. J. Appl. Crystallogr. 1997, 30, 421 https://doi.org/10.1107/S0021889896014628
  21. Mackay, S.; Gilmore, C. J.; Edwards, C.; Tremayne, M.; Stuart,N.; Shankland, K. MaXus: A Computer Program for the Solutionand Refinement of Crystal Structures from Diffraction Data;University of Glasgow, Scotland; Nonius BV: Delft, The Netherlands and Mac-Science Co. Ltd.: Yokohama, Japan, 1998
  22. Sheldrick, G. M. SHELXL-97: A Structure Solution and Refinement Program;University of Gottingen: Germany, 1998
  23. Ho, N. N.; Bau, R.; Plecnik, C. E.; Shore, S. G.; Wang, X.;Schultz, A. J. J. Organomet. Chem. 2002, 654, 216 https://doi.org/10.1016/S0022-328X(02)01318-9
  24. Chini, R.; Longoni, G.; Albano, V. G. Adv. Organomet. Chem.1976, 14, 285 https://doi.org/10.1016/S0065-3055(08)60655-3
  25. Chini, P. J. Organomet. Chem. 1980, 200, 37 https://doi.org/10.1016/S0022-328X(00)88636-2
  26. Chen, X.; Liu, S.; Plecnik, C.; Liu, F.-C.; Fraenkel, G.; Shore, S.G. Organometallics 2003, 22, 275 https://doi.org/10.1021/om0206249
  27. James, B. D.; Nanda, R. K.; Wallbridge, M. G. H. Inorg. Chem. 1964, 3, 1798
  28. Frost, P. W.; Howard, J. A. K.; Spencer, J. L. J. Chem. Soc.,Chem. Commun.1984, 1362
  29. Baker, M. V.; Field, L. D. J. Chem. Soc., Chem. Commun. 1984, 996
  30. Esteruelas, M. A.;Jean, Y.; Lledos, A.; Oro, L. A.; Ruiz, N.; Volatron, F. Inorg.Chem.1994, 33, 3609 https://doi.org/10.1021/ic00094a028

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