Activation of [Cp2ZrMe2] with new perfluoroaryl diboranes: Solution chemistry and ethylene polymerization behavior in the presence of MeAl(BHT)2

Angewandte Chemie - International Edition

Volumn 38, Issue 24, 1999, Pages 3695-3698

  Williams, V Clifford ^b   Dai, Chaoyang ^a   Li, Zengmin ^a   Collins, Scott ^a   Piers, Warren E ^b   Clegg, William ^c   Elsegood, Mark R J ^c   Marder, Todd B ^d  

^a UNIVERSITY OF WATERLOO   (Canada)

^b UNIVERSITY OF CALGARY   (Canada)

^c NEWCASTLE UNIVERSITY   (United Kingdom)

^d DURHAM UNIVERSITY   (United Kingdom)

Author keywords

Boranes; Fluorine; Metallocenes; Polymerizations

Indexed keywords

BORANE DERIVATIVE; ETHYLENE;

ARTICLE; CHEMICAL ANALYSIS; CHEMICAL BINDING; CHEMICAL INTERACTION; CHEMICAL REACTION; CHEMICAL STRUCTURE; CRYSTAL STRUCTURE; POLYMERIZATION; REACTION ANALYSIS;

EID: 0033576717     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19991216)38:24<3695::AID-ANIE3695>3.0.CO;2-E     Document Type: Article

References (32)

1. a) L. Li, T. J. Marks, Organometallics 1998, 17, 3996;
2. b) Y.-X. Chen, C. L. Stern, S. Yang, T. J. Marks, J. Am. Chem. Soc. 1996, 118, 12451;
3. c) D. J. Parks, W. E. Piers, G. P. A. Yap, Organometallics 1998, 17, 5442;
4. d) A. G. Massey, A. J. Park, J. Organomet. Chem. 1964, 2, 245.
5. a) Y.-X. Chen, C. L. Stern, T. J. Marks J. Am. Chem. Soc. 1997, 119, 2582;
6. b) M. Bochmann, M. J. Sarsfield, Organometallics 1998, 17, 5908.
7. a) Y.-X. Chen, M. V. Metz, L. Li, C. L. Stern, T. J. Marks, J. Am. Chem. Soc. 1998, 120, 6287, and references therein;
8. b) R. E. v. H. Spence, W. E. Piers, Y. Sun, M. Parvez, L. R. MacGillivray, M. J. Zaworotko, Organometallics 1998, 17, 2459.
9. a) P. A. Deck, C. L. Beswick, T. J. Marks, J. Am. Chem. Soc. 1998, 120, 1772, and references therein;
10. b) Y. Sun, R. E. v. H. Spence, W. E. Piers, M. Parvez, G. P. A. Yap, J. Am. Chem. Soc. 1997, 119, 5132;
11. c) L. Luo, T. J. Marks, Top. Catal. 1999, 7, 97.
12. a) L. Jia, X. Yang, C. L. Stern, T. J. Marks, Organometallics 1994, 13, 3755;
13. b) T. J. Marks, L. Jia, X. Yang (Northwestern University), US Patent 5447895, 1995.
14. V. C. Williams, W. E. Piers, W. Clegg, M. R. J. Elsegood, S. Collins, T. B. Marder, J. Am. Chem. Soc. 1999, 121, 3244.
15. Y. Sun, W. E. Piers, M. Parvez, Can. J. Chem. 1998, 76, 513.
16. a) M. V. Metz, D. J. Schwartz, C. L. Beswick, C. L. Stern, T. J. Marks, Inorganic Abstracts of the 217th ACS National Meeting (Anaheim, CA), 1999, abstract no. 15;
17. b) M. H. Mcadon, P.N. Nickias, T. J. Marks, D. J. Swartz (Northwestern University and the Dow Chemical Co.) WO 99/06413, 1999.
18. M. D. Healey, D. A. Wierda, A. R. Barron, Organometallics 1988, 7, 2543.
19. 2] and methylaluminoxane (MAO) in ethylene polymerizations and as a cocatalyst in styrene polymerizations using Ti - alkoxide initiators has been reported: a) S.S. Reddy, S. Shashidhar, S. Sivaram, Macromolecules 1993, 26, 1180;
20. 2Al(BHT) and related compounds as scrubbing agents, see R. K. Rosen, J. C. Stevens, J. C. Tracy (Dow Chemical Co.). WO 97/27228, 1997.
21. R. Andersen, Inorg. Chem. 1979, 18, 1724.
22. A. D. Horton, J. de With, Organometallics 1997, 16, 5424.
23. -3. Crystallographic data (excluding structure factors) for the structure reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication no. CCDC-127481. Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (fax: (+44) 1223-336-033; email: deposit@ccdc.cam.ac.uk.
24. J. R. Galsworthy, M. L. H. Green, N. Maxted, M. Müller, J. Chem. Soc. Dalton Trans. 1998, 387.
25. a) M. Bochmann, S. L. Lancaster, Angew. Chem. 1994, 106, 1715; Angew. Chem. Int. Ed. Engl. 1994, 33, 1634;
26. a) M. Bochmann, S. L. Lancaster, Angew. Chem. 1994, 106, 1715; Angew. Chem. Int. Ed. Engl. 1994, 33, 1634;
27. b) X. Yang, C. L. Stern, T. J. Marks, Organometallics 1991, 10, 840;
28. c) S. Beck, M.-H. Prosenc, H. H. Brintzinger, R. Goretzki, N. Herfert, G. Fink, J. Mol. Catal. A 1996, 111, 67;
29. d) K. Köhler, W. E. Piers, S. Xin, Y. Feng, A. M. Bravakis, A. P. Jarvis, S. Collins, W. Clegg, G. P. A. Yap, T. B. Marder, Orgamometallics 1998, 17, 3557.
30. C. H. Lee, S. J. Lee, J. W. Park, K. H. Kim, B. Y. Lee, J. S. Oh, J. Mol. Catal. A 1998, 132, 231.
31. 8]toluene. For quantitative studies on Me exchange between alkylmetallocenes and MAD in toluene, see A. R. Siedle, R. A. Newmarks, W. M. Lamanna, J. N. Schroepfer, Polyhedron 1990, 9, 301.
32. 2] and 1 in bromobenzene revealed the presence of weak crosspeaks between the ZrMe resonance and the neutral BMe resonance of the major counteranion, suggesting slow Me exchange under these conditions. The limited solubility of this ion pair in toluene precluded analogous experiments in this solvent.