Nature of the initiation, propagation, and chain transfer steps during the formation of ethylene oligomers catalyzed by PdMe2(N,N,N′,N′-tetramethylethylenediamine)/B(C 6F5)3

Organometallics

Volumn 17, Issue 12, 1998, Pages 2382-2384

  Desjardins, Sylvie Y ^a   Way, Alison A ^a   Murray, Michael C ^a   Adirim, Dan ^a   Baird, Michael C ^a  

^a QUEEN S UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001202994     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om971060p     Document Type: Article

References (36)

1. (a) Killian, C. M.; Tempel, D. J.; Johnson, L. K.; Brookhart, M. J. Am. Chem. Soc. 1996, 118, 11664.
2. (b) Johnson, L. K.; Mecking, S.; Brookhart, M. J. Am. Chem. Soc. 1996, 118, 267.
3. (c) Johnson, L. K.; Killian, K. M.; Brookhart, M. J. Am.Chem. Soc. 1995, 117, 6414.
4. (d) McLain, S. J.; McCord, E. F.; Johnson, L. K.; Ittel, S. D.; Nelson, S. D.; Halfhill, A. M. J.; Teasley, M. F.; Tempel, D. J.; Killian, C.; Brookhart, M. S. Polym. Prepr. (Am. Chem. Soc. Div. Polym. Chem.) 1997, 38, 772.
5. Deng, L.; Woo, T. K.; Cavallo, L.; Margl, P. M.; Ziegler, T. J. Am. Chem. Soc. 1997, 119, 6177.
6. (b) Deng, L.; Margl, P.; Ziegler, T. J. Am. Chem. Soc. 1997, 119, 1094.
7. (c) Froese, R. D. J.; Musaev, D. G.; Morokuma, K. J. Am. Chem. Soc. 1997, 119, 1581.
8. (d) Strömberg, S.; Zetterberg, K.; Siegbahn, P. E. M. J. Chem. Soc., Dalton Trans. 1997, 4147.
9. (a) De Graaf, W.; Boersma, J.; Smeets, W. J. J.; Spek, A. L.; van Koten, G. Organometallics 1989, 8, 2907.
10. 2 hydrogens occurs to give a singlet at δ 2.49 (298 K).
11. See, for instance: (a) Jia, L.; Yang, X.; Stern, C. L.; Marks, T. J. Organometallics 1997, 16, 842. (b) Giardello, M. A.; Eisen, M. S.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1995, 117, 12114. (c) Wang, Q.; Quyoum, R.; Gillis, D. J.; Jeremic, D.; Baird, M. C. J. Organomet. Chem. 1997, 527, 7. (d) Sarsfield, M. J.; Ewart, S. W.; Tremblay, T. L.; Baird, M. C. J. Chem. Soc., Dalton Trans. 1997, 3097.
12. See, for instance: (a) Jia, L.; Yang, X.; Stern, C. L.; Marks, T. J. Organometallics 1997, 16, 842. (b) Giardello, M. A.; Eisen, M. S.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1995, 117, 12114. (c) Wang, Q.; Quyoum, R.; Gillis, D. J.; Jeremic, D.; Baird, M. C. J. Organomet. Chem. 1997, 527, 7. (d) Sarsfield, M. J.; Ewart, S. W.; Tremblay, T. L.; Baird, M. C. J. Chem. Soc., Dalton Trans. 1997, 3097.
13. See, for instance: (a) Jia, L.; Yang, X.; Stern, C. L.; Marks, T. J. Organometallics 1997, 16, 842. (b) Giardello, M. A.; Eisen, M. S.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1995, 117, 12114. (c) Wang, Q.; Quyoum, R.; Gillis, D. J.; Jeremic, D.; Baird, M. C. J. Organomet. Chem. 1997, 527, 7. (d) Sarsfield, M. J.; Ewart, S. W.; Tremblay, T. L.; Baird, M. C. J. Chem. Soc., Dalton Trans. 1997, 3097.
14. See, for instance: (a) Jia, L.; Yang, X.; Stern, C. L.; Marks, T. J. Organometallics 1997, 16, 842. (b) Giardello, M. A.; Eisen, M. S.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1995, 117, 12114. (c) Wang, Q.; Quyoum, R.; Gillis, D. J.; Jeremic, D.; Baird, M. C. J. Organomet. Chem. 1997, 527, 7. (d) Sarsfield, M. J.; Ewart, S. W.; Tremblay, T. L.; Baird, M. C. J. Chem. Soc., Dalton Trans. 1997, 3097.
15. (a) Axelson, D. E.; Levy, G. C.; Mandelkern, L. Macromolecules 1979, 12, 41.
16. (b) Cheng, H. N.; Smith, D. A. Macromolecules 1986, 19, 2065.
17. (c) Cheng, H. N.; Lee, G. H. J. Polym. Sci. Part B Polym. Phys. 1987, 25, 2355.
18. (d) Hansen, E. W.; Blom, R.; Bade, O. Polymer 1997, 38, 4295.
19. (e) McCord, E. F.; Shaw, W. H. J.; Hutchinson, R. A. Macromolecules 1997, 30, 246.
20. (f) Kolbert, A. C.; Didier, J. J. Polym. Sci., Part B: Polym. Phys. 1997, 35, 1955.
21. (g) Kolbert, A. C.; Didier, J. G.; Xu, L. Macromolecules 1996, 29, 8591.
22. (h) Randall, J. C.; Ruff, C. J.; Kelchtermans, M. Recl. Trav. Chim. Pays-Bas 1991, 110, 543.
23. (i) Usami, T.; Shigeru, T. Macromolecules 1984, 17, 1756.
24. 13C FT NMR Spectra 1st ed.; Aldrich Chemical Co: Milwaukee, WI, 1993.
25. (a) Wojcinski, L. M.; Getzie, J.; Sen, A. Polym. Prepr. (Am. Chem. Soc., Div. Polym. Chem.) 1997, 38 (2), 273.
26. 1H NMR spectra exhibit broad olefinic resonances at ca. δ 5.2. Wojcinski, L. M.; Getzie, J.; Sen, A. Abstracts of Papers, 214th National Meeting of the American Chemical Society, Las Vegas, NV, Fall 1997; Div. of Polym. Sci., paper 0096.
27. (c) Aspects of this work were reported after submission of this communication, see: Kim, J. S.; Pawlow, J. H.; Wojcinski, L. M.; Murtuza, S.; Kacker, S.; Sen, A. J. Am. Chem. Soc. 1998, 120, 1932.
28. For similar cationic ethylene complexes, see: (a) Rix, F. C.; Brookhart, M.; White, P. S. J. Am. Chem. Soc. 1996, 118, 4746. (b) Hill, G. S.; Rendina, L. M.; Puddephatt, R. J. J. Chem. Soc., Dalton Trans. 1996, 1809. (c) On addition of 2.5/1 ethylene/Pd at 193 K, the NMR spectrum of the TMEDA complex exhibited only a single, exchange-broadened olefin resonance at δ 4.65.
29. For similar cationic ethylene complexes, see: (a) Rix, F. C.; Brookhart, M.; White, P. S. J. Am. Chem. Soc. 1996, 118, 4746. (b) Hill, G. S.; Rendina, L. M.; Puddephatt, R. J. J. Chem. Soc., Dalton Trans. 1996, 1809. (c) On addition of 2.5/1 ethylene/Pd at 193 K, the NMR spectrum of the TMEDA complex exhibited only a single, exchange-broadened olefin resonance at δ 4.65.
30. For similar cationic ethylene complexes, see: (a) Rix, F. C.; Brookhart, M.; White, P. S. J. Am. Chem. Soc. 1996, 118, 4746. (b) Hill, G. S.; Rendina, L. M.; Puddephatt, R. J. J. Chem. Soc., Dalton Trans. 1996, 1809. (c) On addition of 2.5/1 ethylene/Pd at 193 K, the NMR spectrum of the TMEDA complex exhibited only a single, exchange-broadened olefin resonance at δ 4.65.
31. (a) Zambelli, A.; Ammendola, P.; Grassi, A.; Longo, P.; Proto, A. Macromolecules 1986, 19, 2703.
32. (b) Zambelli, A.; Sacchi, M. C.; Locatelli, P.; Zannoni, G. Macromolecules 1982, 15, 211.
33. (c) Zambelli, A.; Locatelli, P.; Sacchi, M. C.; Rigamonti, E. Macromolecules 1980, 13, 798.
34. (d) Tritto, I.; Li, S. X.; Boggioni, L.; Sacchi, M. C.; Locatelli, P.; O'Neil, A. Macromol. Chem. Phys. 1997, 198, 1347.
35. (e) Longo, P.; Grassi, A.; Pellecchia, C.; Zambelli, A. Macromolecules 1987, 20, 1015.
36. HC 125 Hz), resulting from decomposition, was also observed, but the intensity of this resonance remained constant during warming of the sample to 263 K.