Synthesis and structure of zirconium and hafnium polymerisation catalysts stabilised by very bulky aminopyridinato ligands

European Journal of Inorganic Chemistry

Volumn , Issue 32, 2008, Pages 5088-5098

  Noor, Awal ^a   Kretschmer, Winfried P ^b   Glatz, Germund ^a   Meetsma, Auke ^b   Kempe, Rhett ^a  

^a UNIVERSITY OF BAYREUTH   (Germany)

^b UNIVERSITY OF GRONINGEN   (Netherlands)

Author keywords

Aminopyridinato ligands; Copolymerisation; Ethylene polymerisation; Hafnium; N ligands; Zirconium; Zwitterionic complexes

Indexed keywords

CATALYSTS; CHELATION; ETHYLENE; HAFNIUM; HAFNIUM COMPOUNDS; MOLECULAR WEIGHT; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; POLYMERIZATION; PROPYLENE; SINGLE CRYSTALS; SYNTHESIS (CHEMICAL); TEMPERATURE; X RAY DIFFRACTION ANALYSIS;

AMINOPYRIDINATO LIGAND; BENZYL GROUP; COPOLYMERISATION; ETHYLENE POLYMERIZATION; HIGH MOLECULAR WEIGHT POLYETHYLENES; N LIGANDS; N-LIGANDS; PHENYL RINGS; POLYMERIZATION CATALYSTS; ZWITTERIONIC COMPLEXES;

LIGANDS;

EID: 56349119442     PISSN: 14341948     EISSN: 10990682     Source Type: Journal    
DOI: 10.1002/ejic.200800580     Document Type: Article

References (46)

1. K. Kincaid, C. P. Gerlach, G. R. Giesbrecht, J. R. Hagadorn, G. D. Whitener, A. Shafir, J. Arnold, Organometallics 1999, 18, 5360-5366.
2. a) D. Wood, G. P. A. Yap, D. S. Richeson, Inorg. Chem. 1999, 38, 5788-5794;
3. b) G. R. Giesbrecht, G. D. Whitener, J. Arnold, Organometallics 2000, 19, 2809-2812.
4. B. Qian, W. J. Scanlon IV, M. R. Smith III, D. H. Motry, Organometallics 1999, 18, 1693-1698.
5. G. R. Giesbrecht, A. Shafir, J. Arnold, Chem. Commun. 2000, 21, 2135-2136.
6. M. J. Scott, S. J. Lippard, Inorg. Chim. Acta 1997, 263, 287-299.
7. H. Lee, R. F. Jordan, J. Am. Chem. Soc. 2005, 127, 9384-9385.
8. For review on aminopyridinato ligands see: R. Kempe, Eur. J. Inorg. Chem. 2003, 791-803.
9. a) M. Oberthür, G. Hillebrand, P. Arndt, R. Kempe, Chem. Ber./Recueil 1997, 130, 789-794;
10. b) R. Kempe, A. Spannenberg, S. Brenner, Z. Kristallogr. 1996, 211, 497-498;
11. c) R. Kempe, A. Spannenberg, S. Brenner, Z. Kristallogr. 1996, 211, 499-500;
12. d) R. Kempe, A. Spannenberg, S. Brenner, Z. Kristallogr. 1996, 211, 569-570;
13. e) R. Kempe, G. Hillebrand, Z. Kristallogr. 2003, 218, 569-570;
14. f) C. Morton, P. O'Shaughnessy, P. Brenner, P. Arndt, Organometallics 1996, 15, 1071-1074;
15. h) H. Fuhrmann, S. Brenner, P. Arndt, R. Kempe, Inorg. Chem. 1996, 35, 6742-6745;
16. i) E. J. Crust, I. J. Munslow, C. Morton, P. Scott, Dalton Trans. 2004, 15, 2257-2266;
17. j) E. J. Crust, A. J. Clarke, R. J. Deeth, C. Morton, P. Scott, Dalton Trans. 2004, 23, 4050-4058;
18. k) M. Polamo, M. Leskelä, J. Chem. Soc., Dalton Trans. 1996, 23, 4345-4349;
19. l) C. Jones, P. C. Junk, S. J. Leary, N. A. Smithies, Inorg. Chem. Commun. 2003, 6, 1126-1128;
20. m) W. P. Kretschmer, B. Hessen, A. Noor, N. M. Scott, R. Kempe, J. Organomet. Chem. 2007, 692, 4569-4579.
21. a) M. Polamo, I. Multikainen, M. Leskela, Acta Chem. Scand. 1996, 52, 1348-1350;
22. b) M. Polamo, M. Leskela, Acta Chem. Scand. 1997, 51, 69-72.
23. For selected reviews on amidinate coordination chemistry see: a) J. Barker, M. Kilner, Coord. Chem. Rev. 1994, 133, 219-300;
24. b) F. T. Edelmann, Coord. Chem. Rev. 1994, 137, 403-481;
25. c) N. Nagashima, H. Kondo, T. Hayashida, Y. Yamaguchi, M. Gondo, S. Masuda, K. Miyazaki, K. Matsubara, K. Kirchner, Coord. Chem. Rev. 2003, 245, 177-190.
26. For selected reviews on NacNac coordination chemistry see: a) L. Kakaliou, W. J. Scanlon IV, B. Qian, S. W. Baek, M. R. Smith III, D. H. Motry, Inorg. Chem. 1999, 38, 5964-5977;
27. b) B. Qian, W. J. Scanlon IV, M. R. Smith III, D. H. Motry, Organometallics 1999, 18, 1693-1698;
28. c) L. Bourget-Merle, M. F. Lappert, J. R. Severn, Chem. Rev. 2002, 102, 3031-3065.
29. H. M. Hoyt, F. E. Michael, R. G. Bergman, J. Am. Chem. Soc. 2004, 126, 1018-1019.
30. N. M. Scott, T. Schareina, O. Tok, R. Kempe, Eur. J. Inorg. Chem. 2004, 3297-3304.
31. W. P. Kretschmer, A. Meetsma, B. Hessen, S. Qayyum, T. Schmalz, R. Kempe, Chem. Eur. J. 2006, 12, 8969-8978.
32. T. Schmalz, J. Burkhardt, T. Irrgang, R. Kempe, Z. Kristallogr. NCS. 2005, 220, 405-406.
33. Averaged Zr-C bond length for Zr-methyl moieties (316 observations) is 2.310 Å and the corresponding Hf value (64 observations) is 2.283 Å.
34. S. Deeken, G. Motz, R. Kempe, Z. Anorg. Allg. Chem. 2007, 633, 320-325.
35. a) A. D. Horton, J. de With, A. J. van der Linden, H. van de Weg, Organometallics 1996, 15, 2672-2674;
36. b) A. D. Horton, J. de With, Chem. Commun. 1996, 1375-1376;
37. c) C. Pellecchia, A. Immirzi, A. Grassi, A. Zambelli, Organometallics 1993, 12, 4473-4478;
38. d) C. Pellecchia, A. Immirzi, D. Pappalardo, A. Peluso, Organometallics 1994, 13, 3773-3775;
39. e) C. Pellecchia, A. Grassi, A. Immirzi, J. Am. Chem. Soc. 1993, 115, 1160-1162;
40. f) C. Pellecchia, A. Grassi, A. Zambelli, J. Mol. Catal. 1993, 82, 57-65.
41. J. F. van Baar, P. A. Schut, A. D. Horton, O. T. Dall, G. M. M. van Kessel, World Pat. Appl. WO 2000035974 A1, Montell Techn. Co., 2000.
42. U. Zucchini, E. Abizzati, U. Giannini, J. Organomet. Chem. 1971, 26, 357-372.
43. SMART, SAINT, SADABS, XPREP and SHELXTL/NT. Area Detector Control and Integration Software, Smart Apex Software Reference Manuals, Bruker Analytical X-ray Instruments, Inc., Madison, Wisconsin, USA, 2000.
44. A. Altomare, M. C. Burla, M. Camalli, G. L. Cascarano, C. Giacovazzo, A. Guagliardi, A. G. G. Moliterni, G. Polidori, R. Spagna, J. Appl. Crystallogr. 1999, 32, 115-119.
45. G. M. Sheldrick, SHELX97 Programs for Crystal Structure Analysis (rel. 97-2), Institut für Anorganische Chemie der Universität, Tammannstrasse 4, 3400 Göttingen, Germany, 1998.
46. L. J. Farrugia, J. Appl. Crystallogr. 1999, 32, 837-838.