Toward Single-Site, Immobilized Molecular Catalysts: Site-Isolated Ti Ethylene Polymerization Catalysts Supported on Porous Silica

Journal of the American Chemical Society

Volumn 126, Issue 10, 2004, Pages 3052-3053

  McKittrick, Michael W ^a   Jones, Christopher W ^a  

^a Georgia Institute of Technology   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ETHYLENE; METAL COMPLEX; SILICON DIOXIDE;

ARTICLE; CATALYST; COMPLEX FORMATION; METHODOLOGY; MOLECULAR DYNAMICS; MOLECULAR MECHANICS; POLYMERIZATION; POROSITY; STEREOCHEMISTRY; SYNTHESIS;

EID: 1642391614     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja031725g     Document Type: Article

References (15)

1. Hartley, F. R. Supported Metal Complexes: A New Generation of Catalysts; Dordrecht, Boston, 1995.
2. Britovsek, G. J. P.; Gibson, V.; Wass, D. F. Angew. Chem., Int. Ed. 1999, 38, 428.
3. Hlatkey, G. G. Chem. Rev. 2000, 100, 1347.
4. Well-characterized, well-behaved oxide-supported transition metal complex catalysts are rare, see, for example, early transition metals: (a) Nicholas, C. P.; Ahn, H. S.; Marks, T. J. J. Am. Chem. Soc. 2003, 125, 4325.
5. Late transition metals: (b) Jones, M. D.; Raja, R.; Thomas, J. M.; Johnson, B. F. G.; Lewis, D. W.; Rouzaud, J.; Harris, K. D. M. Angew. Chem., Int. Ed. 2003, 42, 4326.
6. Surface organometallic chemistry: (c) Coperet, C.; Chabanas, M.; Saint-Arroman, R. P.; Basset, J. M. Angew. Chem., Int. Ed. 2003, 42, 156.
7. The catalysts are referred to here as "CGC-inspired" because there is no direct evidence here or elsewhere6.7.9 that the immobilized catalysts have the same structure as homogeneous CGC catalysts.
8. Galan-Fereres, M.; Koch, T.; Hey-Hawkins, E.; Eisen, M. S. J. Organomet. Chem. 1999, 580, 145.
9. (a) Juvaste, H.; Iiskola, E. I.; Pakkanen, T. T. J. Organomet. Chem. 1999, 587, 38.
10. (b) Juvaste, H.; Pakkanen, T. T.; Iiskola, E. I. Organometallics 2000, 19, 4834.
11. (c) Juvaste, H.; Pakkanen, T. T.; Iiskola, E. I. Organometallics 2000, 19, 1729.
12. (d) Juvaste, H.; Iiskola, E. I.; Pakkanen, T. T. J. Mol. Catal. A 1999, 150, 1.
13. (a) McKittrick, M. W.; Jones, C. W. Chem. Mater. 2003, 15, 1132.
14. (b) The amine scaffolds behave chemically as if they are site-isolated. However, it has not been proven that every amine site is isolated.
15. Additional metalation strategies could be employed: Kasi, R. M.; Coughlin, E. B. Organometallics 2003, 22, 1534.