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Volumn 43, Issue 17, 2004, Pages 2234-2239

Stereospecific polymerization of isoprene with molecular and MCM-48-grafted lanthanide(III) tetraalkylaluminates

Author keywords

Lanthanides; Mesoporous materials; Neodymium; Polymerization; Ziegler catalysts

Indexed keywords

CATALYSTS; COMPLEXATION; GRAFTING (CHEMICAL); POLYMERIZATION; POLYMERS;

EID: 4544351220     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200352730     Document Type: Article
Times cited : (158)

References (38)
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    • (Eds.: K. A. Gschneidner, Jr., L. Fleming), Elsevier Science Publishers, Dordrecht, chap. 61
    • a) Z. Shen, J. Ouyang in Handbook on the Physics and Chemistry of Rare Earth (Eds.: K. A. Gschneidner, Jr., L. Fleming), Elsevier Science Publishers, Dordrecht, 1987, chap. 61;
    • (1987) Handbook on the Physics and Chemistry of Rare Earth
    • Shen, Z.1    Ouyang, J.2
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    • b) W. T. Klooster, R. S. Lu, R. Anwander, W. J. Evans, T. F. Koetzle, R. Bau, Angew. Chem. 1998, 110, 1326; Angew. Chem. Int. Ed. 1998, 37, 1268;
    • (1998) Angew. Chem. Int. Ed. , vol.37 , pp. 1268
  • 15
    • 4544239270 scopus 로고    scopus 로고
    • note
    • -3 for Z = 8.
  • 16
    • 4544316635 scopus 로고    scopus 로고
    • note
    • 1H NMR spectroscopy showed that signals assignable to a "YEt" species were also present.
  • 29
    • 0032473440 scopus 로고    scopus 로고
    • c) L. K. Van Looveren, D. F. M. C. Geysen, K. A. L. Vercruysse, B. H. J. Wouters, P. J. Grobet, P. A. Jacobs, Angew. Chem. 1998, 110, 540; Angew. Chem. Int. Ed. 1998, 37, 517;
    • (1998) Angew. Chem. Int. Ed. , vol.37 , pp. 517
  • 35
    • 4544388488 scopus 로고    scopus 로고
    • -3 for Z = 4. Data were collected at. 123 K on a Nonius Kappa-CCD system. The structure was solved by Patterson methods, and least-square refinement of the model based on 6359 (all data) and 5491 reflections (I> 2.0σ(1)) converged to a final wR2 = 0.0654 and R1 = 0.0263, respectively. All hydrogen atoms of the methyl groups-bonded to aluminum were found in the difference Fourier maps and allowed to refine freely. All of the other hydrogen atoms were placed in calculated positions (riding model). CCDC-226742 (9a) contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/ conts/retrieving.html (or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB21EZ, UK; fax: (+44) 1223-336-033; or deposit@ ccdc.cam.ac.uk).
  • 38
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    • 4)], La-C 2.742(2)-2.992(5) Å, W. J. Evans, R. Anwander, R. J. Doedens, J. W. Ziller, Angew. Chem. 1994, 106, 1725; Angew. Chem. Int. Ed. Engl. 1994, 33, 1641.
    • (1994) Angew. Chem. Int. Ed. Engl. , vol.33 , pp. 1641


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.