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Volumn 25, Issue 11, 2006, Pages 2833-2850

Diversity in weakly coordinating anions. mono- and polynuclear halo(perfluoroaryl)metalates as cocatalysts for stereospecific olefin polymerization: Synthesis, structure, and reactivity

Author keywords

[No Author keywords available]

Indexed keywords

COCATALYSTS; FLUORIDE ABSTRACTION; STEREOSPECIFIC OLEFIN POLYMERIZATION;

EID: 33745757475     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om0508334     Document Type: Article
Times cited : (54)

References (106)
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    • Reference 2f
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    • note
    • 2 (2, R* = (1R,2S,5R)-trans-5-methyl-cis-2-(2-propyl) cyclohexyl; ( - )-menthyl) will be published elsewhere (Roberts, J. A. S.; Chen, M.-C. C.; Marks, T. J. Manuscript in preparation).
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    • Direct NMR observation of mononuclear and dinuclear catalyst polymeryl species suggests that the concentration of methyl-bridged dinuclear species can diminish in the presence of olefin and that such species may constitute resting states under certain conditions; see: Tritto, I.; Donetti, R.; Sacchi, M. C.; Locatelli, P.; Zannoni, G. Macromolecules 1999, 32, 264-269.
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    • For covalent radii
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    • A neutral, structurally asymmetric (fluoro)borabicyclononane dimer with one tetrahedral B and one planar B atom has also been reported: Koster, R.; Schussler, W.; Boese, R. Chem. Ber. 1990, 123, 1945.
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    • A similar M-F-M-F-M arrangement has been observed in a Bi system. For a recent review of such metal fluorides, see: Roesky, H. W.; Haiduc, I. J. Chem. Soc., Dalton Trans. 1999, 14, 2249-2264.
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    • note
    • 8 at 23°C are as follows: δ -120.72 (s, 3 F, F-3), -139.52 (s, 3 F, F-6), -141.48 (s, 6 F, F-2′VF-6′), -156.55 (t, 3 F, F-4), -157.22 (s, 3 F, F-4′), -158.46 (t, 3 F, F-5), -165.20 (s, 6 F, F-37F-5′), -175.02 (s, br, 1 F, Al-F).
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    • The Al-F-Al bond angle in both complexes is ∼180°. (a) For R = Me: Allegra, G.; Perego, G. Acta Crystallogr. 1963, 16, 185.
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    • Pure orange complex 20 can be isolated; however, thermal decomposition in the solid state slowly occurs at room temperature.
    • Pure orange complex 20 can be isolated; however, thermal decomposition in the solid state slowly occurs at room temperature.
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    • - has been characterized (PPN = bis-(triphenylphosphine)nitrogen). See the following, for example, (a) R = tert-butyl, see: Harlan, C. J.; Bott. S. G.; Barron, A. R. J. Am. Chem. Soc. 1995, 117, 6465-6474.
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    • 3, see
    • 3, see:
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    • See ref 30a for examples of nonlinear fluoro-bridged Ga complexes
    • (b) See ref 30a for examples of nonlinear fluoro-bridged Ga complexes.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.