Zwitterionic biscyclopentadienyl complexes

Details Zwitterionic biscyclopentadienyl complexes Zwitterionic biscyclopentadienyl complexes

1995-06-07

1996-06-18

Nazario-Gonzales, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 11, 556 2, 556 28, 556 53, 502152, 502158, 526134, 526160, 526162, 526348, 526943, C07F 1700, C07F 700, B01J 3100

Patent

active

055279295

ABSTRACT:
Zwitterionic biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes useful as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

REFERENCES:
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Organometallics, "1,3-Diene Complexes fo Zirconium and Hafnium Prepared by the Reaction of Enediylmagniesium with MCl.sub.2 Cp.sub.2." Yasuda, et al, 1982, 1, pp. 388-396.
Acc. Chem. Res., "Unique Chemical Behavior and Bonding of Early-Transition-Metal-Diene Complexes" Yasuda, et al., 1985, 18, pp. 120-126.
Advances in Organometallic Chemistry, "The Remarkable Features of (n.sup.4 -Conjugated Diene) Zirconocene and hafnocene Complexes" Erker, et al., 1985, vol. 24, pp. 1-39.
Chem. Ber., "Seven-Membered Heterodimetallic Ring Systems from (Conjugated Diene) Group 4 Metallocene Complexes and Organoaluminium Reagents" Erker et al., 1994, 127, pp. 127, pp 805-811.
Organometallics, Spaleck et al., 1994, 13, pp. 954-963.
U.S. Ser. No. 08/082,197, filed Jun. 24, 1993 (C-41,350) (DeVore et al.).
U.S. Ser. No. 08/230,051, filed Apr. 19, 1994 (C-41,350A) (DeVore et al. ).
U.S. Ser. No. 08/241,523, filed May 12, 1994 (C-41,350B) (DeVore et al.).

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