Dimetallacyclobutadiene derivatives: Catalysts or catalyst precursors for the ROMP of norbornene?

N. W. Eilerts; J. A. Heppert; M. D. Morton

doi:10.1016/0304-5102(92)80154-9

Dimetallacyclobutadiene derivatives: Catalysts or catalyst precursors for the ROMP of norbornene?

N. W. Eilerts, J. A. Heppert, M. D. Morton

Research and Innovation

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Abstract

Metallacyclobutadiene complexes with the formula (Me₃SiCH₂)₄M₂(μ-CSiMe₃)₂ (M = Ta or W) induce the ring-opening metathesis polymerization (ROMP) of norbornene. The tungsten compound acts as a stand-alone catalyst, polymerizing norbornene with a first-order dependence on both W₂ and monomer. In contrast, the tantalum complex requires oxygen as an initiator, and generates an as yet undefined catalyst that shows a zero-order dependence on the monomer concentration.

Original language	English
Pages (from-to)	157-163
Number of pages	7
Journal	Journal of Molecular Catalysis
Volume	76
Issue number	1-3
DOIs	https://doi.org/10.1016/0304-5102(92)80154-9
State	Published - Oct 15 1992

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title = "Dimetallacyclobutadiene derivatives: Catalysts or catalyst precursors for the ROMP of norbornene?",

abstract = "Metallacyclobutadiene complexes with the formula (Me3SiCH2)4M2(μ-CSiMe3)2 (M = Ta or W) induce the ring-opening metathesis polymerization (ROMP) of norbornene. The tungsten compound acts as a stand-alone catalyst, polymerizing norbornene with a first-order dependence on both W2 and monomer. In contrast, the tantalum complex requires oxygen as an initiator, and generates an as yet undefined catalyst that shows a zero-order dependence on the monomer concentration.",

author = "Eilerts, {N. W.} and Heppert, {J. A.} and Morton, {M. D.}",

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T1 - Dimetallacyclobutadiene derivatives

T2 - Catalysts or catalyst precursors for the ROMP of norbornene?

AU - Eilerts, N. W.

AU - Heppert, J. A.

AU - Morton, M. D.

PY - 1992/10/15

Y1 - 1992/10/15

N2 - Metallacyclobutadiene complexes with the formula (Me3SiCH2)4M2(μ-CSiMe3)2 (M = Ta or W) induce the ring-opening metathesis polymerization (ROMP) of norbornene. The tungsten compound acts as a stand-alone catalyst, polymerizing norbornene with a first-order dependence on both W2 and monomer. In contrast, the tantalum complex requires oxygen as an initiator, and generates an as yet undefined catalyst that shows a zero-order dependence on the monomer concentration.

AB - Metallacyclobutadiene complexes with the formula (Me3SiCH2)4M2(μ-CSiMe3)2 (M = Ta or W) induce the ring-opening metathesis polymerization (ROMP) of norbornene. The tungsten compound acts as a stand-alone catalyst, polymerizing norbornene with a first-order dependence on both W2 and monomer. In contrast, the tantalum complex requires oxygen as an initiator, and generates an as yet undefined catalyst that shows a zero-order dependence on the monomer concentration.

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U2 - 10.1016/0304-5102(92)80154-9

DO - 10.1016/0304-5102(92)80154-9

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SP - 157

EP - 163

JO - Journal of Molecular Catalysis

JF - Journal of Molecular Catalysis

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