Dinuclear phosphido- and arsenido-bridged early/late transition metal complexes. Efficient catalysts for ethylene polymerization

Frank Lindenberg; Tal Shribman; Joachim Sieler; Evamarie Hey-Hawkins; Moris S. Eisen

doi:10.1016/0022-328X(95)06060-A

Dinuclear phosphido- and arsenido-bridged early/late transition metal complexes. Efficient catalysts for ethylene polymerization

Frank Lindenberg, Tal Shribman, Joachim Sieler, Evamarie Hey-Hawkins, Moris S. Eisen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

The reaction of (η⁵-C₅H₅)₂Zr{P(SiMe₃)₂}₂ with Ni(CO)₄ yields the heterodinuclear phosphido-bridged complex (η⁵-C₅H₅)₂Zr{μ-P(SiMe₃)₂}₂Ni(CO)₂ (1). 1 was characterised spectroscopically and by X-ray structure determination. The central four-membered ZrP₂Ni ring is slightly puckered (dihedral angle between planes ZrP₂/NiP₂ = 1.8°). The Zr-P bond lengths are equivalent (Zr-P1 2.655(1), Zr-P2 2.652(1) Å), as are the Ni-P bond lengths (Ni-P1 2.264(1), Ni-P2 2.266(1) Å). The long Zr ⋯ Ni distance of 3.038(1) Å indicates the absence of a metal-metal bond. The heterodinuclear phosphido- and arsenido-bridged complexes (η⁵-C₅H₅)₂Zr{μ-E(SiMe₃)₂}₂M(CO)_n [E = P; M(CO)_n = Ni(CO)₂ (1) or Mo(CO)₄ (2); and E = As, M(CO)_n = Cr(CO)₄ (3)] react rapidly with methylaluminoxane, yielding catalytically active complexes which rival the known cationic systems for the polymerization of ethylene.

Original language	English
Pages (from-to)	19-25
Number of pages	7
Journal	Journal of Organometallic Chemistry
Volume	515
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-328X(95)06060-A
State	Published - 31 May 1996
Externally published	Yes

Keywords

Crystal structure
Early/late heterodinuclear phosphide- and arsenido-bridged complexes
Ethylene polymerization
Zirconocene

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10.1016/0022-328X(95)06060-A

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title = "Dinuclear phosphido- and arsenido-bridged early/late transition metal complexes. Efficient catalysts for ethylene polymerization",

abstract = "The reaction of (η5-C5H5)2Zr{P(SiMe3)2}2 with Ni(CO)4 yields the heterodinuclear phosphido-bridged complex (η5-C5H5)2Zr{μ-P(SiMe3)2}2Ni(CO)2 (1). 1 was characterised spectroscopically and by X-ray structure determination. The central four-membered ZrP2Ni ring is slightly puckered (dihedral angle between planes ZrP2/NiP2 = 1.8°). The Zr-P bond lengths are equivalent (Zr-P1 2.655(1), Zr-P2 2.652(1) {\AA}), as are the Ni-P bond lengths (Ni-P1 2.264(1), Ni-P2 2.266(1) {\AA}). The long Zr ⋯ Ni distance of 3.038(1) {\AA} indicates the absence of a metal-metal bond. The heterodinuclear phosphido- and arsenido-bridged complexes (η5-C5H5)2Zr{μ-E(SiMe3)2}2M(CO)n [E = P; M(CO)n = Ni(CO)2 (1) or Mo(CO)4 (2); and E = As, M(CO)n = Cr(CO)4 (3)] react rapidly with methylaluminoxane, yielding catalytically active complexes which rival the known cationic systems for the polymerization of ethylene.",

keywords = "Crystal structure, Early/late heterodinuclear phosphide- and arsenido-bridged complexes, Ethylene polymerization, Zirconocene",

author = "Frank Lindenberg and Tal Shribman and Joachim Sieler and Evamarie Hey-Hawkins and Eisen, {Moris S.}",

year = "1996",

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doi = "10.1016/0022-328X(95)06060-A",

language = "英语",

volume = "515",

pages = "19--25",

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TY - JOUR

T1 - Dinuclear phosphido- and arsenido-bridged early/late transition metal complexes. Efficient catalysts for ethylene polymerization

AU - Lindenberg, Frank

AU - Shribman, Tal

AU - Sieler, Joachim

AU - Hey-Hawkins, Evamarie

AU - Eisen, Moris S.

PY - 1996/5/31

Y1 - 1996/5/31

N2 - The reaction of (η5-C5H5)2Zr{P(SiMe3)2}2 with Ni(CO)4 yields the heterodinuclear phosphido-bridged complex (η5-C5H5)2Zr{μ-P(SiMe3)2}2Ni(CO)2 (1). 1 was characterised spectroscopically and by X-ray structure determination. The central four-membered ZrP2Ni ring is slightly puckered (dihedral angle between planes ZrP2/NiP2 = 1.8°). The Zr-P bond lengths are equivalent (Zr-P1 2.655(1), Zr-P2 2.652(1) Å), as are the Ni-P bond lengths (Ni-P1 2.264(1), Ni-P2 2.266(1) Å). The long Zr ⋯ Ni distance of 3.038(1) Å indicates the absence of a metal-metal bond. The heterodinuclear phosphido- and arsenido-bridged complexes (η5-C5H5)2Zr{μ-E(SiMe3)2}2M(CO)n [E = P; M(CO)n = Ni(CO)2 (1) or Mo(CO)4 (2); and E = As, M(CO)n = Cr(CO)4 (3)] react rapidly with methylaluminoxane, yielding catalytically active complexes which rival the known cationic systems for the polymerization of ethylene.

AB - The reaction of (η5-C5H5)2Zr{P(SiMe3)2}2 with Ni(CO)4 yields the heterodinuclear phosphido-bridged complex (η5-C5H5)2Zr{μ-P(SiMe3)2}2Ni(CO)2 (1). 1 was characterised spectroscopically and by X-ray structure determination. The central four-membered ZrP2Ni ring is slightly puckered (dihedral angle between planes ZrP2/NiP2 = 1.8°). The Zr-P bond lengths are equivalent (Zr-P1 2.655(1), Zr-P2 2.652(1) Å), as are the Ni-P bond lengths (Ni-P1 2.264(1), Ni-P2 2.266(1) Å). The long Zr ⋯ Ni distance of 3.038(1) Å indicates the absence of a metal-metal bond. The heterodinuclear phosphido- and arsenido-bridged complexes (η5-C5H5)2Zr{μ-E(SiMe3)2}2M(CO)n [E = P; M(CO)n = Ni(CO)2 (1) or Mo(CO)4 (2); and E = As, M(CO)n = Cr(CO)4 (3)] react rapidly with methylaluminoxane, yielding catalytically active complexes which rival the known cationic systems for the polymerization of ethylene.

KW - Crystal structure

KW - Early/late heterodinuclear phosphide- and arsenido-bridged complexes

KW - Ethylene polymerization

KW - Zirconocene

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U2 - 10.1016/0022-328X(95)06060-A

DO - 10.1016/0022-328X(95)06060-A

M3 - 文章

AN - SCOPUS:0030607955

SN - 0022-328X

VL - 515

SP - 19

EP - 25

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 1-2

ER -

Dinuclear phosphido- and arsenido-bridged early/late transition metal complexes. Efficient catalysts for ethylene polymerization

Abstract

Keywords

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