A Trimeric, Chair-Shaped Zinc Dialkylphosphine Complex: Synthesis and Structure of {[Zn(Et)(μPCy2)]3·THF}·2THF [Cy = Cyclohexyl (C6H11)]

Andrew J. Edwards; Michael A. Paver; Paul R. Raithby; Christopher A. Russell; Dominic S. Wright

doi:10.1021/om00035a067

A Trimeric, Chair-Shaped Zinc Dialkylphosphine Complex: Synthesis and Structure of {[Zn(Et)(μPCy₂)]₃·THF}·2THF [Cy = Cyclohexyl (C₆H₁₁)]

Andrew J. Edwards, Michael A. Paver, Paul R. Raithby, Christopher A. Russell, Dominic S. Wright

University of Cambridge

Research output: Contribution to journal › Comment/debate › peer-review

Abstract

Metalation of dicyclohexylphosphine (Cy₂PH) with ZnEt₂ (1:1 equiv) in THF gives a trimeric zinc dialkylphosphine complex {[Zn(Et)(μ-PCy₂)] ₃·THF}· 2THF (1), which has been characterized by elemental analyses, ¹H NMR, ³¹PNMR, and IR spectroscopic data and by a low temperature X-ray structural study. The complex crystallizes in the triclinic space group P1̅ (No. 2) with cell dimensions a = 13.059(3) Å, b = 13.889(3) Å, c = 18.635(3) Å, α = 75.98(3)°, β = 85.45(3)°, γ = 64.37-(3)°, V = 2955.4(11) Å³, and Z = 2. The complex has a chair-shaped Zn₃P₃ core in which only one tetrahedral Zn center is coordinated by THF and the other two planar Zn centers are three coordinate. Two uncoordinated THF molecules reside in the lattice of 1. The title compound is a rare example of a zinc dialkyl- or diarylphosphine complex and the first such trimeric complex.

Original language	English
Pages (from-to)	4687-4690
Number of pages	4
Journal	Organometallics
Volume	12
Issue number	11
DOIs	https://doi.org/10.1021/om00035a067
Publication status	Published - 1 Nov 1993

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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@article{ecfd11eede054020a9ff7e7efcc7ae60,

title = "A Trimeric, Chair-Shaped Zinc Dialkylphosphine Complex: Synthesis and Structure of {[Zn(Et)(μPCy2)]3·THF}·2THF [Cy = Cyclohexyl (C6H11)]",

abstract = "Metalation of dicyclohexylphosphine (Cy2PH) with ZnEt2 (1:1 equiv) in THF gives a trimeric zinc dialkylphosphine complex {[Zn(Et)(μ-PCy2)] 3·THF}· 2THF (1), which has been characterized by elemental analyses, 1H NMR, 31PNMR, and IR spectroscopic data and by a low temperature X-ray structural study. The complex crystallizes in the triclinic space group P1̅ (No. 2) with cell dimensions a = 13.059(3) {\AA}, b = 13.889(3) {\AA}, c = 18.635(3) {\AA}, α = 75.98(3)°, β = 85.45(3)°, γ = 64.37-(3)°, V = 2955.4(11) {\AA}3, and Z = 2. The complex has a chair-shaped Zn3P3 core in which only one tetrahedral Zn center is coordinated by THF and the other two planar Zn centers are three coordinate. Two uncoordinated THF molecules reside in the lattice of 1. The title compound is a rare example of a zinc dialkyl- or diarylphosphine complex and the first such trimeric complex.",

author = "Edwards, {Andrew J.} and Paver, {Michael A.} and Raithby, {Paul R.} and Russell, {Christopher A.} and Wright, {Dominic S.}",

year = "1993",

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doi = "10.1021/om00035a067",

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T1 - A Trimeric, Chair-Shaped Zinc Dialkylphosphine Complex

T2 - Synthesis and Structure of {[Zn(Et)(μPCy2)]3·THF}·2THF [Cy = Cyclohexyl (C6H11)]

AU - Edwards, Andrew J.

AU - Paver, Michael A.

AU - Raithby, Paul R.

AU - Russell, Christopher A.

AU - Wright, Dominic S.

PY - 1993/11/1

Y1 - 1993/11/1

N2 - Metalation of dicyclohexylphosphine (Cy2PH) with ZnEt2 (1:1 equiv) in THF gives a trimeric zinc dialkylphosphine complex {[Zn(Et)(μ-PCy2)] 3·THF}· 2THF (1), which has been characterized by elemental analyses, 1H NMR, 31PNMR, and IR spectroscopic data and by a low temperature X-ray structural study. The complex crystallizes in the triclinic space group P1̅ (No. 2) with cell dimensions a = 13.059(3) Å, b = 13.889(3) Å, c = 18.635(3) Å, α = 75.98(3)°, β = 85.45(3)°, γ = 64.37-(3)°, V = 2955.4(11) Å3, and Z = 2. The complex has a chair-shaped Zn3P3 core in which only one tetrahedral Zn center is coordinated by THF and the other two planar Zn centers are three coordinate. Two uncoordinated THF molecules reside in the lattice of 1. The title compound is a rare example of a zinc dialkyl- or diarylphosphine complex and the first such trimeric complex.

AB - Metalation of dicyclohexylphosphine (Cy2PH) with ZnEt2 (1:1 equiv) in THF gives a trimeric zinc dialkylphosphine complex {[Zn(Et)(μ-PCy2)] 3·THF}· 2THF (1), which has been characterized by elemental analyses, 1H NMR, 31PNMR, and IR spectroscopic data and by a low temperature X-ray structural study. The complex crystallizes in the triclinic space group P1̅ (No. 2) with cell dimensions a = 13.059(3) Å, b = 13.889(3) Å, c = 18.635(3) Å, α = 75.98(3)°, β = 85.45(3)°, γ = 64.37-(3)°, V = 2955.4(11) Å3, and Z = 2. The complex has a chair-shaped Zn3P3 core in which only one tetrahedral Zn center is coordinated by THF and the other two planar Zn centers are three coordinate. Two uncoordinated THF molecules reside in the lattice of 1. The title compound is a rare example of a zinc dialkyl- or diarylphosphine complex and the first such trimeric complex.

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DO - 10.1021/om00035a067

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A Trimeric, Chair-Shaped Zinc Dialkylphosphine Complex: Synthesis and Structure of {[Zn(Et)(μPCy₂)]₃·THF}·2THF [Cy = Cyclohexyl (C₆H₁₁)]

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