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Why are the {Cu4N4} rings in copper(I) phosphinimide clusters [Cu{μ-N=PR3}]4 (R = NMe3 or Ph) planar?

Robinson, T.P.; Price, R.D.; Davidson, M.G.; Fox, M.A.; Johnson, A.L.

Why are the {Cu4N4} rings in copper(I) phosphinimide clusters [Cu{μ-N=PR3}]4 (R = NMe3 or Ph) planar? Thumbnail


Authors

T.P. Robinson

R.D. Price

M.G. Davidson

A.L. Johnson



Abstract

The copper phosphinimide complexes [Cu{μ-N[double bond, length as m-dash]PR3}]4 (1, R = NMe2 and 2, R = Ph) were obtained in good yields from the reactions of Cu[Mes] (Mes = mesityl, C6H2Me3-2,4,6) with the corresponding iminophosphoranes, HNPR3. The molecular structures of 1 and 2 reveal the presence of planar eight-membered {Cu4N4} rings which contrasts with the saddle-shaped {M4N4} rings found in related metal phosphinimide complexes. According to computations, there is negligible aromaticity in the planar {Cu4N4} rings in 1 and 2 and the saddle shape observed in related {M4N4} rings is due to steric factors.

Citation

Robinson, T., Price, R., Davidson, M., Fox, M., & Johnson, A. (2015). Why are the {Cu4N4} rings in copper(I) phosphinimide clusters [Cu{μ-N=PR3}]4 (R = NMe3 or Ph) planar?. Dalton Transactions, 44(12), 5611-5619. https://doi.org/10.1039/c5dt00255a

Journal Article Type Article
Acceptance Date Feb 12, 2015
Publication Date Mar 28, 2015
Deposit Date Mar 3, 2015
Publicly Available Date Mar 28, 2024
Journal Dalton Transactions
Print ISSN 1477-9226
Electronic ISSN 1477-9234
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 44
Issue 12
Pages 5611-5619
DOI https://doi.org/10.1039/c5dt00255a

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Copyright Statement
This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.





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