On the syntheses, NMR spectroscopic and structural characterisations of [CuL(C2H4)]center dot PF6 and [Cu2L2(mu-C4H6)]center dot 2PF(6): L = (+/-)-N,N '-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane

Michael J. Bainbridge; John R. Lindsay Smith; Paul H. Walton

doi:10.1039/b813329h

On the syntheses, NMR spectroscopic and structural characterisations of [CuL(C2H4)]center dot PF6 and [Cu2L2(mu-C4H6)]center dot 2PF(6): L = (+/-)-N,N '-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane

Michael J. Bainbridge, John R. Lindsay Smith, Paul H. Walton

Chemistry

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

Abstract

Copper(I) (+/-)-N,N'-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane reacts with either ethene or butadiene to give the corresponding alkene complexes. In each case crystallographic studies show that the alkene coordinates in an eta(2) fashion. In the butadiene complex a dimer is formed where the butadiene bridges two copper complexes. Variable temperature NMR spectroscopy of the ethene adduct demonstrates fluxional behaviour, which is attributed to the rotation of the coordinated ethene relative to the complex, Delta G(255)(double dagger) = 50 +/- 2 kJ mol(-1).

Original language	English
Pages (from-to)	3143-3152
Number of pages	10
Journal	Dalton Transactions
Volume	38
Issue number	17
DOIs	https://doi.org/10.1039/b813329h
Publication status	Published - 2009

Keywords

UNSATURATED SMALL MOLECULES
COPPER(I) ETHYLENE COMPLEX
OLEFIN COMPLEXES
AZIRIDINATION
CATALYSTS
STEREOSELECTIVITY
MECHANISM
LIGANDS
ALKENES

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10.1039/b813329h

http://pubs.rsc.org/en/Content/ArticleLanding/2009/DT/b813329h

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title = "On the syntheses, NMR spectroscopic and structural characterisations of [CuL(C2H4)]center dot PF6 and [Cu2L2(mu-C4H6)]center dot 2PF(6): L = (+/-)-N,N '-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane",

abstract = "Copper(I) (+/-)-N,N'-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane reacts with either ethene or butadiene to give the corresponding alkene complexes. In each case crystallographic studies show that the alkene coordinates in an eta(2) fashion. In the butadiene complex a dimer is formed where the butadiene bridges two copper complexes. Variable temperature NMR spectroscopy of the ethene adduct demonstrates fluxional behaviour, which is attributed to the rotation of the coordinated ethene relative to the complex, Delta G(255)(double dagger) = 50 +/- 2 kJ mol(-1).",

keywords = "UNSATURATED SMALL MOLECULES, COPPER(I) ETHYLENE COMPLEX, OLEFIN COMPLEXES, AZIRIDINATION, CATALYSTS, STEREOSELECTIVITY, MECHANISM, LIGANDS, ALKENES",

author = "Bainbridge, {Michael J.} and Smith, {John R. Lindsay} and Walton, {Paul H.}",

year = "2009",

doi = "10.1039/b813329h",

language = "English",

volume = "38",

pages = "3143--3152",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "The Royal Society of Chemistry",

number = "17",

}

On the syntheses, NMR spectroscopic and structural characterisations of [CuL(C2H4)]center dot PF6 and [Cu2L2(mu-C4H6)]center dot 2PF(6): L = (+/-)-N,N '-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane. / Bainbridge, Michael J.; Smith, John R. Lindsay; Walton, Paul H.
In: Dalton Transactions, Vol. 38, No. 17, 2009, p. 3143-3152.

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

TY - JOUR

T1 - On the syntheses, NMR spectroscopic and structural characterisations of [CuL(C2H4)]center dot PF6 and [Cu2L2(mu-C4H6)]center dot 2PF(6)

T2 - L = (+/-)-N,N '-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane

AU - Bainbridge, Michael J.

AU - Smith, John R. Lindsay

AU - Walton, Paul H.

PY - 2009

Y1 - 2009

N2 - Copper(I) (+/-)-N,N'-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane reacts with either ethene or butadiene to give the corresponding alkene complexes. In each case crystallographic studies show that the alkene coordinates in an eta(2) fashion. In the butadiene complex a dimer is formed where the butadiene bridges two copper complexes. Variable temperature NMR spectroscopy of the ethene adduct demonstrates fluxional behaviour, which is attributed to the rotation of the coordinated ethene relative to the complex, Delta G(255)(double dagger) = 50 +/- 2 kJ mol(-1).

AB - Copper(I) (+/-)-N,N'-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane reacts with either ethene or butadiene to give the corresponding alkene complexes. In each case crystallographic studies show that the alkene coordinates in an eta(2) fashion. In the butadiene complex a dimer is formed where the butadiene bridges two copper complexes. Variable temperature NMR spectroscopy of the ethene adduct demonstrates fluxional behaviour, which is attributed to the rotation of the coordinated ethene relative to the complex, Delta G(255)(double dagger) = 50 +/- 2 kJ mol(-1).

KW - UNSATURATED SMALL MOLECULES

KW - COPPER(I) ETHYLENE COMPLEX

KW - OLEFIN COMPLEXES

KW - AZIRIDINATION

KW - CATALYSTS

KW - STEREOSELECTIVITY

KW - MECHANISM

KW - LIGANDS

KW - ALKENES

UR - http://www.scopus.com/inward/record.url?scp=64549123467&partnerID=8YFLogxK

U2 - 10.1039/b813329h

DO - 10.1039/b813329h

M3 - Article

SN - 1477-9226

VL - 38

SP - 3143

EP - 3152

JO - Dalton Transactions

JF - Dalton Transactions

IS - 17

ER -

On the syntheses, NMR spectroscopic and structural characterisations of [CuL(C2H4)]center dot PF6 and [Cu2L2(mu-C4H6)]center dot 2PF(6): L = (+/-)-N,N '-bis(2,4,6-trimethylbenzylidene)-1,2-diaminocyclohexane

Abstract

Keywords

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