Chemical control of spin propagation between heterometallic rings

Thomas B. Faust; Valerio Bellini; Andrea Candini; Stefano Carretta; Giulia Lorusso; David R. Allan; Laura Carthy; David Collison; Rebecca J. Docherty; Jasbinder Kenyon; John MacHin; Eric J L McInnes; Christopher A. Muryn; Harriott Nowell; Robin G. Pritchard; Simon J. Teat; Grigore A. Timco; Floriana Tuna; George F S Whitehead; Wolfgang Wernsdorfer; Marco Affronte; Richard E P Winpenny

doi:10.1002/chem.201101785

Chemical control of spin propagation between heterometallic rings

Thomas B. Faust, Valerio Bellini, Andrea Candini, Stefano Carretta, Giulia Lorusso, David R. Allan, Laura Carthy, David Collison, Rebecca J. Docherty, Jasbinder Kenyon, John MacHin, Eric J L McInnes, Christopher A. Muryn, Harriott Nowell, Robin G. Pritchard, Simon J. Teat, Grigore A. Timco, Floriana Tuna, George F S Whitehead, Wolfgang WernsdorferMarco Affronte, Richard E P Winpenny

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

Abstract

We present a synthetic, structural, theoretical, and spectroscopic study of a family of heterometallic ring dimers which have the formula [{Cr 7NiF3(Etglu)(O2CtBu)15} 2(NLN)], in which Etglu is the pentadeprotonated form of the sugar N-ethyl-D-glucamine, and NLN is an aromatic bridging diimine ligand. By varying NLN we are able to adjust the strength of the interaction between rings with the aim of understanding how to tune our system to achieve weak magnetic communication between the spins, a prerequisite for quantum entanglement. Micro-SQUID and EPR data reveal that the magnetic coupling between rings is partly related to the through-bond distance between the spin centers, but also depends on spin-polarization mechanisms and torsion angles between aromatic rings. Density functional theory (DFT) calculations allow us to make predictions of how such chemically variable parameters could be used to tune very precisely the interaction in such systems. For possible applications in quantum information processing and molecular spintronics, such precise control is essential. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original language	English
Pages (from-to)	14020-14030
Number of pages	10
Journal	Chemistry - A European Journal
Volume	17
Issue number	50
DOIs	https://doi.org/10.1002/chem.201101785
Publication status	Published - 9 Dec 2011

Keywords

chromium
EPR spectroscopy
heterometallic dimers
magnetic properties
metallacycles

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10.1002/chem.201101785

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Faust, T. B., Bellini, V., Candini, A., Carretta, S., Lorusso, G., Allan, D. R., Carthy, L., Collison, D., Docherty, R. J., Kenyon, J., MacHin, J., McInnes, E. J. L., Muryn, C. A., Nowell, H., Pritchard, R. G., Teat, S. J., Timco, G. A., Tuna, F., Whitehead, G. F. S., ... Winpenny, R. E. P. (2011). Chemical control of spin propagation between heterometallic rings. Chemistry - A European Journal, 17(50), 14020-14030. https://doi.org/10.1002/chem.201101785

@article{f0039a5e6d824e37a7c53c9bcf66fab8,

title = "Chemical control of spin propagation between heterometallic rings",

abstract = "We present a synthetic, structural, theoretical, and spectroscopic study of a family of heterometallic ring dimers which have the formula [{Cr 7NiF3(Etglu)(O2CtBu)15} 2(NLN)], in which Etglu is the pentadeprotonated form of the sugar N-ethyl-D-glucamine, and NLN is an aromatic bridging diimine ligand. By varying NLN we are able to adjust the strength of the interaction between rings with the aim of understanding how to tune our system to achieve weak magnetic communication between the spins, a prerequisite for quantum entanglement. Micro-SQUID and EPR data reveal that the magnetic coupling between rings is partly related to the through-bond distance between the spin centers, but also depends on spin-polarization mechanisms and torsion angles between aromatic rings. Density functional theory (DFT) calculations allow us to make predictions of how such chemically variable parameters could be used to tune very precisely the interaction in such systems. For possible applications in quantum information processing and molecular spintronics, such precise control is essential. {\textcopyright} 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

keywords = "chromium, EPR spectroscopy, heterometallic dimers, magnetic properties, metallacycles",

author = "Faust, {Thomas B.} and Valerio Bellini and Andrea Candini and Stefano Carretta and Giulia Lorusso and Allan, {David R.} and Laura Carthy and David Collison and Docherty, {Rebecca J.} and Jasbinder Kenyon and John MacHin and McInnes, {Eric J L} and Muryn, {Christopher A.} and Harriott Nowell and Pritchard, {Robin G.} and Teat, {Simon J.} and Timco, {Grigore A.} and Floriana Tuna and Whitehead, {George F S} and Wolfgang Wernsdorfer and Marco Affronte and Winpenny, {Richard E P}",

note = "Times Cited: 0",

year = "2011",

month = dec,

day = "9",

doi = "10.1002/chem.201101785",

language = "English",

volume = "17",

pages = "14020--14030",

journal = "Chemistry: A European Journal ",

issn = "0947-6539",

publisher = "John Wiley & Sons Ltd",

number = "50",

}

Faust, TB, Bellini, V, Candini, A, Carretta, S, Lorusso, G, Allan, DR, Carthy, L, Collison, D, Docherty, RJ, Kenyon, J, MacHin, J, McInnes, EJL, Muryn, CA, Nowell, H, Pritchard, RG, Teat, SJ, Timco, GA, Tuna, F, Whitehead, GFS, Wernsdorfer, W, Affronte, M & Winpenny, REP 2011, 'Chemical control of spin propagation between heterometallic rings', Chemistry - A European Journal, vol. 17, no. 50, pp. 14020-14030. https://doi.org/10.1002/chem.201101785

TY - JOUR

T1 - Chemical control of spin propagation between heterometallic rings

AU - Faust, Thomas B.

AU - Bellini, Valerio

AU - Candini, Andrea

AU - Carretta, Stefano

AU - Lorusso, Giulia

AU - Allan, David R.

AU - Carthy, Laura

AU - Collison, David

AU - Docherty, Rebecca J.

AU - Kenyon, Jasbinder

AU - MacHin, John

AU - McInnes, Eric J L

AU - Muryn, Christopher A.

AU - Nowell, Harriott

AU - Pritchard, Robin G.

AU - Teat, Simon J.

AU - Timco, Grigore A.

AU - Tuna, Floriana

AU - Whitehead, George F S

AU - Wernsdorfer, Wolfgang

AU - Affronte, Marco

AU - Winpenny, Richard E P

N1 - Times Cited: 0

PY - 2011/12/9

Y1 - 2011/12/9

N2 - We present a synthetic, structural, theoretical, and spectroscopic study of a family of heterometallic ring dimers which have the formula [{Cr 7NiF3(Etglu)(O2CtBu)15} 2(NLN)], in which Etglu is the pentadeprotonated form of the sugar N-ethyl-D-glucamine, and NLN is an aromatic bridging diimine ligand. By varying NLN we are able to adjust the strength of the interaction between rings with the aim of understanding how to tune our system to achieve weak magnetic communication between the spins, a prerequisite for quantum entanglement. Micro-SQUID and EPR data reveal that the magnetic coupling between rings is partly related to the through-bond distance between the spin centers, but also depends on spin-polarization mechanisms and torsion angles between aromatic rings. Density functional theory (DFT) calculations allow us to make predictions of how such chemically variable parameters could be used to tune very precisely the interaction in such systems. For possible applications in quantum information processing and molecular spintronics, such precise control is essential. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

AB - We present a synthetic, structural, theoretical, and spectroscopic study of a family of heterometallic ring dimers which have the formula [{Cr 7NiF3(Etglu)(O2CtBu)15} 2(NLN)], in which Etglu is the pentadeprotonated form of the sugar N-ethyl-D-glucamine, and NLN is an aromatic bridging diimine ligand. By varying NLN we are able to adjust the strength of the interaction between rings with the aim of understanding how to tune our system to achieve weak magnetic communication between the spins, a prerequisite for quantum entanglement. Micro-SQUID and EPR data reveal that the magnetic coupling between rings is partly related to the through-bond distance between the spin centers, but also depends on spin-polarization mechanisms and torsion angles between aromatic rings. Density functional theory (DFT) calculations allow us to make predictions of how such chemically variable parameters could be used to tune very precisely the interaction in such systems. For possible applications in quantum information processing and molecular spintronics, such precise control is essential. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KW - chromium

KW - EPR spectroscopy

KW - heterometallic dimers

KW - magnetic properties

KW - metallacycles

UR - https://www.ccdc.cam.ac.uk/structures/search?id=doi:10.5517/ccv6j2m&sid=DataCite

U2 - 10.1002/chem.201101785

DO - 10.1002/chem.201101785

M3 - Article

VL - 17

SP - 14020

EP - 14030

JO - Chemistry: A European Journal

JF - Chemistry: A European Journal

SN - 0947-6539

IS - 50

ER -

Chemical control of spin propagation between heterometallic rings

Abstract

Keywords

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CCDC 827100: Experimental Crystal Structure Determination

CCDC 789802: Experimental Crystal Structure Determination

CCDC 827104: Experimental Crystal Structure Determination

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Chemical control of spin propagation between heterometallic rings

Abstract

Keywords

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Datasets

CCDC 827100: Experimental Crystal Structure Determination

CCDC 789802: Experimental Crystal Structure Determination

CCDC 827104: Experimental Crystal Structure Determination

Cite this