An in situ electrochemical cell for Q- and W-band EPR spectroscopy

Paul R. Murray; David Collison; Simon Daff; Nicola Austin; Ruth Edge; Brian W. Flynn; Lorna Jack; Fanny Leroux; Eric J. L. McInnes; Alan Murray; Daniel Sells; Tom Stevenson; Joanna Wolowska; Lesley J. Yellowlees

doi:10.1016/j.jmr.2011.09.041

An in situ electrochemical cell for Q- and W-band EPR spectroscopy

Paul R. Murray, David Collison, Simon Daff, Nicola Austin, Ruth Edge, Brian W. Flynn, Lorna Jack, Fanny Leroux, Eric J. L. McInnes, Alan Murray, Daniel Sells, Tom Stevenson, Joanna Wolowska, Lesley J. Yellowlees

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

Abstract / Description of output

A simple design for an in situ, three-electrode spectroelectrochemical cell is reported that can be used in commercial Q- and W-band (ca. 34 and 94 GHz, respectively) electron paramagnetic resonance (EPR) spectrometers, using standard sample tubing (1.0 and 0.5 mm inner diameter, respectively) and within variable temperature cryostat systems. The use of the cell is demonstrated by the in situ generation of organic free radicals (quinones and diimines) in fluid and frozen media, transition metal ion radical anions, and on the enzyme nitric oxide synthase reductase domain (NOSrd), in which a pair of flavin radicals are generated.

Original language	English
Pages (from-to)	206-209
Number of pages	4
Journal	Journal of Magnetic Resonance
Volume	213
Issue number	1
DOIs	https://doi.org/10.1016/j.jmr.2011.09.041
Publication status	Published - Dec 2011

Keywords / Materials (for Non-textual outputs)

Spectroelectrochemistry
EPR
ESR
High frequency EPR
Bipyridines
Flavins

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10.1016/j.jmr.2011.09.041

http://www.sciencedirect.com/science/article/pii/S1090780711003703

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title = "An in situ electrochemical cell for Q- and W-band EPR spectroscopy",

abstract = "A simple design for an in situ, three-electrode spectroelectrochemical cell is reported that can be used in commercial Q- and W-band (ca. 34 and 94 GHz, respectively) electron paramagnetic resonance (EPR) spectrometers, using standard sample tubing (1.0 and 0.5 mm inner diameter, respectively) and within variable temperature cryostat systems. The use of the cell is demonstrated by the in situ generation of organic free radicals (quinones and diimines) in fluid and frozen media, transition metal ion radical anions, and on the enzyme nitric oxide synthase reductase domain (NOSrd), in which a pair of flavin radicals are generated.",

keywords = "Spectroelectrochemistry, EPR, ESR, High frequency EPR, Bipyridines, Flavins",

author = "Murray, {Paul R.} and David Collison and Simon Daff and Nicola Austin and Ruth Edge and Flynn, {Brian W.} and Lorna Jack and Fanny Leroux and McInnes, {Eric J. L.} and Alan Murray and Daniel Sells and Tom Stevenson and Joanna Wolowska and Yellowlees, {Lesley J.}",

year = "2011",

month = dec,

doi = "10.1016/j.jmr.2011.09.041",

language = "English",

volume = "213",

pages = "206--209",

journal = "Journal of Magnetic Resonance",

issn = "1090-7807",

publisher = "Elsevier",

number = "1",

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TY - JOUR

T1 - An in situ electrochemical cell for Q- and W-band EPR spectroscopy

AU - Murray, Paul R.

AU - Collison, David

AU - Daff, Simon

AU - Austin, Nicola

AU - Edge, Ruth

AU - Flynn, Brian W.

AU - Jack, Lorna

AU - Leroux, Fanny

AU - McInnes, Eric J. L.

AU - Murray, Alan

AU - Sells, Daniel

AU - Stevenson, Tom

AU - Wolowska, Joanna

AU - Yellowlees, Lesley J.

PY - 2011/12

Y1 - 2011/12

N2 - A simple design for an in situ, three-electrode spectroelectrochemical cell is reported that can be used in commercial Q- and W-band (ca. 34 and 94 GHz, respectively) electron paramagnetic resonance (EPR) spectrometers, using standard sample tubing (1.0 and 0.5 mm inner diameter, respectively) and within variable temperature cryostat systems. The use of the cell is demonstrated by the in situ generation of organic free radicals (quinones and diimines) in fluid and frozen media, transition metal ion radical anions, and on the enzyme nitric oxide synthase reductase domain (NOSrd), in which a pair of flavin radicals are generated.

AB - A simple design for an in situ, three-electrode spectroelectrochemical cell is reported that can be used in commercial Q- and W-band (ca. 34 and 94 GHz, respectively) electron paramagnetic resonance (EPR) spectrometers, using standard sample tubing (1.0 and 0.5 mm inner diameter, respectively) and within variable temperature cryostat systems. The use of the cell is demonstrated by the in situ generation of organic free radicals (quinones and diimines) in fluid and frozen media, transition metal ion radical anions, and on the enzyme nitric oxide synthase reductase domain (NOSrd), in which a pair of flavin radicals are generated.

KW - Spectroelectrochemistry

KW - EPR

KW - ESR

KW - High frequency EPR

KW - Bipyridines

KW - Flavins

UR - http://www.scopus.com/inward/record.url?scp=80055091615&partnerID=8YFLogxK

U2 - 10.1016/j.jmr.2011.09.041

DO - 10.1016/j.jmr.2011.09.041

M3 - Article

C2 - 22000629

SN - 1090-7807

VL - 213

SP - 206

EP - 209

JO - Journal of Magnetic Resonance

JF - Journal of Magnetic Resonance

IS - 1

ER -

An in situ electrochemical cell for Q- and W-band EPR spectroscopy

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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