Selected publications


2019

Ultraslow radiative cooling of Cn (n = 3 − 5)
James N. Bull, Michael S. Scholz, Eduardo Carrascosa, Moa K. Kristiansson, Gustav Eklund, Najeeb Punnakayathil, Nathalie de Ruette, Henning Zettergren, Henning T. Schmidt, Henrik Cederquist, Mark H. Stockett, submitted.

Ultrafast photoisomerisation of an isolated retinoid
James N. Bull
, Christopher W. West,
Cate S. Anstöter, Gabriel da Silva, Evan J. Bieske, Jan R. R. Verlet, Physical Chemistry Chemical Physics, 21 (2019) 10567-10579


Photoinitiated Intramolecular Proton Transfer in Deprotonated para-Coumaric Acid
James N. Bull, Gabriel da Silva, Michael S. Scholz, Eduardo Carrascosa, Evan J. Bieske, Journal of Physical Chemistry A, 123 (2019) 4419-4430

Photoelectron Spectroscopy of the Hexafluorobenzene Cluster Anions: (C6F6)n (n = 1–5) and I(C6F6)
Joshua P. Rogers, Cate S. 
Anstöter, James N. Bull, Basile F. E. Curchod, Jan R. R. Verlet, Journal of Physical Chemistry A, 123 (2019) 1602

Photodetachment and Photoreactions of Substituted Naphthalene Anions in a Tandem Ion Mobility Spectrometer
James N. Bull, Jack Buntine, Michael Scholz, Eduardo Carrascosa,
Linda Giacomozzi, Mark H. Stockett, Evan J Bieske, Faraday Discussions, 217 (2019) 34-46



2018

Ion mobility action spectroscopy of flavin dianions reveals deprotomer-dependent photochemistry

James N. Bull, Eduardo Carrascosa, Linda Giacomozzi, Evan Bieske, Mark H. Stockett, Physical Chemistry Chemical Physics, 20 (2018) 19672

Double molecular photoswitch driven by light and collisions
James N. Bull, Michael S. Scholz, Eduardo Carrascosa, Gabriel da Silva, Evan J. Bieske, Physical Review Letters, 120 (2018) 223002

Reversible Photoisomerization of the Isolated Green Fluorescent Protein Chromophore
Eduardo CarrascosaJames N. BullMichael S. ScholzNeville J. A. CoughlanSeth OlsenUta WilleEvan J. Bieske, Journal of Physical Chemistry Letters
9 (2018) 2647

Linkage Photoisomerization of an Isolated Ruthenium Sulfoxide Complex: Sequential versus Concerted Rearrangement
Michael S. Scholz, James N. Bull, Eduardo Carrascosa, Brian D. Adamson, Gilbert K. Kosgei, Jeffrey J. Rack, Evan J. Bieske, Inorganic Chemistry, 57 (2018) 5701

Differential-mobility spectrometry of 1-deoxysphingosine isomers: New insights into the gas phase structures of ionized lipids
Berwyck L. J. Poad, Alan T. Maccarone, Haibo Yu, Todd W. Mitchell, Essa M. Saied, C. Arenz, Thorsten Hornemann, James N. Bull, Evan J. Bieske, Stephen J. Blanksby, Analytical Chemistry90 (2018) 5343

Photoswitching an isolated donor-acceptor Stenhouse adduct
James N. Bull, Eduardo Carrascosa, Neil Mallo, Michael S. Scholz, Gabriel da Silva, Jonathon E. Beves, Evan J. Bieske, Journal of Physical Chemistry Letters, 9 (2018) 665

From E to Z and back again: Reversible photoisomerization of an isolated charge-tagged azobenzene
James N. Bull, Michael S. Scholz, Eduardo Carrascosa, Evan J. BieskePhysical Chemistry Chemical Physics,  20 (2018) 509

2017
Photoisomerization of Protonated Azobenzenes in the Gas Phase
Michael S. Scholz, James N. Bull, Neville J. A. Coughlan, Eduardo Carrascosa, Brian D. Adamson, Evan J. Bieske, Journal of Physical Chemistry A, 121 (2017) 6413

Protomer-Specific Photochemistry Investigated Using Ion Mobility Mass Spectrometry
James N. Bull, Neville J. A. Coughlan, Evan J. Bieske, Journal of Physical Chemistry A, 121 (2017) 6021

Online measurement of photoisomerisation efficiency in solution using ion mobility mass spectrometry
James N. Bull,
Eduardo Carrascosa, M. S. Scholz, Neville J. A. Coughlan, Evan J. Bieske, Analyst, 142 (2017) 2100

Isomerisation of an intramolecular hydrogen-bonded photoswitch: protonated azobis(2-imidazole)
James N. Bull, Michael S. Scholz, Neville J. A. Coughlan, Evan J. Bieske, 
Physical Chemistry Chemical Physics, 19 (2017) 12776

Dynamics of π*-resonances in anionic clusters of para-toluquinone

James N. Bull, Jan R. R. Verlet, Physical Chemistry Chemical Physics, 19 (2017) 26589


Observation and ultrafast dynamics of a correlation-bound state of an anion

James N. Bull, Jan R. R. Verlet, Science Advances, 3 (2017) e1603106


A strong cis- effect in an imidazole/imidazolium substituted alkene
D. C. Georgiou, M. A. Haghighatbin, Connor F. Hogan, Michael S. Scholz,
James N. Bull, Evan J. Bieske, David J. D. Wilson, Jason L. Dutton, Angew. Chem. Int. Ed., 56 (2017) 8473

Electron-impact-ionization dynamics of SF6
James N. Bull, Jason W. L. Lee, Claire Vallance, Physical Review A, 96 (2017) 042704


2016

Monitoring Isomerization of Molecules in Solution Using Ion Mobility Mass Spectrometry
James N. Bull, Michael S. Scholz, Neville J. A. Coughlan, Akio Kawai, Evan J. Bieske, Analytical Chemistry, 88 (2016) 11978

Charged Particle Imaging of the Deprotonated Octatrienoic Acid Anion: Evidence for a Photo-induced Cyclization Reaction

Christopher W. West, James N. Bull, Jan R. R. Verlet, Journal of Physical Chemistry Letters, 7 (2016) 4635


The Vitamin E Radical Probed by Anion Photoelectron Imaging

Cate S. AnstöterChristopher W. WestJames N. Bull, Jan R. R. Verlet, Journal of Physical Chemistry B, 120 (2016) 1728


Ultrafast dynamics of temporary anions probed through the prism of photodetachment

Cate S. Anstöter, James N. Bull, Jan R. R. Verlet, International Reviews in Physical Chemistry, 35 (2016) 509


Ultrafast dynamics of formation and autodetachment of a dipole-bound state in an open-shell π-stacked dimer anion

James N. Bull, Christopher W. West, Jan R. R. Verlet, Chemical Science, 7 (2016) 5352

Photoelectron imaging as a probe of the repulsive Coulomb barrier in the photodetachment of antimony tartrate dianions
Christopher W. West, James N. Bull, David A. Woods, Jan R. R. Verlet, Chemical Physics Letters, 645 (2016) 138


2015

Internal conversion outcompetes autodetachment from resonances in the deprotonated tetracene anion continuum
James N. Bull, Christopher W. West, Jan R. R. Verlet, Physical Chemistry Chemical Physics, 17 (2015) 32464

Anion resonances and above-threshold dynamics of coenzyme Q0
James N. Bull, Christopher W. West, Jan R. R. Verlet, Physical Chemistry Chemical Physics, 17 (2015) 16125

Excited state dynamics of the isolated green fluorescent protein chromophore anion following UV excitation
Christopher W. West, James N. Bull, Alex S. Hudson, S. L. Cobb, Jan R. R. Verlet, Journal of Physical Chemistry B, 119 (2015) 3982

Time-Resolved Photodetachment Anisotropy: Gas-Phase Rotational and Vibrational Dynamics of the Fluorescein Anion
Daniel A. Horke, Adam S. Chatterley, James N. Bull, Jan R. R. Verlet, Journal of Physical Chemistry Letters, 6 (2015) 189

On the formation of anions: Frequency-, angle-, and time-resolved photoelectron imaging of the menadione radical anion
James N. Bull, Christopher W. West, Jan R. R. Verlet, Chemical Science, 6 (2015) 1578

Electron ionization dynamics of N2 and O2 molecules: Velocity-map imaging
James N. Bull, Jason W. L. Lee, Claire Vallance, Physical Review A, 91 (2015) 022704


2014 and earlier

Anion Resonances of para-Benzoquinone Probed by Frequency-Resolved Photoelectron Imaging
Christopher W. West, James N. Bull, Erkki Antonkov, Jan R. R. Verlet, Journal of Physical Chemistry A,
 118, (2014) 11346

Electron-impact-ionization dynamics of five C2 to C4 per fluorocarbons
James N. Bull, Mark Bart, Claire Vallance, Peter W. Harland, Physical Review A, 88 (2014) 062710

Absolute electron total ionization cross-sections: molecular analogues of DNA and RNA nucleobase and sugar constituents
James N. Bull, Jason W. L. Lee, Claire Vallance, Physical Chemistry Chemical Physics16 (2014) 10743

An introduction to velocity-map imaging mass spectrometry (VMImMS)
James N. Bull, Jason W. L. Lee, Sara H. Gardiner, Claire Vallance, European Journal of Mass Spectrometry20 (2014) 117

Quantification of ions with identical mass-to-charge (m/z) ratios by velocity-map imaging mass spectrometry

James N. Bull, Jason W. L. Lee, Claire Vallance, Physical Chemistry Chemical Physics15 (2013) 13796

Absolute Total Electron Impact Ionization Cross-Sections for Many-Atom Organic and Halocarbon Species
James N. Bull, Peter W. Harland, Claire Vallance, Journal of Physical Chemistry A, 116(1) (2012) 767

Anisotropic mean-squared-displacement tensor in cubic almandine garnet: a single crystal 57Fe Mössbauer study
James N. Bull, W. Craighead Tennant, T. Boffa Ballaran, Fabrizio Nestola, Catherine A. McCammon, Physics and Chemistry of Minerals, 39 (2012) 561

First-principle calculations on the microscopic 57Fe electric-field-gradient tensor of ferrous chloride tetrahydrate: a prototypical Mössbauer species
James N. Bull, Robert G. A. R. Maclagan, W. Craighead Tennant, Journal of Physical Chemistry A, 115 (2011) 10655

Microscopic 57Fe electric-field-gradient and anisotropic mean-squared-displacement tensors: ferrous chloride tetrahydrate
James N. Bull, Christopher M. Fitchett, W. Craighead Tennant, Hyperfine Interactions, 198 (2010) 273

A new isomorph of ferrous chloride tetrahydrate: A 57Fe Mössbauer and X-ray crystallography study
James N. Bull, Robert G. A. R. Maclagan, Christopher M. Fitchett, W. Craighead Tennant, Journal of Physics and Chemistry of Solids, 71 (2010) 1746

Ferrous ammonium sulphate hexahydrate Mössbauer revisited: a combined X-ray 57Fe Mössbauer single crystal study
James N. Bull, Ward T. Robinson, W. Craighead Tennant, Hyperfine Interactions, 194 (2009) 347

On the Electron Affinity of Nitromethane (CH3NO2)
James N. Bull, Robert G. A. R. Maclagan, Peter W. Harland, Journal of Physical Chemistry A, 114 (2010) 3622

Absolute electron impact ionization cross-sections and polarisability volumes for C2 to C4 aldehydes, C4 and C6 symmetric ethers and C3 to C6 ketones
James N. Bull, Peter W. Harland, International Journal of Mass Spectrometry, 273 (2008) 53