Projects per year
Personal profile
Biography
Personal website: Bull Research Group
James Bull is a lecturer in Ultrafast Chemical Physics, with research interests centred around the spectroscopy and dynamics of individual molecules. In the laboratory, this level of investigation is achieved by using lasers to probe molecules isolated in ultrahigh vacuum. In this environment, photoinduced reactions produce unique fingerprints, embedded in kinetic energies, angular distributions, and rotational/vibrational motion of products. By measuring these fingerprints and comparing with quantum chemical calculations, the reactivity and electronic structure of the parent molecules can be elucidated. Part of my work also involves understanding how solvation influences the ‘inherent’ properties of molecules. James is interested in applying his techniques to range of systems, including biochromophores such as the light-absorbing unit in green fluorescent protein and photoactive yellow protein, small technological molecules such as photoswitches and light-driven molecular machines, and photoactive ions possessing several different protonation/deprotonation sites or isomeric forms. A key outcome from this research field is development of state-of-the-art and instrumentation and techniques. In another project, James is interested in understanding some of the fundamental chemical physics relevant in astrochemistry, including ion formation and cooling mechanisms, photodestruction and photoresiliance.
James is originally from Christchurch, New Zealand, where he studied Chemistry at the University of Canterbury. He then moved to Oxford University on a Marie-Curie Fellowship to work in the group of Prof. Claire Vallance, where he developed two instruments for studying the dynamics of electron impact ionization. Next, James moved to Durham University to the ultrafast spectroscopy group of Prof. Jan Verlet, which used photoelectron spectroscopy to study isolated anions. James then relocated to Melbourne, Australia, where he worked in the group of Prof. Evan Bieske at the University of Melbourne, using ion mobility mass spectrometry coupled with laser spectroscopy to study photochemistry of shape-selected ions. James started at University of East Anglia in February 2019.
Teaching Interests
I teach Chemistry and Physics in the following modules:
CHE-5201B – Physical Chemistry II
PHY-5001B – Laboratory Physics
CHE-6001Y – Research Project
PHY-6004Y – Research Project
CHE-7201Y – Advanced Topics in Physical and Nanochemistry
PHY-7003B – Advanced Research Topics
Areas of Expertise
Areas of expertise include:
1. Gas-phase reaction dynamics
2. Laser and electronic spectroscopy
3. Electronic structure calculations
4. Vaccum technology & instrument development
Collaborations and top research areas from the last five years
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Tuning Molecular Motors: Molecular Dynamics of Novel Overcrowded Alkenes in Gas and Condensed Phase
Meech, S. (Principal Investigator) & Bull, J. (Co-Investigator)
Engineering and Physical Sciences Research Council
2/02/26 → 1/02/29
Project: Research
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Excited-state dynamics of technological photoswitches
Bull, J. (Principal Investigator) & Chakraborty, P. (Co-Investigator)
Engineering and Physical Sciences Research Council
1/08/25 → 1/08/26
Project: Research
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Excited state dynamics of shape-shifting molecules
Bull, J. (Principal Investigator)
Engineering and Physical Sciences Research Council
1/04/22 → 30/09/25
Project: Research
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Anti-Kasha emission in DCM-IFC: Computational evaluation of the Type III separated wavefunction hypothesis
Chakraborty, P., Bull, J. N., Meech, S. R. & Jones, G., 13 May 2026, In: Physical Chemistry Chemical Physics. 28, 22, p. 13579-13588 10 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
Conformational Switching Modulates Excited-State Pathways in a Cofacial Perylene Dimer
Bressan, G., Hartmann, D., Brouwer, J., Braun, E. M., Bull, J. N. & Barendt, T. A., 25 Mar 2026, In: Chemical Science. 17, 12, p. 5921-5933 13 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Citation (Scopus)2 Downloads (Pure) -
Dissociation and Cooling Dynamics of 2-cyanoindene Monocations: Survival of Small PAHs in Harsh Interstellar Radiation Fields
Subramani, A., de Pouzols, J. F., Martini, P., Navarro Navarrete, J. E., Ashworth, E. K., Bull, J. N., Garcia, G. A., Nahon, L., Gans, B., Jacovella, U., Rossi, C., Cederquist, H., Schmidt, H. T., Zettergren, H. & Stockett, M. H., 16 Jan 2026, In: The Astrophysical Journal. 997, 1, 17 p., 49.Research output: Contribution to journal › Article › peer-review
Open AccessFile3 Downloads (Pure) -
Hydroxycinnamate anions: the evolution of gas-phase action spectroscopy to study photoisomerisable molecules
Ashworth, E. K. & Bull, J. N., 6 Jan 2026, In: International Reviews in Physical Chemistry. 43, 1-4, p. 69-118 50 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
Photomolecular rotor dynamics of the oxindole-based photoprotective bacterial pigment violacein
Bressan, G., Siddiqui, K., Ashworth, E. K., Chakraborty, P., Banerjee, D., Braun, E. M., Meech, S. R. & Bull, J. N., 14 Jan 2026, In: Physical Chemistry Chemical Physics. 28, 2, p. 1260-1268 9 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile4 Downloads (Pure)
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Physical Chemistry Chemical Physics (Journal)
Bull, J. (Peer reviewer)
Oct 2025Activity: Editorial work › Publication peer-review
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Chemical Science (Journal)
Bull, J. (Peer reviewer)
Oct 2025Activity: Editorial work › Publication peer-review
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Chemical Science (Journal)
Bull, J. (Peer reviewer)
Oct 2025Activity: Editorial work › Publication peer-review
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Physical Chemistry Chemical Physics (Journal)
Bull, J. (Peer reviewer)
Oct 2025Activity: Editorial work › Publication peer-review
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The Journal of Physical Chemistry Letters (Journal)
Bull, J. (Peer reviewer)
Jul 2025Activity: Editorial work › Publication peer-review
Press/Media
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How Organic Molecules Survive in Space
6/06/25
1 item of Media coverage
Press/Media: Media Coverage or Contribution