Fielding, Helen - University College London

个人简介

Helen Fielding is Professor of Physical Chemistry. Her research is focused on the spectroscopy and ultrafast dynamics of excited states of molecules and protein chromophores in the gas-phase and in solution. Currently, her group consists of 1 senior research associate, 1 postdoc, 4 PhD students and 4 MSci students. She collaborates with several colleagues in the Chemistry Department (Professors Helen Hailes, Geoff Thornton, Steve Price, Jim Anderson and Dr Mike Porter), with the theory groups of Professor Graham Worth, at Birmingham, and Professor Mike Robb, at Imperial, and with Professor Georg Held, at Diamond. She has worked at UCL since 2003. Before this, she worked at King’s College London (Lecturer 1994-1997; Reader 1997-2002; Professor 2002-2003). Prior to this, she was a postdoctoral research fellow at the University of Amsterdam, working with Professors Ben van Linden van den Heuvell and Wim van der Zande (1993-1994), a scientist at the National Physical Laboratory (1992) and a DPhil student at Cambridge then Oxford, working with Professor Tim Softley (1989-1992).

研究领域

Physical Chemistry and Chemical Physics

Photochemistry and photophysics Biomolecules Photoactive protein chromophores and proteins Anions in interstellar space Femtosecond time-resolved spectroscopy Photoelectron spectroscopy of neutral molecules and anions in the gas-phase Photoelectron spectroscopy of surfaces Liquid microjet photoelectron spectroscopy of molecules in solution Computational chemistry

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Tay, J., Parkes, M. A., Addison, K., Chan, Y., Zhang, L., Hailes, H. C., . . . Fielding, H. H. (2017). The Effect of Conjugation on the Competition between Internal Conversion and Electron Detachment: A Comparison between Green Fluorescent and Red Kaede Protein Chromophores. J Phys Chem Lett, 765-771. doi:10.1021/acs.jpclett.7b00174 Butorac, J., Wilson, E. L., Fielding, H. H., Brown, W. A., & Minns, R. S. (2016). A RAIRS, TPD and femtosecond laser-induced desorption study of CO, NO and coadsorbed CO + NO on Pd(111). RSC ADVANCES, 6 (70), 66346-66359. doi:10.1039/c6ra13722a Parkes, M. A., Phillips, C., Porter, M. J., & Fielding, H. H. (2016). Controlling electron emission from the photoactive yellow protein chromophore by substitution at the coumaric acid group. Physical chemistry chemical physics : PCCP, 18 (15), 10329-10336. Payne, D. T., Zhang, Y., Pang, C. L., Fielding, H. H., & Thornton, G. (2016). Coverage-dependent two-photon photoexcitation at the H2O/TiO2 interface. SURFACE SCIENCE, 652, 189-194. doi:10.1016/j.susc.2016.02.018 Neville, S. P., Kirkby, O. M., Kaltsoyannis, N., Worth, G. A., & Fielding, H. H. (2016). Identification of a new electron-transfer relaxation pathway in photoexcited pyrrole dimers. NATURE COMMUNICATIONS, 7, ARTN 11357. doi:10.1038/ncomms11357 McLaughlin, C., Assmann, M., Parkes, M. A., Woodhouse, J. L., Lewin, R., Hailes, H. C., . . . Fielding, H. H. (2016). ortho and para chromophores of green fluorescent protein: controlling electron emission and internal conversion. Chem. Sci.. doi:10.1039/C6SC03833F Reid, D. T., Heyl, C. M., Thomson, R. R., Trebino, R., Steinmeyer, G., Fielding, H. H., . . . Cerullo, G. (2016). Roadmap on ultrafast optics. Journal of Optics, 18 (9), 093006. doi:10.1088/2040-8978/18/9/093006 Kirkby, O. M., Sala, M., Balerdi, G., de Nalda, R., Banares, L., Guerin, S., & Fielding, H. H. (2015). Comparing the electronic relaxation dynamics of aniline and d(7)-aniline following excitation at 272-238 nm. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17 (25), 16270-16276. doi:10.1039/c5cp01883h Mooney, C. R. S., Parkes, M. A., Iskra, A., & Fielding, H. H. (2015). Controlling Radical Formation in the Photoactive Yellow Protein Chromophore. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 54 (19), 5646-5649. doi:10.1002/anie.201500549 Mooney, C. R., Parkes, M. A., Iskra, A., & Fielding, H. H. (2015). Corrigendum: Controlling Radical Formation in the Photoactive Yellow Protein Chromophore. Angewandte Chemie (International ed. in English), 54 (28), 8021-?. Zhang, Y., Payne, D. T., Pang, C. L., Fielding, H. H., & Thornton, G. (2015). Non-Band-Gap Photoexcitation of Hydroxylated TiO2. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 6 (17), 3391-3395. doi:10.1021/acs.jpclett.5b01508 Minns, R. S., Lazenby, D. T. C., Hall, F. H. J., Jones, N. J. A., Patel, R., & Fielding, H. H. (2014). A spectroscopic investigation of the ionisation and dissociation decay dynamics of Rydberg states of NO. MOLECULAR PHYSICS, 112 (13), 1808-1815. doi:10.1080/00268976.2013.865809 Mooney, C. R. S., Parkes, M. A., Zhang, L., Hailes, H. C., Simperler, A., Bearpark, M. J., & Fielding, H. H. (2014). Competition between photodetachment and autodetachment of the 21 ππ* state of the green fluorescent protein chromophore anion. Journal of Chemical Physics, 140 (20). doi:10.1063/1.4874643 Sala, M., Kirkby, O. M., Guerin, S., & Fielding, H. H. (2014). New insight into the potential energy landscape and relaxation pathways of photoexcited aniline from CASSCF and XMCQDPT2 electronic structure calculations. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 16 (7), 3122-3133. doi:10.1039/c3cp54418d Greenwood, J. B., Miles, J., De Camillis, S., Mulholland, P., Zhang, L., Parkes, M. A., . . . Fielding, H. H. (2014). Resonantly Enhanced Multiphoton Ionization Spectrum of the Neutral Green Fluorescent Protein Chromophore. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 5 (20), 3588-3592. doi:10.1021/jz5019256 Mooney, C. R. S., Horke, D. A., Chatterley, A. S., Simperler, A., Fielding, H. H., & Verlet, J. R. R. (2013). Taking the green fluorescence out of the protein: dynamics of the isolated GFP chromophore anion. CHEMICAL SCIENCE, 4 (3), 921-927. doi:10.1039/c2sc21737f Spesyvtsev, R., Underwood, J. G., & Fielding, H. H. (2013). Time-Resolved Photoelectron Spectroscopy for Excited State Dynamics. In R. D. Nalda, L. Bañares (Eds.), Ultrafast Phenomena in Molecular Sciences. Springer Science & Business Media. doi:10.1007/978-3-319-02051-8 Mooney, C. R., Sanz, M. E., McKay, A. R., Fitzmaurice, R. J., Aliev, A. E., Caddick, S., & Fielding, H. H. (2012). Photodetachment spectra of deprotonated fluorescent protein chromophore anions. J Phys Chem A, 116 (30), 7943-7949. doi:10.1021/jp3058349 Penfold, T. J., Spesyvtsev, R., Kirkby, O. M., Minns, R. S., Parker, D. S., Fielding, H. H., & Worth, G. A. (2012). Quantum dynamics study of the competing ultrafast intersystem crossing and internal conversion in the "channel 3" region of benzene. The Journal of chemical physics, 137 (20), 204310-?. Spesyvtsev, R., Kirkby, O. M., Vacher, M., & Fielding, H. H. (2012). Shedding new light on the role of the Rydberg state in the photochemistry of aniline. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 14 (28), 9942-9947. doi:10.1039/c2cp41785e Spesyvtsev, R., Kirkby, O. M., & Fielding, H. H. (2012). Ultrafast dynamics of aniline following 269-238 nm excitation and the role of the S-2(pi 3s/pi sigma*) state. FARADAY DISCUSSIONS, 157, 165-179. doi:10.1039/c2fd20076g Kirrander, A., Jungen, C., & Fielding, H. H. (2010). Control of ionisation and dissociation by optical pulse trains. PCCP. McKay, A. R., Sanz, M. E., Mooney, C. R. S., Minns, R. S., Gill, E. M., & Fielding, H. H. (2010). Development of a new photoelectron spectroscopy instrument combining an electrospray ion source and photoelectron imaging. REVIEW OF SCIENTIFIC INSTRUMENTS, 81 (12), ARTN 123101. doi:10.1063/1.3505097 Fielding, H. H., & Nunn, A. D. G. (2010). Femtochemistry and the control of chemical reactivity. In M. Brouard, C. Vallance (Eds.), Tutorials in Molecular Reaction Dynamics. Royal Society of Chemistry. Fielding, H. H. (2010). Femtosecond Dynamics and Control: From Rydberg Molecules to Photochemistry and Photobiology. EXTREME PHOTONICS AND APPLICATIONS, 19-35. SPRINGER. doi:10.1007/978-90-481-3634-6_2