研究领域

Physical & Theoretical Chemistry

We use state-of-the-art imaging techniques to study photoinduced chemical reactions and electron-molecule collision processes, and to carry out chemical imaging of surfaces. We are also investigating applications of cavity ringdown and other cavity-enhanced spectroscopic techniques for the chemical analysis of small liquid volumes, with applications in microfluidics and marine sensing.

近期论文

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Publications Claire Vallance, Robert G. A. R. Maclagan and Leon F. Phillips, 'Numerical study of the reaction of CN with O2', Chem. Phys. Lett., 250(1) 59-65 (1996). Claire Vallance, Peter W. Harland and Robert G. A. R. Maclagan, 'Quantum mechanical calculation of maximum electron impact single ionization cross sections for the inert gases and small molecules', J. Phys. Chem., 100(37) 15021-6 (1996). Claire Vallance, Robert G. A. R. Maclagan and Peter W. Harland, 'Ionization surfaces for small molecules', J. Phys. Chem. A, 101(19) 3505-8 (1997). Claire Vallance, Sean A. Harris, James E. Hudson and Peter W. Harland, 'Absolute electron impact ionization cross sections for CH3X, where X=H, F, Cl, Br and I', J. Phys. B, 30(10) 2465-75 (1997). Craig P. Butts, I. Eberson, R. Gonzales Luque, Christopher M. Hartshorn, Michael P. Hartshorn, M. Merchan. Ward T. Robinson, B. O. Roos, Claire Vallance, Brian R. Wood, 'Photonitration of aromatics with tetranitromethane 40. Regiochemistry of trinitromethyl attachment in the photolysis of benzofuran with tetranitromethane', Acta. Chem. Scand., 51(10) 984-99. (1997) 'The H + H2O ---> OH + H2 reaction: OH state-resolved differential cross-sections and H2 co-product internal energy disposals.', M. Brouard, I. Burak, G. A. J. Markillie, K. E. W. McGrath and C. Vallance, Chem. Phys. Lett., 281 97 (1997). Peter W. Harland and Claire Vallance, 'Ionization cross sections and ionization efficiency curves from polarizability volumes and ionization potentials', Int. J. Mass Spectrom. Ion Processes, 171 173-181 (1997). Peter W. Harland and Claire Vallance, 'Positive ion - electron impact ionization cross sections: theory and experiment', in Advances in Gas Phase Ion Chemistry Volume 3 , 1998, Edited by Nigel G. Adams and Lucia M. Babcock (J. A. I. Press Inc. 1998) pp319-358. Claire Vallance, Wan-ping Hu and Peter W. Harland, 'Upper Stark state collisional relaxation cross sections for single rotational states of CH3F', J. Phys. Chem. A, 103(6) 665-670 (1999). Peter W. Harland, Wan-ping Hu, Claire Vallance and Philip R. Brooks, 'Spatial deorientation of upper-Stark-state- selected supersonic beams of CH3F, CH3Cl, CH3Br and CH3I ', Phys. Rev. A, 60(4) 3138 (1999). David C. Bull, Peter W. Harland , Claire Vallance and Garry J. Foran, 'Application of EXAFS to the binding of CCA Preservative in wood', Report 98-G132 in the Photon Factory Activity Report 1998 (vol. 16), Editor: Akito Kakizaki, High Energy Accelerator Research Organization, Japan, 1999. David C. Bull, Peter W. Harland, Claire Vallance and Garry J. Foran, 'EXAFS study of chromated copper arsenate timber preservative in wood', Japanese. J. Wood Sci. 46(3) 248-252 (2000). 'H + N2O --> OH(v',N') + N2 reaction: OH rotational angular momentum polarization.' M. Brouard, S.D. Gatenby, D.M. Joseph, and C. Vallance; J. Chem.Phys. 113 3162 (2000). 'Insertion and abstraction pathways in the reaction O(1D2) + H2 --> OH + H.'; F.J. Aoiz, L. Banares, F.J. Castillo, M. Brouard, W. Denzer, C. Vallance, P.Honvault, J.-M. Launay, A.J. Dobbyn, and P.J. Knowles, Phys. Rev. Lett. 86(9) 1729 (2001). 'The dynamics of the reactions H + H2O --> OH + H2 and H + D20 --> OD + HD at 1.4eV.' M. Brouard, I. Burak, D. M. Joeseph, G. A. J. Markillie, D. Minayev, P. O'Keeffe and C. Vallance; J. Chem. Phys. 114(15) 6690 (2001). Mark Bart, Peter W. Harland, James E. Hudson and Claire Vallance, 'Absolute total electron impact ionization cross-sections for perfluorinated hydrocarbons and small halocarbons', Phys. Chem. Chem. Phys., 3 800 (2001). James E. Hudson, Claire Vallance, Mark Bart and Peter W. Harland, 'Absolute electron-impact ionization cross-sections for a range of C1 to C5 chlorocarbons', J. Phys. B., 34(15) 3025-3039 (2001). 'The dynamics of the light atom transfer reaction O(3PJ) + HBr --> OH(v',j') + Br(2PJ').' M. Brouard and C. Vallance; PCCP 3 3602 (2001). 'Feature article: The state resolved dynamics of elementary reactions', M Brouard, P. O'Keeffe and C. Vallance; J. Phys. Chem. A. 106 3629 (2002). 'Fourier moment analysis of velocity-map ion images', M. J. Bass, M. Brouard, A. P. Clark and C. Vallance; J. Chem. Phys. 117(19) 8723 (2002).