John R. Eyler
Professor of Chemistry

Department of Chemistry
University of Florida

VOICE: (352) 392-0532

EMAIL: eyler@chem.ufl.edu

HOMEPAGE: http://www.chem.ufl.edu/~eylergrp/

Research Interests

We use the powerful FTICR mass spectrometric technique to examine problems in several different areas of chemistry. Both the kinetics and photochemistry/photophysics of gaseous ions are being probed. Systems under study range from atomic ions through polycylic aromatic hydrocarbon (PAH) cations and solvated organometallic complexes to large biomolecules, including both proteins and oligonucleotides.

We have obtained photo-fragmentation results and both uv/vis and ir spectra of PAH ions, and sequential solvation energies for organometallic complex ions. We use electrospray ionization to form many of the ions whose spectra and reactions we probe further, including all of the biologically relevant species. A new spectroscopic facility, which couples a free electron laser with and FTICR mass spectrometer has been developed in The Netherlands, and we make frequent trips to it to obtain ir spectra of a variety of ions.

Recent Publications

1. D.E. Richardson, G.H.L. Lang, E. Crestoni, M.F. Ryan, J.R. Eyler, "Intrinsic reactivity of metal-hydroxide complexes: O-H bond activation and adduct formation in gas-phase reactions of Cp2ZrOH+," Int. J. Mass Spectrom., 2001, 204, 255-266. [Full Text - PDF]

2. M.J. Dibben, D. Kage, J. Szczepanski, J.R. Eyler, M. Vala, "Photodissociation of the fluorene cation: A Fourier transform ion cyclotron resonance mass spectrometric study," J. Phys. Chem. A, 2001, 105, 6024-6029. [Full text - PDF]

3. J. Szczepanski, M.J. Dibben, W. Pearson, J.R. Eyler, M. Vala, "Theoretical study of the photodissociation and hydrogenation of the fluorene cation," J. Phys. Chem. A, 2001, 105, 9388-9395. [Full Text - PDF]

4. T. Zhang, S.P. Palii, J.R. Eyler, A. Brajter-Toth, "Enhancement of ionization efficiency by electrochemical reaction products in on-line electrochemistry/electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry," Anal. Chem., 2002, 74, 1097-1103. [Full Text - PDF]

5. M. Wigger, J. R. Eyler, S. A. Benner, W. Li, and A. G. Marshall, AFourier Transform Ion Cyclotron Resonance Mass Spectrometric Resolution, Identification and Screening of Non-covalent Complexes of Hck Src Homology 2 Domain Receptor and Ligands from a 324-Member Peptide Combinatorial Library,@ J. Am. Soc. Mass Spectrom.2002, 13, 1162-1169

6. S. M. Stevens, Jr., R. C. Dunbar, W. D. Price, M. Sena, C. H. Watson, L. S. Nichols, J. M. Riveros, D. E. Richardson, and J. R. Eyler, ABlackbody Infrared Radiative Dissociation of Partially Solvated Tris(2,2'-bipyridine)ruthenium (II) Complex Ions,@. J. Phys. Chem. A 2002, 106, 9686-9694.

7. J. Banisaukas, J. Szczepanski, J. R. Eyler, M. Vala, S. Hirata, M. Head-Gordon, J. Oomens, G. Meijer, and G. von Helden, ¡°Vibrational and Electronic Spectroscopy of Acenaphthylene and its Cation,¡± J. Phys. Chem. A 2003, 107, 782-793.