Spectroscopy and Conformational Preferences of Gas-Phase Helices (2009)
Stearns, Jaime A., Seaiby, Caroline, Boyarkin, Oleg V., Rizzo, Thomas R.
We describe here a study of the spectroscopy of two peptides that we expect to be helical, Ac-Phe-(Ala)5-Lys-H+ and Ac-Phe-(Ala)10-Lys-H+, and one that we expect to be globular,...
Spectroscopy of Protonated Peptides Assisted by Infrared Multiple Photon Excitation (2009)
Guidi, Monia, Lorenz, Ulrich J., Papadopoulos, Georgios, Boyarkin, Oleg V., Rizzo, Thomas R.
We report here a new technique for spectroscopic studies of protonated, gas- phase biomolecules and demonstrate its utility by measuring highly-resolved electronic and infrared spectra of peptides of...
Spectroscopic studies of cold, gas-phase biomolecular ions (2009)
Rizzo, Thomas R., Stearns, Jaime A., Boyarkin, Oleg V.
While the marriage of mass spectrometry and laser spectroscopy is not new, developments over the last few years in this relationship have opened up new horizons for the spectroscopic study of...
Effects of N-terminus substitution on the structure and spectroscopy of gas-phase helices (2008)
Stearns, Jaime A., Boyarkin, Oleg V., Rizzo, Thomas R.
Because of the importance of helices in the secondary structure of proteins, we have undertaken a study of their spectroscopy, fragmentation patterns and conformations in the gas phase. In this work,...
ULTRAVIOLET AND INFRARED SPECTROSCOPY OF HELICAL PEPTIDES AND THEIR WATER COMPLEXES (2008)
Stearns, Jaime A., Guidi, Monia, Seaiby, Caroline, Svendsen, Annette, Boyarkin, Oleg V., Rizzo, Thomas R.
Author Institution: Laboratoire de Chimie Physique Moleculaire, Ecole Polytechnique Federale de Lausanne, CH-1015, Lausanne, Switzerland
CONFORMATION-SPECIFIC INFRARED SPECTROSCOPY OF GAS-PHASE PROTONATED HELICAL PEPTIDES (2008)
Stearns, Jaime A., Guidi, Monia, Seaiby, Caroline, Svendsen, Annette, Boyarkin, Oleg V., Rizzo, Thomas R.
Author Institution: Laboratoire de Chimie Physique Moleculaire, Ecole Polytechnique Federale de Lausanne, CH-1015, Lausanne, Switzerland
Collisionally-assisted spectroscopy of water from 27000 to 34000 cm-1. (2008)
Grechko, Maxim, Maksyutenko, Pavlo, Rizzo, Thomas R., Boyarkin, Oleg V., Zobov, Nikolai F., Shirin, Sergei V., ...
We report here an experimental approach that enables measurement of weak transitions to a wide range of rovibrational levels of water in the energy region 27000-34200 cm-1. We have previously...
Conformational dependence of intramolecular vibrational redistribution in methanol (2007)
Maksyutenko, Pavel, Boyarkin, Oleg V., Rizzo, Thomas R., Perry, David S.
Previous state-selected spectra of methanol in the 5ν1 OH stretch overtone region [O. V. Boyarkin, T. R. Rizzo, and D. S. Perry, J. Chem. Phys. 110 (23), 11346 (1999)] revealed structure indicating...
Approaching the full set of energy levels of water (2007)
Maksyutenko, Pavlo, Zobov, Nikolai F., Shirin, Sergei V., Polyansky, Oleg L., Muenter, John S., Rizzo, Thomas R., ...
We report here measurements of rovibrational levels in the electronic ground state of water at the previously inaccessible energies above 26,000 cm-1. The use of laser double-resonance overtone...
Stearns, Jaime A., Mercier, Sébastien, Seaiby, Caroline, Guidi, Monia, Boyarkin, Oleg V., Rizzo, Thomas R.
We present here ultraviolet and infrared spectra of protonated aromatic amino acids in a cold, 22-pole ion trap. Ultraviolet photofragmentation spectra of protonated tyrosine and phenylalanine show...
Stearns, Jaime A., Guidi, Monia, Boyarkin, Oleg V., Rizzo, Thomas R.
We present the spectroscopy and photofragmentation dynamics of two isomeric protonated dipeptides, H+AlaTyr and H+TyrAla, in a cold ion trap. By a combination of infrared-ultraviolet double resonance...
Spectroscopic signatures of gas-phase helices: Ac-Phe-(Ala)5-Lys-H+ and Ac-Phe-(Ala)10-Lys-H+ (2007)
Stearns, Jaime A., Boyarkin, Oleg V., Rizzo, Thomas R.
We apply gas-phase double resonance spectroscopic techniques to two helical peptides, Ac-Phe-(Ala)5-Lys-H+ and Ac-Phe- (Ala)10-Lys-H+, using electrospray ionization combined with photofragmentation...
Stearns, Jaime A., Guidi, Monia, Seaiby, Caroline, Svendsen, Annette, Boyarkin, Oleg V., Rizzo, Thomas R.
Author Institution: Laboratoire de Chimie Physique Moleculaire, Ecole Polytechnique Federale de Lausanne, CH-1015, Lausanne, Switzerland
Efficient, highly selective laser isotope separation of carbon-13 (2006)
Polianski, Mikail N., Rizzo, Thomas R., Boyarkin, Oleg V.
We recently demonstrated an original approach to highly selective laser isotope separation of carbon-13 that employs vibrational overtone pre-excitation of CF3 H together with infrared multiphoton...
A direct measurement of the dissociation energy of water (2006)
Maksyutenko, Pavlo, Rizzo, Thomas R., Boyarkin, Oleg V.
We have performed a direct measurement of one of the most fundamental thermochemical values: the O-H bond energy in water. Using a triple-resonance laser excitation scheme, we excite the molecule...
Microsolvation effects on the excited state dynamics of protonated tryptophan (2006)
Mercier, Sébastien R., Boyarkin, Oleg V., Kamariotis, Anthi, Guglielmi, Matteo, Tavernelli, Ivano, Cascella, Michele, ...
To better understand the complex photophysics of the amino acid tryptophan, which is widely used as a probe of protein structure and dynamics, we have measured electronic spectra of protonated,...
ELECTRONIC SPECTROSCOPY OF COLD BIOMOLECULAR IONS IN THE GAS PHASE (2006)
Stearns, Jaime A., Guidi, Monia, Mercier, Sebastien, Boyarkin, Oleg V., Rizzo, Thomas R.
Author Institution: Laboratoire de Chimie Physique Moleculaire, Ecole Polytechnique Federale de Lausanne, CH-1015, Lausanne, Switzerland
INFRARED-ULTRAVIOLET DOUBLE RESONANCE SPECTROSCOPY OF COLD BIOMOLECULAR IONS IN THE GAS PHASE (2006)
Stearns, Jaime A., Guidi, Monia, Mercier, Sebastien, Boyarkin, Oleg V., Rizzo, Thomas R.
Author Institution: Laboratoire de Chimie Physique Moleculaire, Ecole Polytechnique Federale de Lausanne, CH-1015, Lausanne, Switzerland
OVERTONE AND COMBINATION BAND SPECTROSCOPY OF JET COOLED METHANOL (2001)
Rueda, David, Boyarkin, Oleg V., Rizzo, T. R., Chirokolava, Andrei, Mukhopadhyay, Indranath, Perry, David S.
[1] H.L. Fang, D.M. Meister, R.L. Swofford, J. Phys. Chem. 88, 405-409 (1984). [2] O.V. Boyarkin, L. Lubich, R.D.F. Settle, D.S. Perry, T.R. Rizzo, J. Chem. Phys. 107, 8409-8422 (1997).
Rueda, David, Boyarkin, Oleg V., Rizzo, T.R., Chirokolava, Andrei, Mukhopadhyay, Indranath, Perry, David S.
Author Institution: INSTITUT DE CHIMIE PHYSIQUE MOLECULAIRE, EPFL, CH - 1015, LAUSANNE; Department of Chemistry, UNIVERSITY OF AKRON, AKRON, OHIO 44325
SPECTROSCOPY AND DYNAMICS OF HIGHLY VIBRATIONALLY EXCITED METHANOL (1998)
Rizzo, Thomas R., Boyarkin, Oleg V., Schmid, Mathieu, Chirokolava, Andrei, Perry, David S.
Author Institution: Laboratoire de chimie physique mol\'{e}culaire, Ecole Polytechnique F\'{e}d\'{e}rale de Lausanne; Department of Chemistry, University of Akron
TORSIONAL ANALYSIS OF METHANOL IN THE OH VIBRATIONAL MANIFOLD UP TO $v_{OH} = 6$ (1998)
Perry, David S., Boyarkin, Oleg V.
Author Institution: Department of Chemistry, University of Akron; Laboratoire de chimie physique mol\'{e}culaire, Ecole Polytechnique F\'{e}d\'{e}rale de Lausanne
ROTATIONALLY RESOLVED VIBRATIONAL OVERTONE SPECTRA OF JET-COOLED METHANOL (1996)
Boyarkin, Oleg V., Lubich, Lucia, Rizzo, T. R., Perry, David S.
Author Institution: Laboratoire de chimie physique Mol\'{e}culaire, Ecole Polytechnique F\'{e}d\'{e}rale de Lausanne; Department of Chemistry, University of Akron
Boyarkin, Oleg V., Settle, R. D. F., Rizzo, T. R.
$^{1}$ H.-R. Dubal and M. Quack, J. Chem. Phys. 81.3779, 1984.