Publications de Pavlo Maksyutenko

Accurate bond dissociation energy of water determined by triple-resonance vibrational spectroscopy and ab initio calculations

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko, Oleg Aseev

Triple-resonance vibrational spectroscopy is used to determine the lowest dissociation energy, D0, for the water isotopologue HD16O as 41 239.7 ± 0.2 cm−1 and to improve D0 for H216O to 41 145.92 ± 0.12 cm−1. Ab initio calculations including systematic bas ...

Elsevier2013

State-resolved spectroscopy of high vibrational levels of water up to the dissociative continuum

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko, Maxim Grechko

We summarize here our experimental studies of the high rovibrational energy levels of water. The use of double-resonance vibrational overtone excitation followed by energy-selective photofragmentation and laser-induced fluorescence detection of OH fragment ...

2012

Feshbach resonances in the water molecule revealed by state-selective spectroscopy

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko, Maxim Grechko

We employ triple-resonance vibrational overtone excitation to access quasibound states of water from several fully characterized bound states of the molecule. Comparison of the measured dissociation spectra allows a rigorous assignment of rotational quantu ...

American Institute of Physics2010

Communication: Feshbach resonances in the water molecule revealed by state-selective spectroscopy (vol 133, 081103, 2010)

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko, Maxim Grechko

2010

State-selective spectroscopy of water up to its first dissociation limit

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko, Maxim Grechko

A joint experimental and first-principles quantum chemical study of the vibration-rotation states of the water molecule up to its first dissociation limit is presented. Triple-resonance, quantum state selective spectroscopy is used to probe the entire ladd ...

2009

Collisionally-assisted spectroscopy of water from 27000 to 34000 cm-1

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko, Maxim Grechko

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 demonstrated the use of laser double-resonance overtone excitati ...

2008

Multiple-resonance spectroscopy of high vibrational levels in water and methanol

Pavlo Maksyutenko

We have measured the rovibrational levels in the electronic ground state of the water molecule at the previously inaccessible energies above 26000 cm-1. The use of laser double-resonance overtone excitation combined with laser-induced fluorescence (LIF) ph ...

EPFL2008

Approaching the full set of energy levels of water

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko

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 excitation extends this limit to 34,200 cm-1, which correspond ...

2007

Conformational dependence of intramolecular vibrational redistribution in methanol

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko

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 intramolecular vibrational redistribution (IVR) on three t ...

2007

A direct measurement of the dissociation energy of water

Thomas Rizzo, Oleg Boyarkine, Pavlo Maksyutenko

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 through a series of vibrational overtone transitions to acce ...

2006