Person
Valeriu Scutelnic
This person is no longer with EPFL
Related publications (9)
Structures of the (Imidazole)(n)H+ ... Ar (n=1,2,3) complexes determined from IR spectroscopy and quantum chemical calculations ...
Here, we present new cryogenic infrared spectra of the (Imidazole) H-n(+) (n=1,2,3) ions. The data was obtained using helium tagging infrared predissociation spectroscopy. The new results were compared with the data obtained by Gerardi et al. (Chem. Phys. ...
SPRINGER/PLENUM PUBLISHERS2022Separation and Identification of Glycan Anomers Using Ultrahigh-Resolution Ion Mobility Spectrometry and Cryogenic Ion Spectroscopy
Thomas Rizzo, Ahmed Ben Faleh, Stephan Warnke, Valeriu Scutelnic
The analysis of carbohydrates, or glycans, is challenging for established structure-sensitive gas-phase methods. The multitude of possible stereo-, regio- and structural isomers make them substantially more complex to ana-lyze than DNA or proteins, and no ...
2019High-throughput cryogenic spectroscopy for glycan analysis
Thomas Rizzo, Ahmed Ben Faleh, Stephan Warnke, Valeriu Scutelnic
A method for analyzing a plurality of molecules with cryogenic vibrational spectroscopy including the steps of providing a packet of molecules in a ionized form, injecting the packet into an ion mobility section, spatially separating the ions of the packet ...
2019Cryogenic Ion Spectroscopy for Identification of Monosaccharide Anomers
Thomas Rizzo, Valeriu Scutelnic
We combine conformer-selective, cryogenic infrared spectroscopy, quantum mechanical computations, and 18O substitution at the reducing end to determine the structural preferences of protonated glucosamine in the gas phase. Cryogenic infrared-infrared (IR-I ...
2019Can Mutational Analysis Be Used To Assist Structure Determination of Peptides?
Thomas Rizzo, Valeriu Scutelnic, Chiara Masellis, Liudmila Voronina
Mutational analysis is widely used to study the relationship between sequence and structure of proteins and peptides. It is often assumed that substituting a proline with another amino acid "locks" the peptide bond in the trans conformation, allowing only ...
2018The Structure of the Protonated Serine Octamer
Ursula Röthlisberger, Thomas Rizzo, Stephan Warnke, Marta Andreia Da Silva Perez, Valeriu Scutelnic, Aurelien Stephen Arnaud Gregor, Carsten Baldauf
The amino acid serine has long been known to form a protonated “magic-number” cluster containing eight monomer units that shows an unusually high abundance in mass spectra and has a remarkable homochiral preference. Despite many experimental and theoretica ...
2018Infrared Spectroscopy as a Probe of Electronic Energy Transfer
Thomas Rizzo, Antonio Prlj, Valeriu Scutelnic, Aleksandra Zabuga
We have combined electronic and vibrational spec- troscopy in a cryogenic ion trap to produce highly resolved, conformer-selective spectra for the ground and excited states of a peptide containing two chromophores. These spectra permit us to determine the ...
2018Cryogenic infrared spectroscopy as a probe of structure and dynamics of biomolecules
The pivotal theory of molecular biology states that the structure of biomolecules is directly related to their function in living systems. In this way, the structural investigation of biological molecules allows understanding and intervening in the fundame ...
EPFL2018Synthesis and Photophysical Characterization of Cyclometalated Ruthenium Complexes with N-Heterocyclic Carbene Ligands
Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Sadig Aghazada, Valeriu Scutelnic
In the search of new ligand environment for the ruthenium(II) complexes with pyridine-type ligands, we developed seven new cyclometalated ruthenium complexes with N-heterocyclic carbenes (NHCs). In a two-step procedure, we synthesized complexes with the ge ...
American Chemical Society2017