Research Topics
| Nick C PolferSummaryAffiliation: FOM-Institute for Plasma Physics Country: The Netherlands Publications
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Detail Information
Publications
Infrared fingerprint spectroscopy and theoretical studies of potassium ion tagged amino acids and peptides in the gas phaseNick C Polfer
FOM Institute for Plasmaphysics Rijnhuizen, Edisonbaan 14, NL 3439 MN Nieuwegein, The Netherlands
J Am Chem Soc 127:8571-9. 2005....- Differentiation of isomers by wavelength-tunable infrared multiple-photon dissociation-mass spectrometry: application to glucose-containing disaccharidesNick C Polfer
FOM Institute for Plasma Physics, Rijnhuizen, Molecular Dynamics Group, MN Nieuwegein, The Netherlands
Anal Chem 78:670-9. 2006..Given the multidimensionality of variable-wavelength IR-MPD of lithiated disaccharides, it is expected that this approach can overcome some of the current limitations in isomer differentiation... - Observation of zwitterion formation in the gas-phase H/D-exchange with CH(3)OD: solution-phase structures in the gas phaseNick C Polfer
FOM Institute for Plasma Physics Rijnhuizen, Nieuwegein, The Netherlands
J Am Soc Mass Spectrom 18:512-6. 2007..Moreover, this result shows the possibility of forming solution-phase structures that are thermodynamically disfavored in the gas phase, thus opening a new area of study... - Infrared spectroscopy and theoretical studies on gas-phase protonated leu-enkephalin and its fragments: direct experimental evidence for the mobile protonNick C Polfer
FOM Institute for Plasma Physics Rijnhuizen, Edisonbaan 14, NL 3439 MN Nieuwegein, The Netherlands
J Am Chem Soc 129:5887-97. 2007..G.; Young, A. B.; Bleiholder, B.; Suhai, S.; Paizs, B. J. Am. Chem. Soc. 2006, 128, 10364-10365) that result in scrambling of the amino acid sequence upon CID... - Stepwise solvation of an amino acid: the appearance of zwitterionic structuresMartine N Blom
FOM Institute for Plasmaphysics Rijnhuizen, Edisonbaan 14, NL 3439 MN Nieuwegein, The Netherlands
J Phys Chem A 111:7309-16. 2007.... - Infrared spectroscopy of phenylalanine Ag(I) and Zn(II) complexes in the gas phaseNick C Polfer
FOM-Institute for Plasmaphysics Rijnhuizen, MN Nieuwegein, The Netherlands
J Am Chem Soc 128:517-25. 2006.... - IRMPD spectroscopy of metal-ion/tryptophan complexesNick C Polfer
FOM Institute for Plasma Physics Rijnhuizen, Edisonbaan 14, 3439MN, Nieuwegein, The Netherlands
Phys Chem Chem Phys 8:2744-51. 2006.... - Reaction products in mass spectrometry elucidated with infrared spectroscopyNick C Polfer
FOM Institute for Plasma Physics Rijnhuizen, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands
Phys Chem Chem Phys 9:3804-17. 2007..These results emphasize that more fundamental work is required in order to understand the underlying mechanisms in two of the most important structural techniques in MS... - Peptide length, steric effects, and ion solvation govern zwitterion stabilization in barium-chelated di- and tripeptidesRobert C Dunbar
Chemistry Department, Case Western Reserve University, Cleveland, Ohio 44106, FOM Institute for Plasmaphysics Rijnhuizen, Edisonbaan 14, NL 3439 MN Nieuwegein, The Netherlands, Chemistry Department, University of Florida, Gainesville, Florida 32611, and University of Amsterdam, Nieuwe Achtergracht 166, 1018WV Amsterdam, The Netherlands
J Phys Chem B 113:10552-4. 2009.... 
On the dynamics of fragment isomerization in collision-induced dissociation of peptidesNick C Polfer
Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA
J Phys Chem A 112:1286-93. 2008..It is demonstrated here that cyclic and linear a4 structures can interconvert freely as a result of collisional activation, implying that isomerization takes place prior to dissociation...- Infrared spectroscopy of arginine cation complexes: direct observation of gas-phase zwitterionsMatthew W Forbes
Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
J Phys Chem A 111:11759-70. 2007..Experiment and theory show good agreement; for each ion species investigated, the global-minimum conformer provides a very good match to the measured IR-action spectrum... - Gas-phase zwitterion stabilization by a metal dicationRobert C Dunbar
Chemistry Department, Case Western Reserve University, Cleveland, Ohio 44106, USA
J Am Chem Soc 129:14562-3. 2007..The principal spectroscopic signatures of the SB structure are the appearance of the antisymmetric CO stretch of the carboxylate group at 1600 cm-1 and the umbrella mode of NH3 at 1400 cm-1... - Alkali metal complexes of the dipeptides PheAla and AlaPhe: IRMPD spectroscopyNick C Polfer
Chemistry Department, University of Florida, Gainesville, FL 32611, USA
Chemphyschem 9:579-89. 2008..The spectroscopic findings are in better agreement with the MPW1PW91 DFT functional calculations of the thermochemistry compared with the B3LYP functional, which seems to underestimate the importance of the cation-pi interaction... - Infrared spectroscopy of cationized lysine and epsilon-N-methyllysine in the gas phase: effects of alkali-metal ion size and proton affinity on zwitterion stabilityMatthew F Bush
Department of Chemistry, University of California, Berkeley, California 94720 1460, USA
J Phys Chem A 111:7753-60. 2007..The proton affinity of Lys(Me) is 16 kJ/mol higher than that of Lys; the higher proton affinity of a secondary amine can result in its preferential protonation and stabilization of the zwitterionic form...