Publications

The following papers on the FHI FEL project have been presented at conferences:

  1. 2022: Analyses supporting the two-color upgrade to the IR FEL at FHI, Berlin, presented at the 40th International Free-Electron Laser Conference
  2. 2019: The FHI FEL Upgrade Design, presented at the 39th International Free-Electron Laser Conference
  3. 2017: Pulse shape characterisation and synchronization with external short-pulse lasers, presented at the 38th International Free-Electron Laser Conference
  4. 2015: Facility description, presented at the SPIE Conference Advances in X-ray Free-Electron Lasers Instrumentation III, Sandra G. Biedron, Editor, Proc. of SPIE Vol. 9512, 95121L (2015).
    W. Schöllkopf et al., “The new IR and THz FEL Facility at the Fritz Haber Institute in Berlin,” http://dx.doi.org/10.1117/12.2182284 Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
  5. 2014: Facility Overview, presented at the 36th International Free-Electron Laser Conference
  6. 2013: Control System, presented at the 14th International ICALEPCS Conference
  7. 2013: System Overview, presented at the 35th International Free-Electron Laser Conference
  8. 2013: Control System, presented at the 35th International Free-Electron Laser Conference
  9. 2012: First Lasing, presented at the 34th International Free-Electron Laser Conference
  10. 2012: Commissioning report, presented at the 34th International Free-Electron Laser Conference
  11. 2012: Undulator, presented at the 34th International Free-Electron Laser Conference
  12. 2011: Status report, presented at the 33nd International Free-Electron Laser Conference
  13. 2011: Status report, presented at the 2nd International Particle Accelerator Conference
  14. 2010: Status report, presented at the 32nd International Free-Electron Laser Conference

The following papers describing results gained by user groups of the FHI FEL have been published:

  1. 2024: R. Kiessling et al., Phys. Rev. Research 6, 013066 (2024);
    Spectral narrowing of a phonon resonance in time-domain sum-frequency spectroscopy
    Group of Alexander Paarmann (FHI).
  2. 2023: K. Greis et al., J. Phys. Chem. Lett. 14, 11313−11317 (2023);
    Infrared Spectroscopy of Fluorenyl Cations at Cryogenic Temperatures
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  3. 2023: M. Safferthal et al., Phys. Chem. Chem. Phys. 25, 24783–24788 (2023);
    Cryogenic Infrared Spectroscopy Reveals Remarkably Short NH+···F Hydrogen Bonds in Fluorinated Phenylalanines
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  4. 2023: David Yubero Valdivielso et al., Dalton Transactions 52, 9929–9939 (2023);
    IR spectra and structures of saturated ruthenium cluster carbonyl cations Run(CO)m+ (n=1-6)
    Group of André Fielicke (FHI).
  5. 2023: Xiang Ni et al., Nat. Commun. 14, 2845 (2023);
    Observation of directional leaky polaritons at anisotropic crystal interfaces
    Group of Alexander Paarmann (FHI) in collaboration with the groups of Andrea Alù (City University New York, USA) and Peining Li (Huazhong University of Science & Technology, PR China).
  6. 2023: K. Greis et al., J. Org. Chem. 88, 5543–5553 (2023);
    Characterization and Fate of a Septanosyl Ferrier Cation in the Gas and Solution Phases
    Group of Kevin Pagel (FU Berlin & FHI) in collaboration with the group of Mark W. Peczuh (University of Connecticut, USA).
  7. 2023: Zi-Yu Li et al., Chem. Eur. J. 29, e202203384 (2023);
    Dinitrogen Activation in the Gas Phase: Spectroscopic Characterization of C-N Coupling in the V3C++N2 Reaction
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the groups of Hui Chen and Sheng-Gui He (University of Chinese Academy of Sciences, PR China).
  8. 2023: J. Riedel et al., J. Am. Chem. Soc. 145, 7859–7868 (2023);
    Predicting Structural Motifs of Glycosaminoglycans using Cryogenic Infrared Spectroscopy and Random Forest
    Group of Kevin Pagel (FU Berlin & FHI).
  9. 2023: M. I. Taccone et al., Phys. Chem. Chem. Phys. 25, 10907-10916 (2023);
    Infrared Action Spectroscopy of the Deprotonated Formic Acid Trimer, Trapped in Helium Nanodroplets
    Group of Gert von Helden (FHI).
  10. 2023: C. Kirschbaum et al., Chem. Sci. 14, 2518-2527 (2023);
    Establishing carbon–carbon double bond position and configuration in unsaturated fatty acids by gas-phase infrared spectroscopy
    Group of Kevin Pagel (FU Berlin & FHI) in collaboration with the group of Stephen J. Blanksby (Queensland University of Technology, Australia).
  11. 2023: M. Lettow et al., Angew. Chem. Int. Ed. 62, e202302883 (2023);
    Decoding the Fucose Migration Product during Mass-Spectrometric Analysis of Blood Group Epitopes
    Group of Kevin Pagel (FU Berlin & FHI).
  12. 2022: M. Kohlmann et al., Appl. Phys. Lett. 121, 191105 (2022);
    Second harmonic generation from grating-coupled hybrid plasmon–phonon polaritons
    Group of Alexander Paarmann (FHI) in collaboration with Markus Münzenberg (Universität Greifswald).
  13. 2022: K. Greis et al., J. Am. Chem. Soc. 144, 20258–20266 (2022);
    The Influence of the Electron Density in Acyl Protecting Groups on the Selectivity of Galactose Formation
    Group of Kevin Pagel (FU Berlin & FHI).
  14. 2022: Yun Liu et al., Angew. Chem. Int. Ed. 61, e202202561 (2022);
    Adatom Bonding Sites in a Nickel-Fe3O4(001) Single-Atom Model Catalyst and O2 Reactivity Unveiled by Surface Action Spectroscopy with Infrared Free-Electron Laser Light
    Group of Helmut Kuhlenbeck (FHI) in collaboration with the group of Sergey V. Levchenko (Skoltech Moscow, RU).
  15. 2022: Ya–Ke Li et al., Angew. Chem. Int. Ed. 61, e202202297 (2022);
    Gas Phase Mechanism of O•−/Ni2+-mediated Methane Conversion to Formaldehyde
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Joachim Sauer (HU Berlin).
  16. 2022: K. Greis et al., Eur. J. Org. Chem. 2022(15), e202200255 (2022);
    Neighboring Group Participation of Benzoyl Protecting Groups in C3- and C6-Fluorinated Glucose
    Group of Kevin Pagel (FU Berlin & FHI).
  17. 2022: R. Niemann et al., Appl. Phys. Lett. 120, 131102 (2022);
    Long-wave infrared super-resolution wide-field microscopy using sum-frequency generation
    Group of Alexander Paarmann (FHI) in collaboration with Joshua D. Caldwell (Vanderbilt University, USA).
  18. 2022: N.C. Passler et al., Nature 602, 595–600 (2022);
    Hyperbolic shear polaritons in low-symmetry crystals
    Group of Alexander Paarmann (FHI) in collaboration with Joshua D. Caldwell (Vanderbilt University, USA).
  19. 2022: C. Kirschbaum et al., Anal. Bioanal. Chem. 414, 5275–5285 (2022);
    Cryogenic infrared spectroscopy provides mechanistic insight into the fragmentation of phospholipid silver adducts
    Group of Kevin Pagel (FU Berlin & FHI).
  20. 2022: K. Greis et al., Angew. Chem. Int. Ed. 61, e202115481 (2022);
    Studying the Key Intermediate of RNA Autohydrolysis by Cryogenic Gas-Phase Infrared Spectroscopy
    Group of Kevin Pagel (FU Berlin & FHI).
  21. 2021: C. Kirschbaum et al., J. Am. Chem. Soc. 143, 14827 (2021);
    Unveiling Glycerolipid Fragmentation by Cryogenic Infrared Spectroscopy
    Group of Kevin Pagel (FU Berlin & FHI).
  22. 2021: C. Kirschbaum et al., Anal. Bioanal. Chem. 413, 3643 (2021);
    Non-covalent double bond sensors for gas-phase infrared spectroscopy of unsaturated fatty acids
    Group of Kevin Pagel (FU Berlin & FHI).
  23. 2021: A. Greene et al., Phys. Rev. Lett. 127, 033002 (2021);
    Atomic Cluster Au10+ is a Strong Broadband Midinfrared Chromophore
    Group of André Fielicke (FHI) in collaboration with the group of Stuart Mackenzie (University of Oxford, UK).
  24. 2021: Y. Liu et al., Angew. Chem. Int. Ed. 60, 16514-16520 (2021);
    Surface oxygen Vacancies on Reduced Co3O4(100): Superoxide Formation and Ultra-Low-Temperature CO Oxidation
    Group of Helmut Kuhlenbeck (FHI) in collaboration with the group of Rossitza Pentcheva (University Duisburg-Essen).
  25. 2021: C. Kirschbaum et al., Nature Communications 12, 1201 (2021);
    Unravelling the structural complexity of glycolipids with cryogenic infrared spectroscopy
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  26. 2021: D.A. Thomas et al., J. Phys. Chem. A, 125, 9279−9287 (2021);
    Helium Nanodroplet Infrared Action Spectroscopy of the Proton-Bound Dimer of Hydrogen Sulfate and Formate: Examining Nuclear Quantum Effects
    Group of Gert von Helden (FHI).
  27. 2021: M. Lettow et al., J. Phys. Chem. A, 125, 4373−4379 (2021);
    Chondroitin Sulfate Disaccharides in the Gas Phase: Differentiation and Conformational Constraints
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  28. 2021: E. Cunningham et al., Phys. Chem. Chem. Phys. 23, 329–338 (2021);
    Infrared action spectroscopy of nitrous oxide on cationic gold and cobalt clusters
    Group of André Fielicke (FHI) in collaboration with the group of Stuart Mackenzie (University of Oxford, UK).
  29. 2020: K. Greis et al., Org. Lett. 22, 8916–8919 (2020);
    Direct Experimental Characterization of the Ferrier Glycosyl Cation in the Gas Phase
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI) in collaboration with the group of Peter Seeberger (MPI für Kolloid- und Grenzflächenforschung).
  30. 2020: M. Jia et al., J. Phys. Chem. C, 124, 7624−7633 (2020);
    Hydrogen Adsorption and Dissociation on AlnRh2+ (n=1 to 9) Clusters: Steric and Coordination Effects
    Group of André Fielicke (FHI) in collaboration with the groups of Ewald Janssens and Minh Tho Nguyen (KU Leuven, Belgium).
  31. 2020: A. Green et al., J. Phys. Chem. A, 124, 5389−5401 (2020);
    Infrared Study of OCS Binding and Size-Selective Reactivity with Gold Clusters, Aun+ (n=1−10)
    Group of André Fielicke (FHI) in collaboration with the group of Stuart Mackenzie (University of Oxford, UK).
  32. 2020: C. Kirschbaum et al., Angew. Chem. Int. Ed., 59, 13638–13642 (2020);
    Resolving Sphingolipid Isomers Using Cryogenic Infrared Spectroscopy
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  33. 2020: G. Meizyte et al., Phys. Chem. Chem. Phys. 22, 18606-18613 (2020);
    Free electron laser infrared action spectroscopy of nitrous oxide binding to platinum clusters, Ptn(N2O)+
    Group of André Fielicke (FHI) in collaboration with the group of Stuart Mackenzie (University of Oxford, UK).
  34. 2020: M. Lettow et al., Anal. Chem., 92, 10228−10232 (2020);
    Cryogenic Infrared Spectroscopy Reveals Structural Modularity in the Vibrational Fingerprints of Heparan Sulfate Diastereomers
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  35. 2020: K. Greis et al., Chem. Phys. Chem., 21, 1905-1907 (2020);
    The Impact of Leaving Group Anomericity on the Structure of Glycosyl Cations of Protected Galactosides
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI) in collaboration with the group of Peter Seeberger (MPI für Kolloid- und Grenzflächenforschung).
  36. 2020: M. Marianski et al., Angew. Chem. Int. Ed., 59, 6166-6171 (2020);
    Remote Participation during Glycosylation Reactions of Galactose Building Blocks: Direct Evidence from Cryogenic Vibrational Spectroscopy
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI) in collaboration with the group of Peter Seeberger (MPI für Kolloid- und Grenzflächenforschung).
  37. 2020: M. Lettow et al., Anal. Bioanal. Chem., 412, 533–537 (2020);
    IR action spectroscopy of glycosaminoglycan oligosaccharides
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  38. 2020: Jessalyn A. DeVine et al., Mol. Phys., 118, e1749953 (2020);
    Infrared photodissociation spectroscopy of D2-tagged CH3CO2-(H2O)0-2 anions
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Dan Neumark (UC Berkeley, USA).
  39. 2020: D.A. Thomas et al., Phys. Chem. Chem. Phys., 22, 18400--18413 (2020);
    Probing the conformational landscape and thermochemistry of DNA dinucleotide anions via helium nanodroplet infrared action spectroscopy
    Group of Gert von Helden (FHI).
  40. 2020: S. Debnath et al., J. Phys. Chem. C 124, 6952-6953 (2020);
    Correction to "CO2 Adsorption on Ti3O6‐: A Novel Carbonate Binding Motif"
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with Min Gao, Satoshi Maeda, Tetsuya Taketsugu, and Andrey Lyalin (Hokkaido University, Japan) and the group of Dan Neumark (UC Berkeley, USA).
  41. 2020: Y. Liu et al., J. Am. Chem. Soc. 142, 2665–2671 (2020);
    Elucidating Surface Structure with Action Spectroscopy.
    Group of Helmut Kuhlenbeck (FHI Dept. Chemical Physics; Prof H.J. Freund) in collaboration with the group of Joachim Sauer (HU Berlin).
  42. 2019: R. Kiessling et al., ACS Photonics 6, 3017–3023 (2019);
    Surface Phonon Polariton Resonance Imaging Using Long-Wave Infrared-Visible Sum-Frequency Generation Microscopy.
    Group of Alexander Paarmann (FHI) in collaboration with Joshua D. Caldwell (Vanderbilt University, USA) and Alexander J. Giles (US Naval Research Laboratory, USA).
  43. 2019: Y.-K. Li et al., Angew. Chem. Int. Ed. 58, 18868–18872 (2019); Direct Identification of Acetaldehyde Formation and Characterization of the Active Site in the [VPO4]+•/C2H4 Couple By Gas‐Phase Vibrational Spectroscopy.
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Helmut Schwarz (TU Berlin).
  44. 2019: J. B. Lee et al., Org. Lett. 21, 7004–7008 (2019); Annulative π‐Extension of Unactivated Benzene Derivatives through Nondirected C−H Arylation
    Group of Gert von Helden (FHI) in collaboration with Jongcheol Seo (POSTECH, South Korea) as well as Bum Suk Zhao and Sung You Hong (UNIST, South Korea).
  45. 2019: M. Lettow et al., Anal. Bioanal. Chem. 411, 4637–4645 (2019); The role of the mobile proton in fucose migration
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI).
  46. 2018: J. Vanbuel et al., Z. Phys. Chem. 233, 799–812 (2019); Hydrogen Chemisorption on Doubly Vanadium Doped Aluminum Clusters
    Group of André Fielicke (FHI) in collaboration with the groups of Ewald Janssens and Minh Tho Nguyen (KU Leuven, Belgium).
  47. 2019: D. A. Thomas et al., J. Am. Chem. Soc. 141, 5815-5823 (2019); Characterization of a trans-trans Carbonic Acid-Fluoride Complex by Infrared Action Spectroscopy in Helium Nanodroplets
    Group of Gert von Helden (FHI).
  48. 2019: E. Mucha et al., Chem. Sci. 10, 1272-1284 (2019); In-depth structural analysis of glycans in the gas phase
    Group of Kevin Pagel (FU Berlin & FHI).
  49. 2019: S. Debnath et al., J. Phys. Chem. C 123, 8439-8446 (2019); CO2 Adsorption on Ti3O6‐: A Novel Carbonate Binding Motif
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with Min Gao, Satoshi Maeda, Tetsuya Taketsugu, and Andrey Lyalin (Hokkaido University, Japan) and the group of Dan Neumark (UC Berkeley, USA).
  50. 2019: M. Marianski et al., J. Phys. Chem. C 123, 7845−7853 (2019); Structural Characterization of Molybdenum Oxide Nanoclusters Using Ion Mobility Spectrometry–Mass Spectrometry and Infrared Action Spectroscopy
    Group of Gert von Helden (FHI) in collaboration with the group of Annette Trunschke (FHI).
  51. 2018: E. Mucha et al., Nature Communications 9, 4174 (2018); Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI) in collaboration with the group of Peter Seeberger (MPI für Kolloid- und Grenzflächenforschung).
  52. 2018: A. E. Green et al., Angew. Chem. Int. Ed. 57,14822–14826 (2018); IR Signature of Size‐Selective CO2 Activation on Small Platinum Cluster Anions, Ptn‐ (n = 4‐7)
    Group of André Fielicke (FHI) in collaboration with the group of Stuart Mackenzie (University of Oxford, UK).
  53. 2018: R. Kiessling et al., Phys. Rev. Accel. Beams 21, 080702 (2018); Femtosecond single-shot timing and direct observation of subpulse formation in an infrared free-electron laser
    Group of Alexander Paarmann (FHI) in collaboration with Bill Colson (Compass Scientific Engineering, USA).
  54. 2018: M. Jia et al., J. Phys. Chem. C 122, 18247–18255 (2018); Size Dependent H2 Adsorption on AlnRh+ (n = 1–12) Clusters
    Group of André Fielicke (FHI) in collaboration with the group of Ewald Janssens (KU Leuven, Belgium).
  55. 2018: Z. Wu et al., Rev. Sci. Instrum. 89, 083107 (2018); Surface action spectroscopy with rare gas messenger atoms
    Group of Helmut Kuhlenbeck (FHI).
  56. 2018: N. C. Passler et al., Nano Lett. 18, 4285−4292 (2018).; Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures
    Group of Alexander Paarmann (FHI) in collaboration with the groups of Joshua D. Caldwell (Vanderbilt, USA), Stefan A. Maier (Imperial College London, UK), and Simone De Liberato (University of Southampton, UK).
  57. 2018: D. A. Thomas et al., Angew. Chem. Int. Ed. 57, 10615–10619 (2018); Ground‐State Structure of the Proton‐Bound Formate Dimer by Cold‐Ion Infrared Action Spectroscopy
    Group of Gert von Helden (FHI).
  58. 2018: S. Debnath et al., Angew. Chem. Int. Ed. 57, 7448–7452 (2018); Experimental Identification of the Active Site in the Heteronuclear [AlVOx]+•/CO/N2O (x = 3, 4) Redox Couples by Gas-Phase IR Spectroscopy
    German version: Angew. Chem. 130, 7570–7574 (2018); Experimentelle Bestimmung des aktiven Zentrums im heteronuklearen Redox-System [AlVOx]+•/CO/N2O (x = 3, 4) durch Gasphasen-Infrarotspektroskopie
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Helmut Schwarz (TU Berlin).
  59. 2018: E. Mucha et al., Angew. Chem. Int. Ed. 57, 7440–7443 (2018); Fucose Migration in Intact Protonated Glycan Ions: A Universal Phenomenon in Mass Spectrometry
    Groups of Kevin Pagel (FU Berlin & FHI) and Gert von Helden (FHI) in collaboration with the group of Peter Seeberger (MPI für Kolloid- und Grenzflächenforschung).
  60. 2018: C. J. Winta et al., Phys. Rev. B 97, 094108 (2018); Second-harmonic phonon spectroscopy of α-quartz
    Group of Alexander Paarmann (FHI).
  61. 2018: D. A. Thomas et al., J. Phys. Chem. Lett. 9, 2305−2310 (2018); Vibrational Spectroscopy of Fluoroformate, FCO2-, Trapped in Helium Nanodroplets
    Group of Gert von Helden (FHI).
  62. 2018: V. Scutelnic et al., J. Am. Chem. Soc. 140, 7554–7560 (2018); The Structure of the Protonated Serine Octamer
    Group of Gert von Helden (FHI) in collaboration with the groups of Thomas R. Rizzo and Ursula Rothlisberger (EPFL, Switzerland), and Mike Bowers (UC Santa Barbara, USA).
  63. 2018: T. K. Esser et al., J. Phys. Chem. Lett. 9, 798−803 (2018); Deconstructing Prominent Bands in the Terahertz Spectra of H7O3+ and H9O4+: Intermolecular Modes in Eigen Clusters
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Joel Bowman (Emory University, Atlanta, GA, USA).
  64. 2018: W. Hoffmann et al., J. Am. Chem. Soc. 140, 244–249 (2018); NFGAIL Amyloid Oligomers: The Onset of Beta-Sheet Formation and the Mechanism for Fibril Formation
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI) and Mike Bowers (UC Santa Barbara, USA).
  65. 2017: J. Vanbuel et al., Top. Catal. 61, 62–70 (2018); Competitive Molecular and Dissociative Hydrogen Chemisorption on Size Selected Doubly Rhodium Doped Aluminum Clusters
    Group of André Fielicke (FHI) in collaboration with the group of Ewald Janssens (KU Leuven, Belgium).
  66. 2017: M. L. Weichman et al., Top. Catal. 61, 92–105 (2018); Dissociative Water Adsorption on Gas-Phase Titanium Dioxide Cluster Anions Probed with Infrared Photodissociation Spectroscopy
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Dan Neumark (UC Berkeley, USA).
  67. 2017: J. Vanbuel et al., Chem. Eur. J. 23, 15638-15643 (2017); Hydrogen Chemisorption on Singly Vanadium-Doped Aluminum Clusters
    Group of André Fielicke (FHI) in collaboration with the group of Ewald Janssens (KU Leuven, Belgium).
  68. 2017: Z. Wu et al., Phys. Rev. Lett. 119, 136101 (2017); Vibrational action spectroscopy of solids: New surface-sensitive technique
    Group of Helmut Kuhlenbeck (FHI Dept. Chemical Physics; Prof H.J. Freund) in collaboration with Volker Staemmler (Ruhr-Universität Bochum).
  69. 2017: X. Song et al., Phys. Chem. Chem. Phys. 19, 23154 (2017); Excess Charge Driven Dissociative Hydrogen Adsorption on Ti2O4-
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with Min Gao, Satoshi Maeda, Tetsuya Taketsugu, and Andrey Lyalin (Hokkaido University, Japan).
  70. 2017: S. Warnke et al., J. Am. Soc. Mass Spectrom. 28, 638–646 (2017); From Compact to String-The Role of Secondary and Tertiary Structure in Charge-Induced Unzipping of Gas-Phase Proteins
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI).
  71. 2017: J. Seo et al., Nature Chemistry 9, 1263–1268 (2017); Infrared spectrum and structure of the homochiral serine octamer-dichloride complex
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI) and Mike Bowers (UC Santa Barbara, USA).
  72. 2017: J. Seo et al., Int. J. Mass Spectrum. 429, 115-120 (2018); Side-chain effects on the structures of protonated amino acid dimers: A gas-phase infrared spectroscopy study
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI) and Mike Bowers (UC Santa Barbara, USA).
  73. 2017: E. Mucha et al., Angew. Chem. Int. Ed. 56, 11248–11251 (2017); Glycan Fingerprinting using Cold-Ion Infrared Spectroscopy
    German version: Angew. Chem. 129, 11400–11404 (2017); Fingerabdrücke für Glykane durch Spektroskopie kalter Ionen
    Groups of Gert von Helden (FHI) and Kevin Pagel (FU Berlin & FHI) in collaboration with the group of Peter Seeberger (MPI für Kolloid- und Grenzflächenforschung).
  74. 2017: N. C. Passler et al., ACS Photonics 4 (5), 1048–1053 (2017); Second Harmonic Generation from Critically Coupled Surface Phonon Polaritons
    Group of Alexander Paarmann (FHI).
  75. 2017: N. X. Truong et al., J. Phys. Chem. C 121, 9560−9571 (2017); Infrared Spectroscopy and Structures of Boron-Doped Silicon Clusters (SinBm, n=3-8, m=1-2)
    Group of André Fielicke (TU Berlin & FHI) in collaboration with the group of Otto Dopfer (TU Berlin).
  76. 2017: M. Fagiani et al., J. Phys. Chem. Lett. 8, 1272–1277 (2017); Dissociative Water Adsorption by Al3O4+ in the Gas Phase
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Joachim Sauer (HU Berlin).
  77. 2017: X. Song et al., Chem. Phys. Chem. 18 (8), 868–872 (2017); Gas Phase Vibrational Spectroscopy of the Aluminum Oxide Anions (Al2O3)1-6AlO2-
    See also the Cover Picture of Chem. Phys. Chem.
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Joachim Sauer (HU Berlin).
  78. 2017: P. Ferrari et al., Chem. Eur. J. 23, 4120–4127 (2017); Effects of Charge Transfer on the Adsorption of CO on Small Molybdenum-Doped Platinum Clusters
    Group of André Fielicke (TU Berlin & FHI) in collaboration with the groups of Ewald Janssens and Minh Tho Nguyen (KU Leuven, Belgium).
  79. 2017: M. Fagiani et al., Angew. Chem. Int. Ed. 56, 501–504, (2017); Structure and Fluxionality of B13+ Probed by Infrared Photodissociation Spectroscopy
    See also the Cover Picture of Angew. Chem. Int. Ed.
    German version: Angew. Chem. 129, 515–519 (2017); Untersuchung der Struktur und Dynamik des B13+ mithilfe der Infrarot-Photodissoziationsspektroskopie
    See also the Cover Picture of Angew. Chem. (German edition)
    Groups of Knut Asmis and Thomas Heine (both Leipzig University) in collaboration with André Fielicke (TU Berlin & FHI).
  80. 2017: J. Seo et al., Nature Chemistry 9, 39–44 (2017); An infrared spectroscopy approach to follow β-sheet formation in peptide amyloid assemblies
    Group of Kevin Pagel (FU Berlin & FHI) in collaboration with Gert von Helden (FHI) and Mike Bowers (UC Santa Barbara, USA).
  81. 2016: J. Seo et al., J. Am. Chem. Soc. 138, 16315–16321 (2016); Stacking Geometries of Early Protoporphyrin IX Aggregates Revealed by Gas-Phase Infrared Spectroscopy
    Group of Gert von Helden (FHI).
  82. 2016: I. Razdolski et al., Nano Lett. 16, 6954−6959 (2016); Resonant Enhancement of Second-Harmonic Generation in the Mid-Infrared Using Localized Surface Phonon Polaritons in Subdiffractional Nanostructures
    Group of Alexander Paarmann (FHI) in collaboration with the groups of Joshua D. Caldwell (NRL, Washington DC, USA), Stefan A. Maier (Imperial College London, UK), and Yiguo Chen (National University of Singapore).
  83. 2016: A. Paarmann et al., Phys. Rev. B 94, 134312 (2016); Effects of crystal anisotropy on optical phonon resonances in midinfrared second harmonic response of SiC
    Group of Alexander Paarmann (FHI).
  84. 2016: G. von Helden, W. Schöllkopf, K. Pagel, Jahrbuch der Max-Planck-Gesellschaft 2016; Structures of peptide aggregates investigated with the new Fritz Haber Institute free electron laser
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI).
  85. 2016: J. Seo et al., Angew. Chem. Int. Ed. 55, 14173–14176 (2016); Retention of Native Protein Structures in the Absence of Solvent: A Coupled Ion Mobility and Spectroscopic Study
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI) and Mike Bowers (UC Santa Barbara, USA).
  86. 2016: J. Seo et al., Phys. Chem. Chem. Phys. 18, 25474–25482 (2016); The impact of environment and resonance effects on the site of protonation of aminobenzoic acid derivatives
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI) and Mike Bowers (UC Santa Barbara, USA).
  87. 2016: M. Fagiani et al., Phys. Chem. Chem. Phys. 18, 26743–26754 (2016); Gas Phase Vibrational Spectroscopy of the Protonated Water Pentamer: The Role of Isomers and Nuclear Quantum Effects
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Mark Johnson (Yale University, USA) as well as Marie-Pierre Gaigeot and Riccardo Spezia (Université d’Evry, France).
  88. 2016: W. Hoffmann et al., Phys. Chem. Chem. Phys. 18, 19950-19954 (2016); Assessing the stability of alanine-based helices by conformer-selective IR spectroscopy
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI).
  89. 2016: A. Yanagimachi et al., J. Phys. Chem. C 120 (26), 14209–14215 (2016); Size-Specific, Dissociative Activation of Carbon Dioxide by Cobalt Cluster Anions
    Group of André Fielicke (TU Berlin & FHI) in collaboration with the group of Tatsuya Tsukuda (University of Tokyo).
  90. 2016: X. Song et al., J. Chem. Phys. 144, 244305 (2016); Gas phase structures and charge localization in small aluminum oxide anions: Infrared photodissociation spectroscopy and electronic structure calculations
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Joachim Sauer (HU Berlin).
  91. 2016: M. L. Weichman et al., J. Chem. Phys. 144, 124308 (2016); Gas phase vibrational spectroscopy of cold (TiO2)n- (n = 3–8) clusters
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Dan Neumark (UC Berkeley, USA).
  92. 2016: A. I. González Flórez et al., Angew. Chem. Int. Ed. 55, 3295–3299 (2016); Charge-Induced Unzipping of Isolated Proteins to a Defined Secondary Structure
    See also the Cover Picture of Angew. Chem. Int. Ed.
    German version: Angew. Chem. 128, 3356–3360 (2016); Ladungsinduziertes Entwinden isolierter Proteine zu einer definierten Sekundärstruktur
    See also the Cover Picture of Angew. Chem. (German edition)
    Group of Gert von Helden (FHI) in collaboration with Kevin Pagel (FU Berlin & FHI).
  93. 2016: N. X. Truong et al., Int. J. Mass Spectrom. 395, 1–6 (2016); Characterization of neutral boron-silicon clusters using infrared spectroscopy: The case of Si6B
    Group of André Fielicke (TU Berlin & FHI) in collaboration with the group of Otto Dopfer (TU Berlin).
  94. 2015: A. Paarmann et al., Appl. Phys. Lett. 107, 081101 (2015); Second harmonic generation spectroscopy in the Reststrahl band of SiC using an infrared free-electron laser
    Group of Alexander Paarmann (FHI).
  95. 2015: A. I. González Flórez et al., Phys. Chem. Chem. Phys. 17, 21902 (2015); IR spectroscopy of protonated leu-enkephalin and its 18-crown-6 complex embedded in helium droplets
    Group of Gert von Helden (FHI).
  96. 2015: S. Warnke et al., J. Am. Chem. Soc., 137, 4236−4242 (2015); Protomers of Benzocaine: Solvent and Permittivity Dependence
    Group of Gert von Helden (FHI) in collaboration with groups from Antwerp (Belgium), Warwick (UK), Santa Barbara (USA), and FU Berlin (Germany).
  97. 2014: J. A. Fournier et al., PNAS 111 (51), 18132−18137 (2014); Magic H3O+(H2O)20 and Cs+(H2O)20 clusters
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Mark Johnson (Yale University, USA).
  98. 2014: G. B. S. Miller et al., Angew. Chem. Int. Ed. 126 (52), 14635–14638 (2014); Structure of the anionic ClMgCO2- complex
    Group of Knut Asmis (FHI & Leipzig University) in collaboration with the group of Einar Uggerud (University of Oslo, Norway).
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