Doctoral Thesis            

Geschwindigkeitsabhängigkeit von Penningionisationsquerschnitten und Ionisation von atomarem Sauerstoff durch metastabiles Helium

Habilitation            

Negative Ionen in der Gasphase

Books and Bookchapters            

Gaseous Molecular Ions. An Introduction to Elementary Processes Induced by Ionization

Linking the Gaseous and Condensed Phases of Matter: The Behaviour of Slow Electrons

Electronic Excitations in Liquefied Rare Gases

Articles 1971-1990            

Penning Electron Spectra from Ionization of Hydrogen Atoms by He(21S) and He(23S) Metastables

Velocity Dependence of Total Penning Ionization Cross Section

Fragmentierungsverhalten von Halogenmethanen beim Stoß von monochromatischen Elektronen niedriger Energie (0-10 eV)

Negative Ion Formation in CF₂Cl₂, CF₃Cl and CFCl₃ Following Low Energy Impact (0-10 eV) with Near Monoenergetic Electrons

Dissociative Electron Attachment to CCl₄, CHCl₃, CH₂Cl₂, and CH₃Cl

Measurement of Translational Excess Energy in Dissociative Electron Attachment Processes

Interaction of CFCl₃ with an Fe(100) Surface. Adsorption and Decomposition at Ambient Temperatures

A Method to Determine Excess Energies in Dissociative Electron Attachment Processes

Dissociative Attachment and Ion Pair Formation in CF₄, CHF₃, CH₂F₂, and CH₃F under Low Energy (0-20 eV) Electron Impact

The Dissociation of the 2P Fluoroethylene Anions

Fluorchlorkohlenwasserstoffe - Gefahr für unser natürliches UV Filter

Negative Ion Mass Spectrometry for Identification of Structural Isomers

Theoretical and Experimental Investigation of the Electron Affinities of Allene and Propyne

Electron Attachment Spectroscopy: Formation and Dissociation of Negative Ions in the Fluorochloroethylenes

Molecular Anions in the Gas Phase Observed in Electron Transmission and Electron Attachment Spectroscopy

Massenspektrometrie mit negativen Ionen

Low Energy Impact on Benzene and the Fluorobenzenes: Formation and Dissociation of Negative Ions

Formation and Dissociation of the Chloroethyleneanions

Experimental and Theoretical Investigation of the Azide Anion (N₃^-) in the Gas Phase

The Stability of the Bifluoride Ion (HF₂^-) in the Gas Phase

The Isomers CF₃NC and CF₃CN: Formation and Dissociation of the Anions Formed on Electron Attachment

Electron Attachment by Saturated Nitriles, Acrylonitrile (C₂H₃CN) and Benzonitrile (C₆H₅CN)

Electron Attachment by CF₃I: an Example of a Completely Unbalanced Distribution of Excess Energy

The Unimolecular Decomposition of the Fluoroethylene Anions

CN^- Formation Following Electron Attachment to Cyanogen ((CN)₂)

The Interaction of CFCl₃ and CF₂Cl₂ with Solid Surfaces Studied by Thermal Desorption Mass Spectroscopy

Associative and Dissociative Electron Attachment to SF₆ and SF₅Cl

Formation and Dissociation of Negative Ion Resonances in Methanol and Allylalcohol

Negative Ion Formation in SF₅NCO Following Resonance Electron Attachment

Negative Ion Formation in Fluoroacetonitrile and Chloroacetonitrile Following Low Energy Electron Impact

Formation of CF₄^- from CF₄ Clusters

Energy Partitioning in the Decomposition of Cyclic Perfluororadical Anions

Observation of CF₃Cl^- in the Gas Phase Following Electron Attachment to CF₃Cl Clusters

Mass Spectrometric Study of Negative Ions from Unsaturated Carbonyls

Gas Phase Negative Ion Chemistry (Review)

Formation of CN^- under Low Energy Electron Impact on CH₃CN, CH₂FCN and CH₂ClCN

Low Energy (0-10 eV) Electron Attachment to CF₃Cl Clusters: Formation of Product Ions and Analysis of Excess Translational Energy

Electron Capture Induced Reactions in CF₄ Clusters

Electron Capture Induced Reactions in Molecules and Molecular Aggregates (Review)

Formation of Solvated Ions by Electron Capture in van der Waals Aggregates

Energy and Charge Transfer in Clusters of Organic Molecules Following Resonant Electron Capture

Articles 1991-2000            

Observation of Dipole Bound CH₃CN^- Following Electron Attachment to CH₃CN Clusters

Violation of the sigma Selection Rule in Electron Attachment to O₂ Clusters

Electron Attachment Processes in Molecular Aggregates

Polycyclic Aromatic Hydrocarbons (PAHs): Negative Ion Formation Following Low Energy (0-15 eV) Electron Impact

Dissociative Electron Attachment to Singlet Oxygen

Chemical Reactions in Heterogeneous Clusters Induced by Low Energy Electrons

Negative Ion Chemistry in Clusters

Mechanisms of Anion Formation in O₂, O₂/Ar, and O₂/Ne Clusters: The Role of Inelastic Scattering

Role of Inelastic Scattering by N₂ in the Formation of (O₂)_n^- Anions in Mixed O₂/N₂ Clusters

Electron Attachment Reactions in Molecular Clusters (Review)

Scattering of Slow Electrons from Excited Atoms: The Dominant Role of the Polarization Potential

Optically Enhanced Dissociative Electron Attachment in SO₂

Low Energy Electron Stimulated Desorption of Anions from Condensed CF₄

Anion Formation from Gaseous and Condensed CF₃I on Low Energy Electron Impact

Single and Double Ionization Potentials of Polycyclic Aromatic Hydrocarbons and Fullerenes by Photon and Electron Impact

Electron Stimulated Desorption of Anions from Condensed and Adsorbed CFCl₃ Down to Very Low Energies (<2 eV)

Dissociative Electron Attachment to Condensed and Adsorbed Halomethanes

Formation of C₆₀^- and C₇₀^- by Free Electron Attachment: Activation Barrier and Effect of Internal Energy on the Lifetime

Photodetachment of Anions in a Drift Tube. Application to SF₆^-

Temperature Effectes of Ultrafast Dissociative Electron Attachment to CF₃Cl

Formation and Decay of C₆₀^- Formed by Free Electron Capture by C₆₀

Effective Intermolecular Relaxation in (C₆F₆)_n^- Clusters. Mechanism of C₆F₆^- Formation on Low Energy Electron Impact

Interaction of Slow Electrons (0-10 eV) with Gaseous and Condensed Perfluorocompounds

Formation of SF₅^- in Electron Attachment to SF₆; Swarm and Beam Results Reconciled

Electron Attachment Reactions in Mixed SF₆/N₂ Clusters

Strong Solvation Effects in the Reactivity of C₆F₅X^- Anions (X=Cl, Br, I). Competition between Associative and Dissociative Processes

Formation and Decay of Negativ Ion Resonances in Gaseous and Condensed Molecules (Review)

The Reactivity of Slow Electrons with Molecules at Different Stages of Aggregation: Gas Phase, Clusters and Condensed Phase (Review)

Three-Fold Differential Electron-Stimulated Desorption Yields of D-Anions from Multilayer Films of D₂O and ND₃ Condensed on Platinum

Electron Attachment to XCN (X=Cl, Br). Competion between X^- and CN^- Formation

Low Energy Electron Attachment to Mixed Ozone/Oxygen Clusters

Electron Transfer Processes in Mixed Clusters via the N₂^-(²P_g) Resonance

Observation of the Nucleophilic Displacement (SN₂) Reaction F^- + CH₃Br -> CH₃F + Br^- Induced by Dissociative Electron Attachment in Binary Clusters

Temperature Effects in Electron Attachment Processes

Kinetic Energy Release of F^- Desorption from Condensed CF₄ Following Low Energy Electron Impact

Electron Attachment to Molecules and Clusters of Atmospheric Relevance: Oxygen and Ozone

Free Electron Attachment and Rydberg Electron Transfer to NF₃ Molecules and Clusters

Dissociative Electron Attachment to NO and NO Clusters

Dissociative Electron Attachment to Gas and Condensed Phase CF₃Cl: Anion Desorption and Charge Trapping

Resonant Dissociation of DNA Bases by Sub-Ionization Electrons

Dissociative Electron Attachment and Charging on Condensed SF₆

Competition Between Reactivity and Relaxation in Electron Attachment to Molecules. A Case Study in C₆F₅X (X=F, Cl, Br, I) under Different Degrees of Aggregation

Formation of NO^- Following Electron Attachment NO Clusters

Effects of Temperature on the Dissociative Electron Attachment to N₂O

Medium Enhanced, Electron Stimulated Desorption of CF₃^- from Condensed CF₃I

Electron Attachment to Free and Bound Molecules (Review)

Comment on "Detection of New Dissociative Electron Attachment Channels in NO"

Nucleophilic Displacement (SN₂) Reactions in Binary van der Waals Clusters Induced by Resonant Electron Capture

Structure and Mobility of Positive and Negative Ions in Non-Polar Liquids (Review)

Electron Stimulated Desorption of O^- from O₂ adsorbed on CD₃CN: Substrate Mediated Low Energy Reaction Pathways

Formation and Evolution of Negative Ion Resonances in Gas Phase and Condensed Phase CHFCl₂

Low Energy Dissociation of OClO Following Electron Capture

The Energy of Negative Ions on the Surface of a Rare Gas Solid

Electron Stimulated Desorption of F^- from condensed NF₃^-. Unexpected narrow resonances in the low energy (0-4 eV) desorption yield

Negative Ion Formation in Low Energy Electron Impact to Gas Phase and Condensed Phase CHF₂Cl

Stabilization of Transient Negative Ions by Vibrational Energy Transfer: A Cluster and Thin Fim Study on SF₆ and C₆F₆

The Nucleophilic Displacement (SN₂) Reaction F^- + CH₃Cl —> CH₃F + Cl^- Induced by Resonant Electron Capture in Gas Phase Clusters

Dissociative Electron Attachment to Gas Phase Bromouracil

Negative Ion Formation from Low Energy (0-15 eV) Electron Impact to CF₂Cl₂ under Different Phase Conditions

Electron Attachment to Complex Molecules

Kinetics of Nucleation of Electronegative Molecules on Krypton Film at Cryogenic Temperatures

Articles 2001-2006            

Electron Stimulated Desorption from Molecules on a Noble Gas solid: an Analysis of Cluster and Island Formation upon Desorption

Desorption of O^- and O₂^- from Condensed Ozone: Implications for the Heterogeneous Photochemistry of Stratospheric Ozone

Modification of an NF₃ Film by Subexcitation Electrons

Sensitizing DNA to Secondary Electron Damage: Resonant Formation of Oxidative Radicals from 5-Halouracils

Unusual Temperature Dependence in Dissociative Electron Attachment to 1,4-Chlorobromobenzene

Aleksandar Stamatovic. A Personal View of an Old Friend and Colleague

Dissociation Pathways in Low Energy (0-2 eV) Electron Attachment to ClOCl

Conjecture on the Lifetime of Delocalized Electrons in Helium

Low Energy Electron-Molecule Interactions

Electronic Processes in Liquid Helium

On the Processes of Photo-Induced Desorption of Sodium Atoms

Low Energy Electron Attachment to SF₅CF₃

Electron Attachment to C₂F₅I Molecules and Clusters

Electronic processes and electric breakdown of liquid helium

Charged particles in the bulk and near the surface of a non-polar liquid dielectric

Structure and energy spectrum of negative ions in non-polar liquids

Synthesis of Cl₂ Induced by Low Energy (0-18 eV) Electron Impact to Condensed 1,2-C₂F₄Cl₂ Molecules

Formation of Anion Fragments from Gas Phase Glycine by Low Energy (0-15 eV) Electron Impact

Dissociative Electron Attachment to Formic Acid (HCOOH)

Dissociative Electron Attachment Study to Nitromethane

Energy Balance in Dissociative Attachment to C₂F₅I

Probing Biomolecules: Gas Phase Experiments and Biological Relevance

Electron Attachment to 1,2-C₂F₄Cl₂ Molecules and Clusters

Dissociative Electron Attachment to CHBr₃ and CHI₃

Formation and Evolution of Negative Ion Resonances at Surfaces

Electron Attachment to Simple Organic Acids

Low Energy Electrons in Non-Polar Liquids

Loucas G. Christophorou. On the Occasion on his 65^th Birthday

Electron Attachment to C₂Cl₄ and Trojan Horse Ionisation

Formation of Negative Ions from Gas Phase Halo-Uracils by Low-Energy (0-18 eV) Electron Impact

Dissociative Electron Attachment to H₂O₂: A Very Effective Source for OH Radicals and OH^- Anions

Electron Attachment to Uracil: Effective Destruction at Subexcitation Energies

Temperature Dependence of Dissociative Electron Attachment to CH₂ClBr: Competition between Cl^- and Br^- Formation

Dissociative Energy Electron Attachment to Acetic Acid

Stability of Negative Ions Near the Surface of a Solid

Anomalous Mobility of Negative Charges in Liquid Hydrogen: A Model of Ionic Bubble

Complete Chemical Transformation of a Molecular Film by Subexcitation Electrons

Electronic Conduction and Breakdown in Liquid Helium and Liquid Neon

Low Energy Electron Interaction with Free and Bound SF₅CF₃: Negative Ion Formation from Single Molecules, Clusters and Nanofilms

Dehydrogenation of Adenine Induced by Slow (< 3 eV) Electrons

Electron Attachment to Chlorouracil: A Comparison Between 6-ClU and 5-ClU

Thymine Excision from DNA by Subexcitation Energies

Conversion of Amino Acids by Electrons at Subexcitation Energies

Surface Modification of Polyamides by Direct Fluorination

Reactions of Amide Group with Fluorine as Revealed with Surface Analytics

Low Energy Electron Driven Reactions in Free and Bound Molecules: From Unimolecular Processes in the Gas Phase to Complex Reactions in a Condensed Environment (Review)

Site-Specific Dissociation of DNA Bases by Slow Electrons at Early Stages of Irradiation

Degradation of Vitamin C by Electrons

Dissociative Electron Attachment to Excited SF₆: Selective IR Excitation Versus Thermal Activation

Fragmentation of Propanoic Acid by Subexcitation Electrons

Electron Attachment to Uracil, Thymine and Cytosine

Degradation of N-Acetyl-Tryptophan by Low Energy (< 12 eV) Electrons

Sensitization of 5-Bromouridine by Slow Electrons

A fluorescence based method to determine electron induced damage to DNA

Fragmentation of proline induced by slow electrons

Fragmentation of Tryptophan by Low-Energy Electrons

Electron stimulated desorption of Cl^- from adsorbed and condensed Cl₂: Effects of environment and orientation

Reactions in condensed formic acid (HCOOH) induced by low energy (< 20 eV) electrons

Bond-Selective H^- Abstraction from Thymine

Bindungsselektive H^- Abstraktion von Thymin

Efficient Formation of Difluoroamino Functionalities by Direct Fluorination of Polyamides

Low energy electron driven reactions in single formic acid molecules (HCOOH) and their homogeneous clusters

Electron stimulated desorption of anions from condensed XCN (X= Cl,Br): State selectivity in the desorption of fragment anions

Bond- and Site-Selective Loss of H^- from Pyrimidine Bases

The mobility of positive and negative ions in liquid xenon

Beyond the Bragg Peak: Hyperthermal Heavy Ion Damage to DNA-Components

Bond-selective dissociative electron attachment to thymine

Bond and site selective loss of H from nucleobases by low energy electrons (0-3 eV)

Bindungs- und ortsselektive Abspaltung von H-Atomen aus Nucleobasen, induziert durch Elektronen sehr niegriger Energie (< 3 eV)

Electron-driven molecular processes

Electron-driven molecular processes: A general introduction

Temperature dependence of electron attachment to CHCl₂Br: A crossed beams study

Decomposition of purine nucleobases by very low energy electrons

Modelling electron induced processes in “condensed” formic acid: resonant states of (HCOOH)₂^- at low energies

Microarray technology for the study of DNA-damage by low energy electrons

Reactions in trifluoroacetic acid (CF₃COOH) induced by low energy electron attachment

Hot Electrons in Liquefied Rare Gases and Electric Breakdown

Non-polar liquids as detection media in radiation detectors

Reactions in clusters of trifluoroacetic acid (CF₃COOH) triggered by subexcitation electrons

Decomposition of thymidine by low energy electrons. Implications for the molecular mechanisms of single strand breaks in DNA (VIP Article)

Fragmentierung von Thymidin durch niederenergetische Elektronen: Implikationen für den Mechanismus von Einzelstrangbrüchen in DNA (VIP Article)

10-100 eV Ar⁺ Ion Induced Damage to D-Ribose and 2-Deoxy-D-Ribose Molecules in Condensed Phase

Site selective excision of C5 from D-ribose by low energy (0-1 eV) electrons: Implications for the molecular mechanism of DNA damage by electrons

Selektive Abspaltung von C5 aus D-Ribose in der Gasphase durch niederenergetische Elektronen (<1 eV): Implikationen für den Mechanismus von DNA-Schädigungen

High resolution study of low energy electron attachment to SF₅Cl: Product anions and absolute cross sections

Reactive Scattering Damage to DNA Components by Hyperthermal Secondary Ions

Reactions in nanofilms of trifluoroacetic acid (CF₃COOH) driven by low energy electrons

Electron Scattering on Triatomic Molecules: The Need for Data

Dissociative Electron Attachment to Phosphoric Acid Esters. The Direct Mechanism for Single Strand Breaks in DNA

Fragmentation of Condensed Phase DNA Components by Hyperthermal He⁺ Impact

Dissociative Electron Attachment to Furan, Tetrahydrofuran and Fructose

IR photon enhanced dissociative electron attachment to SF₆: Dependence on photon, vibrational, and electron energy

Reactivity induced at 25 K by low-energy electron irradiation of condensed NH₃-CH₃COOD (1:1) mixture

Buchbesprechung von Gase, Nanosysteme, Flüssigkeiten (Bergmann-Schaefer, Lehrbuch der Experimentalphysik, Bd. 5, Hrsg. Karl Kleinermanns, de Gruyter, 2005)

Articles 2007            

Dissociative Electron Attachment to Ozone at Very Low Energies Revisited

Electron Stimulated Desorption of H^- from Condensed Acetic Acid

Low Energy Electron-Induced Reactions in Gas Phase 1,2,3,5-tetra-0-acetyl-β-D-ribofuranose: A Model System for the Behaviour of Sugar in DNA

Selective Bond Breaking in β-D-Ribose by Gas-Phase Electron Attachment around 8 eV

Bond and Site-Selectivity in Dissociative Electron Attachment to Gas Phase and Condensed Phase Ethanol and Trifluoroethanol

Energy Selective Excision of CN^- Following Electron Attachment to Hexafluoroacetone Azine ((CF₃)₂C=N-N=C(CF₃)₂)

Decomposition of propionyl chloride triggered by slow electrons

Probing Di-Nitrobenzene by Low Energy Electrons. Identification of Isomers via Resonances in Dissociative Electron Attachment

Dissociative Electron Attachment to Gas Phase Glycine: Exploring the Decomposition Pathways by Mass Separation of Isobaric Fragment Anions

Hyperthermal (1-100 eV) nitrogen ion scattering damage to D-ribose and 2-deoxy-D-ribose films

Evolution of Negative Ion Resonances at Surfaces: Effect of Environment and Orientation

Articles 2008            

Electron capture by pentafluoronitrobenzene and pentafluorobenzonitrile

Probing trinitrotoluene (TNT) by low-energy electrons: Strong fragmentation following attachment of electrons near 0 eV

Electron attachment to chloronitrobenzemne: Formation of negative ions from gas phase and condensed phase molecules