Main Content

Publications in scientific journals

If you are interested in a reprint / preprint, please send an e-mail to Karl-Michael Weitzel
()

  • Inhalt ausklappen Inhalt einklappen since 2016since 2016

    V. Motta, M. Schäfer, J. Hühn, R. Zierold, R.H. Blick, W.J. Parak, and K.-M. Weitzel
    Ion selectiv transport of alkali ions through a polyelectrolyte membrane 
    Adv. Mater Interfaces 2020, 2000419, available as pdf

    V. Motta, M. Schäfer, F. Noll, N. Hampp, and K.-M. Weitzel
    Pathways of alkali ion transport in mold compounds,
    ECS Journal of Solid State Science and Technology, accepted 26.5.2020

    K. Rein, M. Schäfer, and K.-M. Weitzel,
    The role of dieelectric breakdown in electro-thermal poling of D263T glass
    IEEE Transactions on dielectrics and electrical insulation, in press 27.4.2020

    S. Lehmann and K.-M. Weitzel,
    Coincident measurement of photo-ion circular dichroism and photo-electron circular dichroism
    Phys. Chem. Chem. Phys., accepted 26.5.2020, available as pdf
    DOI

    V. Schäfer, K.-M. Weitzel,
    Qualitative and quantitative distinction of ortho-, meta- and para-fluorotoluene by means of chirped femtosecond laser ionization.
    Analytical Chemistry, 92, 5492-5499,(2020)
    DOI

    M. Schäfer, D. Budina, K.-M. Weitzel,
    Site energy distribution of sodium ions in a
    sodium rubidium borate glass.
    Phys.Chem.Chem.Phys., 21, 26251, (2019)
    DOI

    J. Wiemer, K.-W. Weitzel
    Method and device for determining electrical conductivity.  
    PCT Int. Appl. WO 2018-EP83172 (DE 2017-102017128581), 6.6.2019, 47pp.;

    A. Hein, M. Schäfer, K.-M. Weitzel
    Electron attachment induced ion transport - Part I: Conductivities and activation energies.
    SSI 339, 114996, (2019)
    DOI

    A. Hein, M. Schäfer, K.-M. Weitzel
    Electron attachment induced ion transport - Part II:
    The evolution of blocking of charge transport.
    SSI 339, 114997, (2019)
    DOI

    S. Schuld, B. Harbrecht, K.-M. Weitzel
    Ionic work functions of alkali aluminosilicates - Correlations with structural and energetic landscapes.
    Int. J. Mass Spectrom. 435, 291–297, (2019)
    DOI

    M. Conrad, C. Pietzonka, J. Bernzen, V. Motta, K.-M. Weitzel, A.J. Karttunen, F. Kraus
    The fluoroperovskite TlMnF3
    ZAAC, 644, 1557–1561, (2018)
    DOI

    J. Wiemer, K.-M. Weitzel
    Remote access to electrical conductivity by charge attachment from an ambient pressure plasma
    Applied Physics Letters, 113, 052902, (2018)
    DOI

    R. Miyazaki, I. Sakaguchi, K.-M. Weitzel, T. Hihara
    Demonstration of the conductive species in “Li-free” solid solvent doped with LiBH4 and its Li+ dominating conduction mechanism
    Electrochimica Acta, 283, 1188-1194, (2018)
    DOI

    M. Schäfer, K.-M. Weitzel
    Site energy distributions of ions in the potential energy landscape of
    amorphous solids
    Materials Today Physics, 5, 12-19, (2018)
    DOI

    S. Schuld, R. Hausbrand, M. Fingerle, W. Jaegermann, K.-M.Weitzel
    Experimental Studies on Work Functions of Li+ Ions and Electrons in the Battery Electrode Material LiCoO2: A Thermodynamic Cycle combining Ionic and Electronic Structure
    Advanced Energy Materials, 8, 1703411, (2018), (featured on cover)
    DOI 

    N. Reusch, V. Krein, N. Wollscheid, and K.-M. Weitzel
    Distinction of Structural Isomers of Benzenediamin and Difluorobenzene by Means of Chirped Femtosecond Laser Ionization Mass Spectrometry
    Zeitschrift für Physikalische Chemie, 232, 689-703 (2018)
    DOI

    J. Martin, M. Gräf, T. Kramer, C. Jooss, M.-J. Choe, K. Thornton and K.-M. Weitzel.,
    Charge attachment induced transport - bulk and grain boundary diffusion of potassium in PrMnO3
    Phys. Chem. Chem Phys.,19,(2017),9762-9769
    DOI

    A. Hein, J. Martin, M. Schäfer, and K.-M. Weitzel
    Electrodiffusion versus Chemical Diffusion in Alkali Calcium 2 Phosphate Glasses: Implication of Structural Changes
    Journal of Physical Chemistry C, 121, 3203-3211  (2017)
    DOI 

    A. Mager, P.V. Menezes, J. Zakel, M. Schäfer, and K.-M. Weitzel
    Competing K+- and Ca++-ion transport in calcium-potassium-phosphate-glasses
    Journal of Non-Crystalline Solids, 452, 231-237 (2016)
    DOI 

    S. Schuld, Schuld, M. Diekmann, M. Schäfer, and K.-M. Weitzel
    The work function for Li+-ion emission from spodumene: A complete characterization of thermionic emission
    Journal of Applied Physics, 120, 185102 (2016)
    DOI 

    J. Martin, S. Mehrwald, M. Schäfer, T. Kramer, C. Jooss, K.-M. Weitzel
    Transport of ions in a mixed Na+/K+ ion conducting glass - electrodiffusion profiles and electrochemical interphase formation
    Electrochimica Acta, 191, 616–623 (2016)
    DOI

    K.-M. Weitzel
    Bombardment induced Ion Transport through Ion Conducting Glasses
    in „Diffusion Foundations: Progress in Ion Transport and Structure of Ion Conducting Compounds and Glasses“,
    Volume 6,  H. Mehrer (ed.), Trans Tech Publ. Ltd., p. 107-143, (2016)
    DOI

     V. Wesp, M. Hermann, M. Schäfer, J. Hühn, W. Parak, and K.-M. Weitzel
    Bombardment induced ion transport – Part IV: Ionic conductivity of ultra-thin polyelectrolyte multilayer films
    PCCP, 18, 4345-4351 (2016)
    featured on cover
    DOI

    H. Li, X.M. Tong, N. Schirmel, G. Urbasch, K.J. Betsch, S. Zherebtsov, F. Süßmann, A. Kessel, S.A. Trushin, G.G. Paulus, K.-M. Weitzel, M.F. Kling
    Intensity dependence of the dissociative ionization of DCl in few-cycle laser fields
    Journal of Physics B: Atomic, Molecular and Optical Physics, 49, 015601 (2016)
    DOI

  • Inhalt ausklappen Inhalt einklappen 2011-20152011-2015

    S. Schulze, K.-M. Weitzel
    On the transition from ballistic to electro-diffusive transport in free-standing nanometer sized polymer membranes
    Phys. Rev. E, 92, 052602 (2015)
    DOI

    J. Martin, M. Schäfer, K.-M. Weitzel
    Effect of structure and composition on the DC-conductivity in calcium phosphate glasses of the type x CaO ∙ (55-x) M2O ∙ 45 P2O5 (M:Na, K, Rb, Cs)
    Journal of Non-crystalline solids, 430, 73–78, (2015)
    DOI

    M. Schäfer, K.-M. Weitzel
    Numerical model for electro-poling
    Solid State Ionics, 282, 70–75, (2015)
    DOI

    N. Reusch, S. Griebe, J. Karges, and K.-M. Weitzel
    Photoionization yields in intense fs-laser fields – a systematic investigation of chirp effects
    ZPC, 229, 1729–1746, (2015)
    DOI

    N. Reusch and K.-M. Weitzel,
    Chiralität und Laserionisations-Massenspektrometrie
    Nachrichten aus der Chemie, 63, 802-804, (2015)
    DOI

    Till Uhlemann, Jens Wallauer, and Karl-Michael Weitzel
    Self-reactions in the HCl+ (DCl+) + HCl system: a state-selective investigation of the role of rotation
    PCCP, 17, 16454-16461  (2015)
    DOI

    V. Wesp, J. Zakel, M. Schäfer, I. Paulus, A. Greiner, and  K.-M. Weitzel
    Highways for ions in polymers - 3D–imaging of electrochemical interphase formation
    Electrochimica Acta, 170, 122–130 (2015)
    DOI

    D. Budina, J. Zakel, J. Martin, P.V. Menezes, M. Schäfer, and K.-M. Weitzel
    Bombardment induced transport of Rb+ through a K+ conducting glass versus K+ transport through a Rb+ conducting glass
    Z. Physik. Chem., 228, 609-621, (2014)
    DOI

    N. Reusch, N. Schirmel, and K.-M. Weitzel,
    Hydrogen migration in intense laser fields – analysis and control in concert,
    in “Progress in Ultrafast Intense Laser Science”, Vol. 11, Springer Series in Chemical Physics 109, Eds: Yamanouchi, Nam and Martin, p. 1-21,  (2014)

    S. Carregal-Romero, P. Rinklin, S. Schulze, M. Schäfer, A. Ott, D. Hühn, X. Yu, B. Wolfrum, K.-M. Weitzel, and W.J. Parak
    Ion transport through polyelectrolyte multilayers.
    Macromolecular Rapid Communications, 34, 1820-1826 (2013)
    DOI

    J. Martin, D. Budina, J. Zakel, M. Schäfer and K.-M. Weitzel
    Ionic conductivities of calcium-phosphate glasses
    Proceedings of the IEEE International Conference on Solid Dielectrics, Bologna, (2013)
    p. 1095-1098, (ISBN: 978-1-4673-4459-3 )

    N. Schirmel, N. Reusch, P. Horsch, and K.-M. Weitzel
    The formation of fragment ions (H+, H3+, CH3+) from ethane in intense femtosecond laser fields – from understanding to control
    Faraday Discussion, 163, 461-474, (2013)
    DOI

    J. Zakel, P.V. Menezes, M. Schäfer, and K.-M. Weitzel
    Low energy bombardment induced cesium ion transport through a sodium ion conductor:  oncentration profiles and diffusion coefficients
    Solid State Ionics, 242, 20-25, (2013)
    DOI

    S. Schulze, M. Schäfer, A. Greiner and K.-M. Weitzel
    Bombardment induced ion transport – Part III: Experimental potassium ion conductivities in poly(para-xylylene)
    PCCP, 15, 1481-1487, (2013)
    DOI

    R. Kanya, T. Kudou, N. Schirmel, S. Miura, K.-M. Weitzel, K. Hoshina, K. Yamanouchi
    Hydrogen scrambling in ethane induced by intense laser fields: statistical analysis of coincidence events
    J. Chem. Phys. 136, 204309 (2012);
    DOI

    L. Rossrucker, P.V. Menezes, J. Zakel, M. Schäfer, B. Roling and K.-M. Weitzel
    Bombardment induced potassium ion transport through a sodium ion conductor: conductivities and diffusion profiles
    Zeitschrift für Physikalische Chemie, 226, 341-353, (2012)
    DOI

    S. Schulze, J. Zakel, M. Schäfer and K.-M. Weitzel
    Potassium ion transport through poly-para-xylylene films
    IEEE-TDEI, 19, 1167-1174 (2012)
    DOI

    P. Horsch, G.Urbasch, K.-M. Weitzel
    Analysis of chirality by femtosecond laser ionization mass spectrometry
    Chirality, 24, 684-690, (2012)
    DOI

    H.G. Breunig, K.-M. Weitzel,
    Laser Ionization Spectroscopy in  “Methods in Physical Chemistry”, Editors: R. Schäfer and P.C. Schmidt,
    Wiley-VCH, Weinheim, pp. 29-62, (2012)

    M. Schäfer and K.-M. Weitzel
    Bombardment induced ion transport – Part I Numerical investigation of bombardment induced ion transport through glasses and membranes on the basis of the Nernst-Planck-Poisson equations
    PCCP, 13, 20112-20122  (2011)
    DOI

    P.V. Menezes, J. Martin, M. Schäfer, H. Staesche, B. Roling and K.-M. Weitzel
    Bombardment induced ion transport – Part II  Experimental potassium ion conductivities in borosilicate glass
    PCCP, 13, 20123-20128 (2011)
    DOI

    P.V. Menezes, J. Martin, M. Schäfer, K.-M. Weitzel
    Bombardment Induced Ion Transport Through an Ion-conducting Ca30 glass
    Proceedings of the ISE14, IEEE, p. 37-38  (2011)
    14th International Symposium on Electrets (ISE), p. 37-38 (2011)
    DOI

    M.V. Korolkov, K.-M. Weitzel
    Femtosecond interferometry of molecular dynamics – the role of relative and absolute phase of two individual laser pulses
    Z. Phys. Chem,  225, 1073-1088 (2011)
    DOI

    M.V. Korolkov, K.-M. Weitzel,
    Carrier envelope phase effects in photofragmentation: Orientation versus alignment
    Optics and Spectroscopy, 111, 606-617 (2011), (published online October-31-2011)
    DOI

    I. Znakovskaya, P. von den Hoff, N. Schirmel, G. Urbasch, S. Zherebtsov, B. Bergues, R. de Vivie-Riedle, K.-M. Weitzel, M. F. Kling,
    PCCP, , 13, 8653–8658, (2011)
    Waveform control of orientation-dependent ionization of DCl in few-cycle laser fields
    DOI

    P. Horsch, G. Urbasch, K.-M. Weitzel, Z. Phys. Chem., Z. Phys. Chem., 225, 587-594, (2011)
    Circular dichroism in ion yield in multiphoton ionization of (R)-propylene oxide employing femtosecond laser pulses
    DOI

    P. Kraus, M.C. Schwarzer, N. Schirmel, G. Urbasch, G. Frenking, K.-M. Weitzel, J. Chem. Phys., 134, 114302 (2011)
    Unusual mechanism for H3+ formation from ethane as obtained by femtosecond laser pulse ionization and quantum chemical calculations
    DOI

    K.-M. Weitzel, Mass Spectrom. Rev., 30, 221– 235, (2011)
    Bond-Dissociation Energies of Cations – Pushing the Limits to Quantum State Resolution.
    DOI

    P. Horsch, G. Urbasch, K.-M. Weitzel, D. Kröner
    PCCP, 13, 2378-2386 (2011)
    Circular dichroism in fs laser ionization – the role of laser pulse duration.
    DOI

  • Inhalt ausklappen Inhalt einklappen 2001-20102001-2010

    L. Paetow, F. Unger, B. Beutel, K.-M. Weitzel, J. Chem. Phys., 133, 234301 (2010)
    Rotational dependence of the proton-transfer reaction HBr+ + CO2 → HOCO+ + Br : 2.  Comparison of HBr+ (2P3/2) and HBr+ (2P1/2) ,
    DOI

    K.-M. Weitzel, H.-G. Breunig, G. Urbasch,
    Distinction of enantiomers with the aid of broadband femtosecond circular-dichroism mass spectrometry, Ger. Offen. DE 102008048085 (8.4.2010), see also WO 2010031387

    M. Schaefer, K. Lange, N. Rohmann, A. Schlemmer, B. Roling, K.-M. Weitzel, Proc. 2010 IEEE ICSD, Potsdam, Germany, pp. 655-658, (2010)
    On the transport of potassium ions through borosilicate glass - A combined experimental and theoretical study

    L. Paetow, F. Unger, W. Beichel, G. Frenking, K.-M. Weitzel, J. Chem. Phys., 132, 174305 (2010)
    Rotational dependence of the proton-transfer reaction HBr+  +  CO2  -->  HOCO+ +  Br.    I. Energy versus angular momentum effects
    DOI

    M.V. Korolkov, K.-M. Weitzel, Chem. Phys. Lett., 487, 209–213, (2010)
    Control of competing dissociation channels by femtosecond interferometry: Aspects of electron and nuclear dynamics.
    DOI

    T. Kolling, A. Schlemmer, C. Pietzonka, B. Harbrecht, K.-M. Weitzel,
    J. Appl. Phys., 107, 014105, (2010)
    Field effects in alkali ion emitters: Transition from Langmuir–Child to Schottky regime.
    DOI

    K. Schröck, S. Schulze, A. Schlemmer, K.-M. Weitzel., J. Phys. D Appl. Phys., 43, 025501, (2010)
    Time-correlated transport of potassium ions through a thin poly-p-xylylene membrane.
    DOI

    T. Kolling, E. Unger, S. Sun, K.-M. Weitzel, Thin solid films, 517, 4583-4586, (2009)
    Transport of Caesium ions through thin poly-p-xylylene (PPX) films.
    DOI

    H.G. Breunig, G. Urbasch, P. Horsch, J. Cordes, U. Koert, K.-M. Weitzel,
    ChemPhysChem, 10, 1199-1202, (2009)
    Circular Dichroism in Ion Yields of Femtosecond-Laser Mass Spectrometry.
    DOI

    H.G. Breunig, K.-M. Weitzel, Bunsenmagazin, 1, 20-34, (2009)
    Laser Ionization Spectroscopy.
    Link

    T. Kolling, S. Sun, K.-M. Weitzel, Int. J. Mass Spectrom., 277, 245–250, (2008)
    Reactive scattering of NH3+ (v, J) ions at film covered indium tin oxide (ITO) surfaces.
    DOI

    H.G. Breunig, G. Urbasch, K.-M. Weitzel, J. Chem. Phys., 128, 121101-1-4, (2008)
    Phase control of molecular fragmentation with a pair of femtosecond-laser pulses.
    DOI

    G. Urbasch, H.G. Breunig, K.-M. Weitzel, ChemPhysChem, 2007, 8, 2185-2188, (2007)
    Distinction of ortho- and para-Xylene by Femtosecond-Laser Mass Spectrometry
    DOI

    M.V. Korolkov, K.-M. Weitzel, Chem. Phys.,  338, 277-284, (2007)
    Laser pulse control of photofragmentation in DCl+: the effect of carrier envelope phase
    DOI

    S. Athenstaedt, F. Unger, K.-M. Weitzel, Z. Phys. Chem., 221, 571-584, (2007)
    Rotational dependence of the proton transfer reaction HBr+ (N+)  +  CO2   ->   HOCO+  +  Br
    DOI

    K.-M. Weitzel, ChemPhysChem, 8, 213-215, (2007)
    Controlling the electrons provides means for controlling chemistry (Highlight)
    DOI

    M.V. Korolkov, H.G. Breunig, K.-M. Weitzel, Optics and Spectroscopy, 103, 325-329, (2007)
    Control of branching ratio in the photofragmentation of DCl+ ions: effect of initial vibrational state
    DOI


    M.V. Korolkov, K.-M. Weitzel, J. Chem. Theory Comp., 2, 1492-1498,  (2006)
    On the Competition between Predissociation and Direct Dissociation in Deuterium Chloride Ions (DCl+)
    Link

    M.V. Korolkov, K.-M. Weitzel, J. Chem. Theory Comp., 2, 1492-1498,  (2006)
    On the Competition between Predissociation and Direct Dissociation in Deuterium Chloride Ions (DCl+)
    Link

    H.G. Breunig, A. Lauer, K.-M. Weitzel, J. Phys. Chem. A, 110, 6395-6398, (2006)
    Control of branching ratios in the dissociative ionization of deuterium chloride
    DOI


    S. Schulze, A. Paul, K.-M. Weitzel, Int. J. Mass Spectrom.,  Vol. 252, 189-196, (2006)
    Formation of C7H7+ Ions from Ethylbenzene and o-Xylene Ions: Fragmentation vs. Isomerization
    DOI

    H. G. Breunig, A. Lauer, K.-M. Weitzel, Femtochemistry VII: Fundamental Ultrafast Processes in Chemistry, Physics, and Biology; Castleman, A. W., Jr., Kimble, M. L., Eds.; Elsevier: Amsterdam, 2006, p. 500-504
    Controlling the dissociative ionization of DCl by femtosecond laser pulses

    M.V. Korolkov, K.-M. Weitzel, J. Phys. Chem. A, 110, 2924-2932, (2006)
    Kinetic and dynamic aspects of lifetime oscillations in the predissociation of hydrogen chloride ions
    DOI

    M.V. Korolkov, K.-M. Weitzel, J.Chem. Phys., 123, 164308, (2005)
    On the Control of Product Yields in the Photofragmentation of Deuteriumchlorid Ions (DCl+)
    DOI

    M. Nolde , K.-M. Weitzel, C. Western, PCCP, 7, 1527-1532, (2005)
    The Resonance Enhanced Multiphoton Ionisation Spectroscopy of Ammonia – Isotopomers NH3, NH2D, NHD2 and ND3.
    Link

    K.-M. Weitzel, PCCP, 7, 1343-1344, (2005)
    Editorial for Special issue: 85th International Bunsen-Discussion Meeting
    Link

    M. Michel , M.V. Korolkov  , K.-M. Weitzel, J. Phys. Chem. A, 108, 9924-9930, (2004)
    State-selective predissociation spectroscopy of HCl+ and DCl+ ions.
    DOI


    M. Michel, K.-M. Weitzel, Chem. Phys. Chem., 5 , 1507-1512, (2004)
    Two photon dissociation spectroscopy of state selected HCl+ and DCl+ ions.

    M. Hochlaf, K.-M. Weitzel, C.Y. Ng,  J. Chem. Phys., 120 , 6944-6956, (2004)
    Vacuum ultraviolet pulsed-field ionization-photoelectron study of H2S in the energy range of 10–17 eV.
    DOI

    M. Penno und Karl-Michael Weitzel, Z. Phys. Chem., 218 , 311-325, (2004)
    Rotational State Distribution of HBr+ Ions Formed by Resonance Enhanced Multiphoton Ionization.
    DOI

    M. Malow, K.-M. Weitzel, J. Phys. Chem. A, 107, 10625, (2003)
    The Kinetics of Methyl Loss from Ethylbenzene and Xylene Ions: The Tropylium versus Benzylium Story Revisited.

    K.-M. Weitzel, Astronomie und Raumfahrt, 39, 8-11, (2002)
    Die Chemie interstellarer Wolken.

    M. Michel, M.V. Korolkov, and K.-M. Weitzel, Phys. Chem. Chem. Phys., 4, 4083-4086, (2002)
    A new route to the dissociation energy of ionic and neutral HCl via lineshape analysis of single rotational transitions.

    K.-M. Weitzel, J. Mähnert, Int. J. Mass Spectrom., 214, 175-212, (2002)
    The binding energies of small Ar, CO and N2 cluster ions.

    F. Güthe, H. Baumgärtel, K.-M. Weitzel, J. Phys. Chem. A, 105, 7508-7513, (2001)
    Elementary reactions of energy selected fluoroethene and 1,1-difluoroethene ions:  II. The kinetics of HF-loss.

    M. Malow, K. Brembs and K.-M. Weitzel, Z. Phys. Chem., 215, 737-748, (2001)
    Ion-molecule reactions of state selected HCl+ ions with carbondioxide and ethene.

    M. Michel, M.V. Korolkov, M. Malow, K. Brembs and K.-M. Weitzel, Phys. Chem. Chem. Phys., Vol. 3, (2001), 2253-2257
    Unimolecular and bimolecular reactions of state selected HCl+ ions formed via the R(1) pump line of the f 3Delta2 <-- 1Sigma+ REMPI spectrum

    K.-M. Weitzel, G. K. Jarvis, M. Malow, T. Baer, Y. Song, C.Y. Ng, Phys. Rev. Lett, 86, 3526-3529, (2001)
    Observation of accurate ion dissociation thresholds in pulsed field ionization- photoelectron studies.

    M.V. Korolkov, K.-M. Weitzel, Chem. Phys. Lett., 336, 303-310, (2001)
    The spin-orbit induced predissociation dynamics of HCl+  ions:  rotational 'islands of stability'

  • Inhalt ausklappen Inhalt einklappen until 2000until 2000

    M. Korolkov, K.-M. Weitzel and S.D. Peyerimhoff,  Int. J. Mass Spectrom. (special theory issue), 201, 109, (2000)
    The spin-orbit induced predissociation dynamics of HCl+ and HBr+ ions: temporal and spectral representation.


    K.-M. Weitzel, in Adv. Ser. in Phys. Chem.: Photoionization and Photodetachment,
    C.Y. Ng (Ed.), World Scientific Publishing, (2000),  (ISBN 981-02-3892-4)
    Unimolecular reactions in molecular ions and cluster ions - thermal versus state-selective experiments.

    W.-K. Li, K.-C. Lau, C.Y. Ng, H. Baumgärtel, und K.-M. Weitzel, J. Phys. Chem.,
    104, 3197, (2000)
    Gaussian-2 and Gaussian-3 Study of the Energetics and Structures of Cl2On and Cl2On+,  n = 1-7.


    M. Korolkov, K.-M. Weitzel, Chem. Phys., 252, 209, (2000)
    The dynamics of predissociation of hydrogen bromide (HBr+) ions in the 2Sigma+ state,
    a numerical solution of coupled time dependent Schroedinger equations.


    G. K. Jarvis, K.-M. Weitzel, M. Malow, T. Baer, Y. Song, und C.Y. Ng,  communication to Phys. Chem. Chem. Phys. (PCCP), 1, 5259, (1999)
    High-Resolution Pulsed Field Ionization Photoelectron-Photoion Coincidence Study of
    C2H2: Accurate 0 K Dissociation Threshold for C2H+.


    K.-M. Weitzel, M. Malow, G. K. Jarvis, T. Baer, Y. Song, C.Y. Ng,  communication to J. Chem. Phys., 111, 8267, (1999)
    High-Resolution Pulsed Field Ionization Photoelectron Photoion Coincidence Study of CH4: Accurate 0 K Dissociation Threshold for CH3+


    F. Güthe, R. Locht, B. Leyh, H. Baumgärtel, K.-M. Weitzel, J. Phys. Chem. A, 103,  8404, (1999)
    Kinetic energy release distributions in the dissociation of energy selected fluoroethene and 1,1-difluoroethene ions.


    G. K. Jarvis, K.-M. Weitzel, M. Malow, T. Baer, Y. Song, C.Y. Ng, Rev. Sci. Instrum., 70, 3892, (1999)
    High Resolution Pulsed Field Ionization Photoelectron-Photoion Coincidence Spectroscopy Using Synchrotron Radiation

    A. Holzwarth, M. Penno and K.-M. Weitzel, Mol. Phys., 97, 43, (1999)
    State selective predissociation spectroscopy of the hydrogen chloride ion (HCl+) via the  2S+ <--  2P3/2 transition.

    M. Malow, F. Güthe and K.-M. Weitzel, Physical Chemistry Chemical Physics (PCCP), 1, 1425, (1999)
    The kinetics of H2 (D2) loss from C2H4+ (C2D4+) ions.

    K.-M. Weitzel, in the 'Bunsenmagazin',  1, 72 (1999)
    Book report on 'ZEKE Spectroscopy' by E.W. Schlag, Cambridge University Press, 1998

    K.-M. Weitzel, Chem. Phys., 237, 43, (1998)
    Ab initio study of the equilibrium conformation of the ArCO+ ion.

    K.-M. Weitzel, Ber. Bunsenges. Phys. Chem., ?Aspects and Topics?, 102, 989, (1998)
    Elementary reactions in molecular ions - from thermal towards state-selective experiments.

    M. Penno, A. Holzwarth and K.-M. Weitzel, J. Phys. Chem. A, 102, 1927, (1998)
    State selective predissociation spectroscopy of hydrogen bromide ions (HBr+) via the 2Sigma+  <--  2Pi(i=1/2, 3/2) transition.

    F. Güthe, M. Malow, K.-M. Weitzel and H. Baumgärtel, Int. J. Mass Spectrom. Ion Proc., 172, 47, (1998)
    Distinguishing the formation of C2D4+ ions from C2D6+ (by D2 loss) and from C2D5H+ (by HD loss) in a Reflectron spectrometer.

    K.-M. Weitzel, Shaker-Verlag, 1998, Aachen, ISBN  3-8265-3376-3
    Energetik, Kinetik, und Mechanismus von unimolekularen Elementarreaktionen in Molekuel- und Cluster-Ionen.

    K.-M. Weitzel, Trends in Chemical Physics, Research Trends, 6, 143, (1997)
    The role of rotation in the unimolecular dissociation of energy selected molecular ions.

    J. Mähnert, H. Baumgärtel, and K.-M. Weitzel, J. Chem. Phys., 107, 6667, (1997)
    The formation of ArCO+ ions by dissociative ionization of Argon / Carbonmonoxide Clusters.

    F. Güthe and K.-M. Weitzel, Ber. Bunsenges. Phys. Chem., 101, (1997), 484
    Measurement of the rate constant k(E) of the unimolecular H2 elimination from ethane radical cations in a Reflectron mass spectrometer.

    K.-M. Weitzel and F. Güthe, Chem. Phys. Lett., 251, 295, (1996)
    The distinction of direct and pulsed field ionized zero kinetic energy photoelectrons in electron / ion coincidence experiments.

    J. Mähnert, F. Güthe and K.-M. Weitzel, Ber. Bunsenges. Phys. Chem., 100, 1899, (1996)
    The determination of transition state properties in the Ethane and Ethene ion dissociation.

    K.-M. Weitzel and J. Mähnert, Z. Phys. Chem., 195, 181, (1996)
    The direct measurement of the rate constant k(E) for the reaction C2H6+ --> C2H4+ + H2.

    J. Mähnert, H. Baumgärtel and K.-M. Weitzel, J. Chem. Phys., 103, 7016, (1995)
    The investigation of the (CO)2+ ion by dissociative ionization of Argon / Carbon Monoxide clusters.

    J. Mähnert, H. Baumgärtel and K.-M. Weitzel, J. Chem. Phys., 102, 180, (1995)
    An investigation of the ArN2+ ion by the dissociative ionization of argon / nitrogen clusters.

    K.-M. Weitzel, F. Güthe, J. Mähnert, R. Locht and H. Baumgärtel, Chem. Phys., 201, 287, (1995)
    Statistical and non statistical reactions in energy selected fluoromethane ions.

    K.-M. Weitzel, J. Mähnert and M. Penno, Chem. Phys., 187, 117, (1994)
    Rotational effects in ionic reactions investigated by the ZEKE-PEPICO technique.

    K.-M. Weitzel, M. Penno, J. Mähnert and H. Baumgärtel, Z. Phys. D, 29, 195, (1994)
    On the role of dissociative ionization in the formation of argon dimer ions.

    K.-M. Weitzel, J. Mähnert and M. Penno, Chem. Phys. Lett., 224, 371, (1994)
    ZEKE-PEPICO investigations of dissociation energies in ionic reactions.

    K.-M. Weitzel, Int. J. Mass Spectrom. Ion Proc., 136, 1, (1994)
    Tunneling RRKM calculations for the H2 loss reaction from ethane ions on an ab initio potential energy surface.

    K.-M. Weitzel, M. Penno and H. Baumgärtel, in W. Waidelich, Hrsgb., Laser in der Technik, Springer Verlag, Berlin, 1994, S. 891
    Time resolved photoelectron spectroscopy after laser ionization.

    K.-M. Weitzel, J. Mähnert and H. Baumgärtel, Ber. Bunsenges. Phys. Chem., 97, 134, (1993)
    The determination of the transition state structure from the J dependence of the dissociation energy Eo(J): The methane and ethane ion dissociation.

    K.-M. Weitzel, Chem. Phys. Lett., 186, 490, (1991)
    On the distinction between tight and loose transition states in unimolecular reactions.

    K.-M. Weitzel, J. Booze und T. Baer, Chem. Phys., 150, 263, (1991)
    Shifts in photoionization fragmentation onsets - a direct measure of cooling in a supersonic molecular beam.

    T. Baer, J. Booze und K.-M. Weitzel, in "Vacuum Ultraviolet Ionization and
    Dissociation of Molecules and Clusters", C. Y. Ng (Hrsgb.), Singapore, World Scientific Publishing Co., 1991
    Photoelectron Photoion Coincidence Studies of Ion Dissociation Dynamics.

    J. Booze, K.-M. Weitzel und T. Baer, J. Chem. Phys., 94, 3649, (1991)
    The rates of HCl loss from energy selected ethylchloride ions: a case of tunneling through an H - atom transfer barrier.

    K.-M. Weitzel, J. Booze und T. Baer, Int. J. Mass Spectrom. Ion Proc., 107, 301, (1991)
    TPEPICO study of the ethane loss from energy selected n-pentane ions.

    K.-M. Weitzel, J. Booze und T. Baer, Z. Phys. D - Atoms, Molecules and Clusters, 18, 383, (1991)
    The metastable formation of di-ethylchloronium ions from ethylchloride dimer ions in a seeded molecular beam.

    H. Hippler, Ch. Riehn, J. Troe und K.-M. Weitzel, J. Phys. Chem., 94, 6321, (1990)
    C-C and C-H bond splits of laserexcited aromatic molecules.    III. UV multiphoton excitation studies.

    K. Luther, J. Troe und K.-M. Weitzel, J. Phys. Chem., 94, 316, (1990)
    C-C and C-H bond splits of laserexcited aromatic molecules. II. In situ measurements of branching ratios.

    J. Troe und K.-M. Weitzel, J. Chem. Phys., 88, 7030, (1988)
    MNDO calculations of stilbene potential energy properties relevant for the photoisomerization dynamics.

    K.-M. Weitzel und H. Bäßler J. Chem. Phys., 84, 1590, (1986)
    Semiempirical treatment of the benzophenone molecule as a function of twist angle