Lasermassenspektroskopie
Arbeitsgruppenleiter
Prof. Dr. Rainer Weinkauf
Heinrich-
Physikalische Chemie I
Raum 26.33.O2.36
40204 Düsseldorf
Tel. 0211/81 -
Fax 0211/81 -
Lasermassenspektroskopie
Publikationen der Arbeitsgruppe
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70 |
T1, T1 state energies and electron affinities of small ?,?-diphenylpolyenes investigated by anion photodetachment photoelectron spectroscopy and excited state theory.
F. Vogeler, S. Siegert, C.M. Marian, R. Weinkauf, Chem. Phys. Chem. 12 (2011) 1948- 1956 |
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69 |
Direct access to the dipole-forbidden n?* T1 state of p-benzoquinone by photodetachment potoelectron sectroscopy
S. Siegert, F. Vogeler, R. Weinkauf, Z. Phys. Chem. 225 (2011) 507 |
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68 |
Throwing light on dark states of ?-oligothiophenes of chain lengths 2 to 6: radical anion photoelectron spectroscopy and excited state theory.
S. Siegert, F. Vogeler, C.M. Marian, R. Weinkauf, Phys. Chem. Chem. Phys. 13, (2011) 10350-10363 |
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67 |
Rotationally resolved electronic spectroscopy of 5-methoxyindole.
Ch. Brand, O. Oeltermann, D. Pratt, R. Weinkauf, W. L. Meerts, W. van der Zande, K. Kleinermanns, M. Schmitt, J. Chem. Phys. 133 (2010) 024303. |
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66 |
Direct spectroscopy of contact charge transfer states: Possible consequences for tryptophan excited-state deactivation pathways by O2 and formation of reactive oxygen species.
S. Siegert, F. Vogeler, J. Schiedt, R.Weinkauf, Phys. Chem. Chem. Phys. 12 (2010) 4996-5006. |
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65 |
The Conformational Landscape of 5-Methoxytryptamine Studied by Rotationally Resolved Flourescence Spectroscopy and Resonant Ionization Spectroscopy.
T.B. Chau Vu, I. Kalkman, W.L. Meerts, C. Brand, Y.N. Svartsov, S. Wiedemann, R. Weinkauf, M. Schmitt, Phys. Chem. Chem. Phys. 11 (2009) 2433-2440. |
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64 |
Excited States of Thiophene: Ring Opening as Deactivation Mechanism.
S. Salzmann, M. Kleinschmidt, R. Weinkauf, C.M. Marian - Phys. Chem. Chem. Phys. 10 (2008) 380. |
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63 |
Ultrafast Dynamics in Thiophene Investigated by Femtosecond Pump Probe Photoelectron Spectroscopy and Theory.
R. Weinkauf, L. Lehr, E.W. Schlag, R. Weinkauf, S. Salzmann, C.M. Marian - Phys. Chem. Chem. Phys. 10 (2008) 393. |
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62 |
Structural and Vibrational Analysis of n-Alkylbenzenes: Photoelectron Spectroscopy and ab initio Calculations.
F. Lehrer, L. Lehr, R. Weinkauf, E.W. Schlag, P. Hobza - J. Phys. Chem.
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61 |
Ultrafast Dynamics in Thiophene: S1 Decay Caused by Ultrafast Intersystem Crossing?
L. Lehr, E.W. Schlag, R. Weinkauf - J. Phys. Chem.
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60 |
Ultrafast Dynamics in Thiophene: S1 Decay Caused by Ultrafast Intersystem Crossing?
L. Lehr, E.W. Schlag, R. Weinkauf - J. Phys. Chem. in preparation.
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59 |
Excited state dynamics of protonated and isolated adenine.
D. Nolting, Th. Schultz, I.V. Hertel, R. Weinkauf - submitted to Chem. Phys. Chem.
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58 |
Double Resonance Spectroscopy of Different Conformers of the Neurotransmitter Amphetamine and its Clusters with Water.
R. Brause, H. Fricke, M. Gerhards, R. Weinkauf, K. Kleinermanns - J. Phys. Chem. 327 (2006) 43
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57 |
Excited state dynamics and fragmentation channels of the protonated dipeptide H2N-Leu-Trp-COOH.
.V. Hertel, R. Weinkauf - Phys. Chem. Chem. Phys. 8 (2006) 5247 |
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56 |
Dissociation Kinetics of Peptide Ions.
E.W. Schlag, H.L. Selzle, P. Schanen, R. Weinkauf, R.D. Levine - J. Phys. Chem. A 110 (2006) 8497 |
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55 |
Molecule-Based Photonically-Switched Half and Full Adder.
R. Weinkauf, R. D. Levine - J. Phys. Chem. A, 110 (2006) 177 |
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54 |
The Electronic Spectrum of Protonated Adenine: Theory and Experiment.
C. Marian, D. Nolting, R. Weinkauf - Phy Chem. Chem. Phys. 7 (2005) 3306 |
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53 |
Fs Dynamics after Local Photoionization: 2-Phenylethyl-N,N-dimethylamine as a Model System for Non-Resonant Downhill Charge Transfer in Peptides.
L. Lehr, T. Horneff, R. Weinkauf, E.W. Schlag - J. Phys. Chem. A 109 (2005) 8074 |
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52 |
Control of Local Ionization and Charge Transfer in the Bifunctional Molecule 2-Phenyl-N,N-dimethylamine Using Rydberg Fingerprint Spectroscopy.
W. Cheng, N. Kuthirummal, J.L. Gosselin, T. I. Sølling, R. Weinkauf, P.M. Weber - J. Phys. Chem. A 109 (2005) 1920 |
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51 |
Protonation Effect on the Electronic Spectrum of Tryptophan in the Gas Phase. D. Nolting, Ch. Marian, R. Weinkauf - Phys. Chem. Chem. Phys. 6 (2004) 2633 |
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50 |
The Dipeptide Cyclic(Glycyltryptophanyl) in the Gas Phase: A concerted Action of Density functional Calculations, S0-S1- Two-photon Ionization, Spectral UV/UV Hole Burning and Laser Photoelectron Spectroscopy. S. Wiedemann, A. Metsala, D. Nolting, R. Weinkauf - Phys. Chem. Chem. Phys. 6 (2004) 641 |
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49 |
Local Ionization in 2-Phenylethyl-N,N-dimethylamine: Dissociation Directly After Ionization. R. Weinkauf, L. Lehr, A. Metsala - J. Phys. Chem. A 107 (2003) 2787 |
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48 |
Molecular Physics of Building Blocks of Life under Isolated or Defined Conditions. R. Weinkauf, J-P. Schermann, M.S. de Vries, K. Kleinermanns - Eur. Phys. J. D 20 (2002) 309 |
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47 |
Molecular Logic Machines by Optical Spectroscopy and Charge Migration Along a Molecular Wire Realized as a Peptide. F. Remacle, R. Weinkauf, D. Steinitz, K.L. Kompa, R.D. Levine - J. Phys. Chem. 281 (2002) 363 |
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46 |
Microsolvation of Small Anions by Aromatic Molecules: An Exploratory Study. K. Le Barbu, J. Schiedt, R. Weinkauf, E.W. Schlag, J.M. Nilles, S.-J. Xu, O.C. Thomas, K.H. Bowen - J. Chem Phys. 116 (2002) 9663 |
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45 |
Comment on "Iodine
Effect on the Relaxation Pathway of Photoexcited Iodide-(Water)n
Anion Clusters.
A.V. Davis, M.T. Zanni, R.Weinkauf, D. Neumark - Chem. Phys. Lett. 353 (2002) 455. |
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44 |
Separation
of Neutral Versus Cation Dissociation Processes in an Ultracompact
double Time-of-Flight Spectrometer: First Results on CH3I.
L. Lehr, R. Weinkauf, E.W. Schlag - Int. J. Mass Spectrom. 206 (2001) 191. |
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43 |
Microsolvation
of Similar-sized Aromatic Molecules: Photoelectron Spectroscopy of
Bithiophene-, Azulene, and Naphthalene-Water Anion Clusters.
J. Schiedt, W.J. Knott, K. LeBarbu, R. Weinkauf, E.W. Schlag - J.Chem. Phys. 113 (2000) 9470 |
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42 |
Investigation of Charge Localization and Charge
Delocalization in Model Molecules by Multiphoton Ionization
Photoelectron Spectroscopy and DFT Calculations
R. Weinkauf, F. Lehrer, E.W. Schlag, A. Metsala - Faraday Discuss, 115 (2000) |
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41 |
Electronic Control of Site Selective Reactivity: A
Model Combining Charge Migration and Dissociation F. Remacle, R.D. Levine, E.W. Schlag, R. Weinkauf - J. Phys. Chem. A 103 (1999) 10149 |
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40 |
Efficient and robust anion source, based on a
microchannel plate electron source J. Schiedt and R. Weinkauf - Rev. Sci. Instr. 70 (1999), 2277 |
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39 |
Electron Solvation Dynamics in Finite Systems: A
Femtosecond Study of Iodide-(Water)nAnion Clusters
L. Lehr, M. T. Zanni, B. J. Greenblatt, R. Weinkauf, D. M. Neumark - Science 284 (1999), 635 |
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38 |
Size dependence of Triplet and Singlet States of
alpha-Oligothiophenes S. Rentsch, J. P. Yang, W. Paa, E. Birkner, J. Schiedt, R. Weinkauf - Chem. Phys. Phys. Chem. 1 (1999), 1707 |
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37 |
Resonant Photodetachment via Shape and Feshbach
Resonances: P-Benzoquinone J. Schiedt, R. Weinkauf - J. Chem. Phys. 110 (1999), 304 |
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36 |
Anion Spectroscopy of Uracil-, Thymine- and the
Amino-Oxo and Anino-Hydroxy Tautomers of Cytosine and their Water
Clusters J. Schiedt, R. Weinkauf, D. M. Neumark - E.W. Schlag, Chem. Phys. 239 (1998), 511 |
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35 |
Dynamics of Charge-Transfer-to-Solvent Precursor
States in I-(D2O)n Clusters
M. T. Zanni, L. Lehr, B. J. Greenblatt, R. Weinkauf, D. M. Neumark - in Ultrafast Phenomena, Springer Series in Chem. Phys. (Springer, Berlin, 1998) in press |
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34 |
Charge Transfer and Charge Localization in Extended
Radical Cations: Investigation of Model Molecules for Peptides
R. Weinkauf, F. Lehrer - Conf. Ser. 121, Ed.: J. E. Parks, N. Omento, Institute of Physics, Bristol (1998), 8 pages, in press |
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33 |
Spectroscopy of the Carbendazim in the UV Region by
Resonant Multiphoton Ionization B. Bescós, J. M. Orea, C. Montero, A. González Ureña, R. Weinkauf, U. Boesl, E.W. Schlag - Chem. Phys. Lett. 287 (1998), 371 |
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32 |
Dynamical Principles in Biological Processes
E.W. Schlag, S. H. Lin, R. Weinkauf, P. M. Rentzepis - Proc. Natl. Acad. Sci. USA 95 (1998), 1358 |
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31 |
Nonstationary
Electronic States and Site-Selective Reactivity R. Weinkauf, E.W. Schlag, T.J. Martinez, R. D. Levine - J. Phys. Chem. 101 (1997), 7702 |
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30 |
Energetics
of Photoinduced Electron Transfer in the IndoleO2
Cluster in Gas Phase: Possible Consequences for Photoexcited
Tryptophan in Solution R. Weinkauf, J. Schiedt - Photochem. Photobiol. 66 (1997), 569 |
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29 |
Photodetachment
Photoelectron Spectroscopy of Perylene and CS2: Two
Extreme Cases
J. Schiedt, R. Weinkauf - Chem. Phys. Lett. 274 (1997), 18 |
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28 |
Efficient Cationization by Cs+ Adduct Ion
Formation in a Supersonic Beam P. Schanen, D. Yang, R. Weinkauf, E.W. Schlag - Int. J. Mass Spectrom. Ion Processes 167/168 (1997), 447-470 |
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27 |
Peptides and Biological Relevant Molecules in the Gas
Phase R. Weinkauf - International Symposium on Molecular Beams Conf. Ser. XVII (1997), 67-70 |
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26 |
Verfahren und Vorrichtung zum Quasiionisieren von
Probenmolekülen in der Gasphase R. Weinkauf, P. Schanen,and E.W. Schlag - Deutsches Patent DE 197 05 762 A 1, angemeldet am 15. 02. 1997 |
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25 |
Time
Multiplexing: A New Single Shot Femtosecond Pump-Probe Technique
R.Weinkauf, L. Lehr, D. Georgiev, E.W. Schlag - Applied Physics B 64 (1997), 515 |
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24 |
Photodetachment
of Mass Selected Anions: Anthracene and Anthracene-Water
J. Schiedt, R. Weinkauf - Chem. Phys. Lett. 266 (1997), 201 |
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23 |
Highly
Efficient Charge Transfer in Peptide Cations in the Gas Phase -
Threshold Effects and Mechanism R. Weinkauf, P. Schanen, A. Metsala, E.W. Schlag, M. Bürgle, H. Kessler - J. Phys. Chem. 100 (1996), 18567 |
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22 |
Elementary
Processes in Peptides: Electron Mobility and Dissociation in
Peptide Cations in the Gas Phase R. Weinkauf, P. Schanen, D. Yang, S. Soukara, E.W. Schlag - J. Phys. Chem. 99 (1995), 11255 |
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21 |
Spin-Orbit
Coupling in the O2- Anion J. Schiedt, R. Weinkauf - Z. Naturforsch. 50a (1995), 1041 |
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20 |
Laser
Spectroscopy of Molecular Ions: The A-X-Transition of the
Acetylen Radical Cation C. Cha, R. Weinkauf, U. Boesl - J. Chem. Phys. 103 (1995), 5224 |
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19 |
Femtosecond versus Nanosecond Multiphoton Ionization
and Dissociation of Large Molecules R. Weinkauf, P. Aicher, G. Wesley, J. Grotemeyer, E.W. Schlag - J. Phys. Chem. 98 (1994), 8381 |
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18 |
Laser
Spectroscopy of Molecular Ions - The A-X Transition in the OCS
Radical Cation R. Weinkauf, U. Boesl - J. Chem. Phys. 101 (1994), 8482 |
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17 |
Laser Ion
Sources for Time-of-Flight Mass Spectrometry U. Boesl, R. Weinkauf, C. Weickhardt, E.W. Schlag - Int. Jour. Mass Spectrom. Ion Proc. 131 (1994), 87 |
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16 |
Rydberg Spectroscopy of OCS: New Assignments in the 70
000 - 74 000 cm-1 Energy Region R. Weinkauf, U. Boesl - J.Chem. Phys. 98 (1993), 4459 |
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15 |
Reflectron Time-of-Flight Mass Spectrometry and Laser
Excitation for the Analysis of Neutrals, Ionized Molecules and
Secondary Fragments U. Boesl, R. Weinkauf, E.W. Schlag - Int. Jour. Mass Spectrom. Ion Proc. 112 (1992), 121 |
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14 |
Spectroscopy of Molecular Ions Prepared by Resonant
Multiphoton Ionization: The OCS+ Ion R. Weinkauf, U. Boesl - in "Resonance Ionization Spectroscopy" Conf Ser. 114, ed.: J.E. Parks, N. Omento, Institute of Physics, Bristol (1991), 181 |
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13 |
Laser Tandem Mass Spectrometer with Two Lasers in a
Reflectron Time-of-Flight Analyzer C. Weickhardt, R. Weinkauf, K. Walter, U. Boesl - Berichte der Bunsengesellschaft (1990), in "Resonance Ionization Spectroscopy" Conf Ser. 114, ed.: J.E. Parks, N. Omento, Institute of Physics, Bristol (1991), 169 |
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12 |
U.
Boesl, R. Weinkauf, K. Walter, and E.W. Schlag - MS-MS Time-of-Flight Mass Spectrometer United States Patent 6,032,722, date of patent: July 16 (1991) |
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11 |
Multiphoton Dissociation of Organic Molecules: Step by
Step Investigations with Laser Tandem Mass Spectroscopy
U. Boesl, R. Weinkauf, K. Walter, C. Weickhardt, E.W. Schlag - Berichte der Bunsengesellschaft 94 (1990), 1357 |
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10 |
Tandem Time of Flight Techniques and Multiphoton Mass
Spectrometry: The Ladder Switching in Benzene U. Boesl, R. Weinkauf, K. Walter, C. Weickhardt, E.W. Schlag - J. Phys. Chem. 94 (1990) 8569 |
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9 |
Tandem Massenspektroskopie im
Flugzeit-Massenspektrometer Deutsches Patent, Patent Nr.: DE 3920566 C2, eingereicht am 23.06.89, erteilt am 01.04.1993 |
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8 |
Laser Tandem Mass Spectrometry in a Time of Flight
Instrument R. Weinkauf, K. Walter, C. Weickhardt, U. Boesl, E.W. Schlag - Z. Naturforsch. 44a (1989) 121 |
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7 |
Resonance-Enhanced Multiphoton Dissociation
Spectroscopy of Molecular Ions: Technique and Application
to CH3I+/CD3I+
U. Boesl, R. Weinkauf, K. Walter; Advances in Laser Science IV, ed.: J.L. Gole, D.F. Heller, M. Lapp, W.C. Stwalley - American Institute of Physics, New York (1989), 488-493 |
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6 |
Spectroscopy of the Benzene Cation: Resonance-Enhanced
Multiphoton Dissociation Spectra of the B(E2g)-X(E1g)
Transition K. Walter, R. Weinkauf, U. Boesl and E.W. Schlag - Chem. Phys. Letters 155 (1989), 8 |
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5 |
Molecular Ion Spectroscopy: Mass Selected,
Resonant Two-Photon Dissociation Spectra of CH3I+
and CD3I+ K. Walter, R. Weinkauf, U. Boesl and E.W. Schlag - J. Chem. Phys. 89 (1988), 1914 |
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4 |
Mass Selected Molecular Ion Spectra:
(1+1)-Photodissociation Spectroscopy of CH3I+
and CD3I+ R. Weinkauf, K. Walter, U. Boesl, E.W. Schlag - Chem. Phys. Letters 141 (1987), 267 |
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3 |
High-Resolution Laser Mass Spectrometry
H.J. Neusser, U. Boesl, R. Weinkauf, E.W. Schlag - Int. J. Mass Spectrom. Ion. Proc. 60 (1984), 147 |
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2 |
Multiphoton Mass Spectrometry: Metastables
H. Kühlewind, U. Boesl, R. Weinkauf, H.J. Neusser, E.W. Schlag - Laser Chem. 3 (1983), 3 |
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1 |
Multiphoton Mass Spectrometry of Metastables
Direct Observation of Decay in a High-Resolution Time-of-Flight
Instrument U. Boesl, H.J. Neusser, R. Weinkauf and E.W. Schlag - J. Phys. Chem. 86 (1982), 4857 |