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2019

Advances in hydrogen molecular ions: H3+, H5+ and beyond, The Royal Society, London, UK, January 21-22

AnalytiX-2019 (The 7th Annual Conference of Analytics), Singapore, April 12-14

Per Jensen: "Making progress in understanding the rotation-vibration spectra of extremely flexible molecules," invited lecture.

Slides (pdf)

2018

ASMS 2018 - San Diego

73rd International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois, USA, June 18-22

BILBAO2018: The 25th International Conference on High Resolution Molecular Spectroscopy, Bilbao, Spain, September 3-7

12th Annual Meeting of the Japan Society for Molecular Science, Fukuoka International Congress Center, Japan, September 10-13

2017

ASMS 2017 - Indianapolis

  • ASMS2017 MP245 AHaack.pdfTheoretical studies on reactions of gas phase ions with water covered α-quartz surfaces
  • ASMS2017 ThP188 YB.pdfA FT 3D Ion Trap with in-trap electron ionization and pulsed gas inlet: transient pressure profile and space charge induced effects
  • ASMS2017 ThP189 CP BtreeQIT.pdfIon dynamics simulation: Space charge effects in a fourier transform 3D-ion trap (FT-ion trap)
  • ASMS2017 THP190 MT.pdfSystematic studies of the impact of chemical modifiers on the ion population observed with nESI MS
  • ASMS2017 ThP191 WW BtreeQuad.pdfFast space charge simulations: Simulation of ion – ion and background gas interaction in a linear quadrupole
  • ASMS2017 ThP192 FS DMS.pdfEffects of chemical dynamics and clustering reactions of chemical modifiers with analyte ions in differential mobility spectrometry (DMS)
  • ASMS2017 TP422 HK.pdfH2 plasma for the generation of protonation reagents with a standard APPI power supply
  • ASMS2017 TP424 KK.pdfEvaluation of a kinetically controlled chemical ionization setup
  • ASMS2017 TP425 NH.pdfImprovement of μpCI for proton transfer reactions: a chambered ion source design for suppression of water-cluster

Symmetry 2017 - The First International Conference on Symmetry, Barcelona, Spain, October 16–18

4th International Conference on Physical and Theoretical Chemistry, Dublin, Ireland, September 18-19

Per Jensen: “Making headway in understanding the rotation-vibration spectrum of protonated methane CH5+ - an extremely flexible molecule,” invited "keynote talk".

Slides (pdf)

Twenty-fifth Colloquium on High-Resolution Molecular Spectroscopy, Helsinki, Finland, August 20-25

Per Jensen: “Theoretical rovibronic energies of pathological molecules: Extreme flexibility and Born-Oppenheimer breakdown,” invited plenary lecture.

Slides (pdf)

72nd International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois, USA, June 19-23

TROVE Developers' meeting, Center for Free-Electron Laser Science, DESY, Hamburg, Germany, February 21-23

Per Jensen: “Towards higher rotational excitation: TROVE goes semi-classical,” invited lecture.

Slides (pdf)

Ahmad Adam: “Theoretical Spectroscopy of the Methyl Radical.” 

Slides (pdf)

2016

ASMS 2016 - San Antonio

2nd Traditional Mini-Symposium on Theoretical and Experimental Spectroscopy, Physical and Theoretical Chemistry, University of Wuppertal, December 12.

Per Jensen (Bergische Universität Wuppertal): "SbH2 and BiH2 revisited: An ab initio study of the Renner Effect, Spin-Orbit Coupling, Local Mode Vibrations and Rovibronic Energy Level Clustering in SbH2."
Slides (pdf)   Video (mp4)

Ahmad Adam (Bergische Universität Wuppertal): "Theoretical Infrared Intensities of the Methyl Radical."
Slides (pdf)

Hanno Schmiedt (Universität zu Köln): "Schur-Weyl duality in molecular physics: A new glance at nuclear spin states in molecules."
Slides (pdf)   Video (mp4) 

Stefan Brackertz (Universität zu Köln): "From Lines to States without a Model."
Slides (pdf)   Video (mp4)

Pascal Stahl (Universität Kassel): "The Fast Scanning mm-Wave Spectrometer."  
Slides (pdf)    Video (mp4)

Daniel Witsch (Universität Kassel): "Ro-Vibrational Spectroscopy of Si2C."
Slides (pdf)    

PRAHA2016: The 24th International Conference on High Resolution Molecular Spectroscopy, Prague, Czech Republic, August 30-September 3

71st International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois, USA, June 20-24

99th Canadian Chemistry Conference and Exhibition, Halifax, Nova Scotia, Canada, June 5-9

2015

22nd International Symposium on Plasma Chemistry (ISPC) 2015, Antwerpen, Belgien

ASMS annual Meeting 2015 - St. Louis

  • MP047.pdfSpectroscopy of a windowless, electron-beam-pumped excimer lamp (EBEL) in the VUV spectral region of 50 – 200 nm
  • MP053.pdfDevelopment of a dual-mode laminar flow ion source for APPI- and APLI-GC-MS
  • MP054.pdfConcept study for a sensitive and versatile chemical ionization time of flight instrument
  • MP060.pdfA helium metastable seeded secondary plasma in the low mbar pressure regime – characterization and evaluation for mass spectrometric applications
  • MP061.pdfMicro-plasma based pulsed direct charge transfer stage coupled to a FT-IT mass spectrometer
  • MP063.pdfProton Transfer Mass Spectrometry (PT-MS) with H3+ as reagent ions
  • MP069.pdfnESI and cAPCI applications of a controlled ion activation stage (“ion tunnel”)
  • TP056.pdfIntegrated Ion Dynamics Simulations in OpenFOAM: Flow, Transport, Chemical Reactions, and Space-Charge
  • WP423.pdfOn the ionization mechanism in atmospheric pressure negative ion mass spectrometry – the role of ozone and CO2 –

AMOC 2015, Anharmonicity in medium-sized molecules and clusters", Madrid, Spain, April 26-30

Bojana Ostojic, Per Jensen, Peter Schwerdtfeger, P. R. Bunker: "Ab initio calculations for the group-2 hypermetallic oxides," invited lecture given by Per Jensen.

Slides (pdf)

Ahmad Adam, Per Jensen, Sergei N. Yurchenko, Andrei Yachmenev: "Theoretical Study of the Magnetic Properties of the Methyl Radical"

 Poster (pdf)

Hyperspectral Science and Technology Workshop 2015 , University of Lethbridge, Alberta, Canada, November 4-5

Per Jensen:  "Simulation of rovibronic spectra for Renner-interacting electronic states," invited lecture.

Slides (pdf)

HRMS 2015: 24th Colloquium on High Resolution Molecular Spectroscopy, Dijon, France, August 24-28

70th International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois, USA, June 22-26

2014

ASMS annual Meeting 2014 - Baltimore

  • MP299 T.J.Kauppila.pdfIonization of gaseous compounds in direct and dopant-assisted atmospheric pressure photoionization
  • MP315 Th.Benter.pdfAtmospheric pressure laser ionization with a novel highly sensitive atmospheric pressure ionization interface for gas-chromatography-mass spectrometry
  • MP524 V.Derpmann.pdfApplication of capillary Atmospheric Pressure Electron Capture Ionization (cAPECI) for the ultra-sensitive detection of explosives, drugs and environmental toxins
  • MP684 H.Kersten.pdfProgress in the development of a GC-APPI source with femto-gram sensitivity

ASMS annual Meeting 2014 - Baltimore (Thursday Session)

  • TP731 Klopotowski 01.pdfValidation of Computational Fluid Dynamic Simulations with Background Oriented Schlieren Technique
  • TP732 D.Mueller 01.pdfInvestigation of Gas- and Ion-Dynamics in Heated Glass and Metal Inlet Capillaries: Work in progress ...
  • TP733 S.Klee 01.pdfFundamental ion-molecule reaction studies at elevated ion temperature and analytical application of an ion activation stage (“ion tunnel”)
  • TP734 Y.Brachthaeuser 01.pdfDevelopment of a compact multiple-ionization-stage TOF mass analyzer system for trace component monitoring within chemically challenging process gas matrices
  • TP735 W.Wissdorf 01.pdfIntegrated ion trajectory simulations in OpenFOAM, an open source framework for complex numerical simulations
  • TP736 S.Albrecht 01.pdfAn efficient ion funnel operating at 100 mbar background pressure
  • TP737 Klopotowski2 01.pdfMeasurements of electronically excited noble gas species radiating in the far VUV

BOLOGNA2014: The 23rd International Conference on High Resolution Molecular Spectroscopy, Bologna, Italy, September 2-6

69th International Symposium on Molecular Spectroscopy, CHAMPAIGN-URBANA, ILLINOIS, JUNE 16-20

2013

7th International Conference on Advanced Vibrational Spectroscopy, Kobe, Japan

Per Jensen: "Local modes in vibrational (and rotational) spectroscopy", plenary invited lecture  at ICAVS-7: The 7th International Conference on Advanced Vibrational Spectroscopy, Kobe, Japan, August 25-30, 2013.

Slides (pdf)

2013 CESRA workshop, Prague, Czech Republic

Per Jensen: "Molecular Spectroscopy and ALMA,"  2013 CESRA workshop, Prague, Czech Republic, June 24-29, 2013.

Slides (pdf)

ASMS annual Meeting 2013 - Minneapolis

  • MP274.pdfA Novel Corona Discharge Source with Liquid Point Electrodes
  • MP275.pdfGC-MS Performance of a Novel Capillary Atmospheric Pressure Chemical Ionization (cAPCI) Source
  • MP276.pdfSpark discharge VUV lamps for Atmospheric Pressure Ionization – Mass spectrometric investigations of the plasma chemistry
  • MP277.pdfProgress in characterizing capillary Atmospheric Pressure Electron Capture Ionization (cAPECI)
  • MP278.pdfCharging effects in ion transfer capillaries: An in-depth study
  • MP279.pdfSimblend - an open source visualization toolchain for SIMION
  • MP280.pdfField driven chemical effects in API: Numerical modeling of the ion temperature at atmospheric and intermediate pressure with SIMION-RS
  • MP281.pdfVisualization and optimization of the fluid dynamics in high- flow atmospheric pressure ion sources, using the Background Oriented Schlieren method (BOS)
  • MP284.pdfProgress in the development of capillary Atmospheric Pressure Ionization Methods (cAPI)

68th International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 17-21

2012

C3 Mini-Symposium, Cologne, Germany

Per Jensen: "Is CCC really linear? Early theoretical studies," invited lecture at the "C3 Mini-Symposium", I. Physikalisches Institut, Universität zu Köln, Cologne, Germany, March 1-2, 2012.

Slides (pdf)

22nd UCL Astrophysics Colloquium: Opacities in Cool Stars and Exoplanets, Windsor, UK

Per Jensen: "The predicted infrared spectrum of the hypermetallic molecule CaOCa in its lowest two electronic states X1Σg+and a3Σu+",  "22nd UCL Astrophysics Colloquium: Opacities in Cool Stars and Exoplanets",  Cumberland Lodge, The Great Park, Windsor, UK, July 2-5, 2012.

Slides (pdf)

International Workshop on Spectroscopic Signatures of Molecular Complexes/Ions in our Atmosphere and Beyond, Varanasi, India

Per Jensen: "Torsional splittings and anomalous intensities in HSOH," "plenary keynote lecture" at the 2nd International Workshop on Spectroscopic Signatures of Molecular Complexes/Ions in our Atmosphere and Beyond, Banares Hindu University, Varanasi, India, February 7-10, 2012.

Slides (pdf)

ASMS annual Meeting 2012 - Vancouver

  • MP29-667.pdfCharacterization of API-MS Inlet Capillary Flow: Examination of Transfer Times and Choked Flow Conditions
  • MP29-668.pdfProgress in VUV measurements of a spark discharge lamp used for capillary Atmospheric Pressure Photoionization (cAPPI)
  • MP29-670.pdfNumerical Simulation of Reacting Flows of Ions at Atmospheric Pressure - the Reactant Ion Peak in IMS
  • MP29-671.pdfInvestigation of Ion Transfer Times in a commercial Atmospheric Pressure Ion Source
  • MP29-674.pdfDevelopment of a New Ion Source for Capillary Atmospheric Pressure Electron Capture Ionization (cAPECI)
  • MP29 673.pdfInvestigation of reactant ion transmission efficiency of a tubular APCI-configuration in Laminar Flow Ion Sources (LFIS)
  • MP29 676 low res.pdfDevelopment of a dielectric barrier discharge source for efficient generation of charged water clusters at atmospheric pressure
  • Mp29-672.pdfOn the Ionization Mechanism in Negative Ion Atmospheric Pressure Mass Spectrometry and the Role of Cluster Formation

67th International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 18-22

PRAHA2012: 22nd International Conference on High Resolution Molecular Spectroscopy, Prague, Czech Republic, September 4-8

2011

The Fifth Asian Pacific Conference of Theoretical and Computational Chemistry, Rotorua, New Zealand

Per Jensen: "Theoretical Simulations of the Rovibronic Spectra for Small Molecules," "keynote lecture" at APCTCC 2011: The Fifth Asian Pacific Conference of Theoretical and Computational Chemistry, Rotorua, New Zealand, December 9-13, 2011.

Slides (pdf)

ASMS annual Meeting 2011 - Denver

ASMS annual Meeting 2011 - Denver (Thursday Session)

2010

5th Heron Island Conference on Reactive Intermediates and Unusual Molecules: Synthesis and Mechanism

Per Jensen: "Rotation-vibration energy level cluster formation in three- and four-atomic molecules," invited plenary lecture at the 5th Heron Island Conference on Reactive Intermediates and Unusual Molecules: Synthesis and Mechanism, Heron Island, Great Barrier Reef, Queensland, Australia, July 10-16, 2010 

Slides (pdf)

PACIFICHEM: Anharmonic Vibrations of Molecules & Clusters: Experiment and Theory

Per Jensen: "Torsional splittings and anomalous intensities in HSOH," invited lecture at Symposium 116 "Anharmonic Vibrations of Molecules & Clusters: Experiment and Theory" at PACIFICHEM: 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, U.S.A., December 15-20, 2010. 

Slides (pdf)

ASMS annual Meeting 2010 - Salt Lake City

"International Polar Year" Meeting in Oslo 2010

  • HONO-IPY.pdfMeasurements of HONO during OASIS in Barrow, Alaska

Workshop: "Atmospheric Chemistry: kinetics and spectroscopy" 2010 in Bayreuth

  • Poster TiO2.pdfHeterogeneous Conversion of Nitrogen Oxides on Commercial Photocatalytic Dispersion Paints

International Workshop on Spectroscopic Signatures of Molecular Complexes/Ions in our Atmosphere and Beyond, Udai Pratap Autonomous College, Varanasi, India, February 2-4

Per Jensen:  "Rotation-vibration energy level cluster formation in three- and four-atomic molecules," invited plenary lecture.

Slides (pdf)

POZNAN2010: 21st International Conference on High Resolution Molecular Spectroscopy, Poznan, Poland, September 7-11

2009

AGU 2009 Fall Meeting

Seventh International Conference of Computational Methods in Sciences and Engineering (ICCMSE 2009), Rhodes, Greece, September 29-October 4

Per Jensen:  "Rotation-vibration energy level cluster formation in three- and four-atomic molecules," invited lecture.

Slides (pdf)

64th International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 22-26

2008

Annual meeting of the Danish Chemical Society, Odense, Denmark, June 13th

Per Jensen:  "Energy Cluster States at High Rotational Excitation in XH2 and XH3 Molecules," invited lecture.

Slides (pdf)

63rd International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 16-20

2007

13th Spectroscopic Conference organized by the Ioannes Marcus Marci Spectroscopic Society, Lednice na Moravĕ, Czech Republic, June 18-21

Per Jensen:  "Theoretical Rovibronic Spectroscopy of Small Molecules," invited plenary lecture.

Slides (pdf)

62nd International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 18-22

Twentieth Colloquium on High Resolution Molecular Spectroscopy, Dijon, France, September 3-7

2006

61st International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 19-23

2005

19th Colloquium on High Resolution Molecular Spectroscopy, Salamanca, Spain, September 12-16

Per Jensen:  "Theoretical Calculations of Rotation-Vibration Energies and Intensities for Small Molecules," invited plenary lecture.

Slides (pdf)

60th International Symposium on Molecular Spectroscopy, Columbus, Ohio, U.S.A., June 20-24