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Molecular & Ionic Clusters
Gordon Research Conference

Dates

January 29 - February 3, 2012

Location

Four Points Sheraton / Holiday Inn Express
Ventura, CA

Organizers

Chairs:
Anne B. McCoy & Frank Stienkemeier

Vice Chairs:
Andrey Vilesov & Anne Zehnacker-Rentien

Meeting Description

The Gordon Research Conference on “Molecular and Ionic Clusters” focuses on clusters, which are the initial molecular species found in gases when condensation begins to occur. Condensation can take place solely from molecules interacting with each other, mostly at low temperatures, or when molecules condense around charged particles (electrons, protons, metal cations, molecular ions), producing ion molecule clusters. These clusters provide models for solvation, allow a pristine look at geometric as well as electronic structures of molecular complexes or matter in general, their interaction with radiation, their reactivity, their thermodynamic properties and, in particular, the related dynamics. This conference focuses on new ways to make clusters composed of different kinds of molecules, new experimental techniques to investigate the properties of the clusters and new theoretical methods with which to calculate the structures, dynamical motions and energetics of the clusters. Some of the main experimental methods employed include molecular beams, mass spectrometry, laser spectroscopy (from infrared to XUV; in the frequency as well as the time domain) and photoelectron spectroscopy. Techniques include laser absorption spectroscopy, laser induced fluorescence, resonance enhanced photoionization, mass-selected photodissociation, photofragment imaging, ZEKE photoelectron spectroscopy, etc. From the theoretical side, this conference highlights work on potential surfaces and measurable properties of the clusters. The close ties between experiment, theory and computation have been a hallmark of the Gordon Research Conference on Molecular and Ionic Clusters. In the 2012 meeting, we plan to have sessions that will focus on topics including:

  • The use of cluster studies to probe fundamental phenomena
  • Finite size effects on structure and thermodynamics
  • Intermolecular forces and cooperative effects
  • Molecular clusters as models for solvation
  • Studies of clusters at XUV light sources

Contributors

Meeting Program

SUNDAY
4:00 pm - 8:00 pmArrival and Check-in (Office Closed 6:00 pm - 7:45 pm)
6:00 pmDinner
7:30 pm - 7:40 pmWelcome / Introductory Comments by GRC Site Staff
Welcome by Co-Chairs Anne McCoy and Frank Stienkemeier
7:40 pm - 9:30 pmReactions and Radicals in Clusters
7:40 pm - 7:55 pmDiscussion Leader: David Nesbitt (University of Colorado / JILA, USA)
"Introduction"
7:55 pm - 8:30 pmJoseph Francisco (Purdue University, USA)
"Atmospheric radical-molecule reactions at water surfaces: New perspectives from a study of cluster reaction models"
8:30 pm - 8:40 pmDiscussion
8:40 pm - 9:15 pmGary Douberly (University of Georgia, USA)
"Hydrocarbon radical reactions in helium nanodroplets"
9:15 pm - 9:25 pmDiscussion
9:30 pmWelcome Reception
MONDAY
7:30 am - 8:30 amBreakfast
8:30 amGroup Photo
9:00 am - 12:30 pmProbing Fundamental Processes through Cluster Studies
9:00 am - 9:15 amDiscussion Leader: Mark Johnson (Yale, USA)
"Introduction"
9:15 am - 9:50 amJim Lin (Academia Sinica, Taiwan)
"Photochemistry of the ClO dimer in the ozone hole formation"
9:50 am - 10:00 amDiscussion
10:00 am - 10:10 amHot topic talk: Amanda Case (University of Colorado/JILA, USA)
"CN rotation following photoexcitation of ICN-"
10:10 am - 10:15 amDiscussion
10:15 amCoffee Break
10:45 am - 11:20 amZlatko Bacic (New York University, USA)
"Quantum dynamics of small clusters of hydrogen molecules in nanoscale confinement: Energetics, maximum occupancy, and temperature-dependent spatial distributions"
11:20 am - 11:30 amDiscussion
11:30 am - 11:40 amHot topic talk: Christian van der Linde (Christian-Albrechts-Universität Kiel, Germany)
"Reactivity of hydrated metal ions M+(H2O)n, M=Mg, V to Zn, towards O2 and CO2: Mg exhibits chemistry of the hydrated electron while transition metals show different reactivity"
11:40 am - 11:45 amDiscussion
11:45 am - 12:15 pmMichael Heaven (Emory University, USA)
"Spectroscopic studies related to the search for the dipole moment of the electron"
12:15 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session I (preview)
6:00 pmDinner
7:30 pm - 9:30 pmLow Temperature Interactions and Cooperative Effects
7:30 pm - 7:45 pmDiscussion Leader: Takamasa Momose (University of British Columbia, Canada)
"Introduction"
7:45 pm - 8:20 pmNadine Halberstadt (Université Paul Sabatier, France)
"Dynamics simulation of doped helium droplets"
8:20 pm - 8:30 pmDiscussion
8:30 pm - 8:40 pmHot topic talk: Richard A. Loomis (Washington University, USA)
"Experimental interrogation of the competing relaxation pathways of Ar•••I2(B,v')"
8:40 pm - 8:45 pmDiscussion
8:45 pm - 9:20 pmJeremy Hutson (University of Durham, UK)
"Towards quantum control in ultracold chemistry"
9:20 pm - 9:30 pmDiscussion
9:30 pmPoster Session I
TUESDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmWater-containing Clusters
9:00 am - 9:15 amDiscussion Leader: Kenneth Jordan (University of Pittsburgh, USA)
"Introduction"
9:15 am - 9:50 amHanna Reisler (University of Southern California, USA)
"Imaging bond breaking pathways in water containing complexes"
9:50 am - 10:00 amDiscussion
10:00 am - 10:10 amHot topic talk: Marie-Pierre Gaigeot (Universite Evry val d'Essonne, France)
"Colliding ions with molecular clusters: modeling cluster ion formation"
10:10 am - 10:15 amDiscussion
10:15 amCoffee Break
10:45 am - 11:20 amTakashi Nagata (University of Tokyo, Japan)
"Embryonic complex anions of water cluster with various molecules"
11:20 am - 11:30 amDiscussion
11:30 am - 11:40 amHot topic talk: Bruce Yoder (University of British Columbia, Canada)
"Sizer for neutral weakly bound ultrafine aerosol particles based on sodium doping and mass spectrometric detection"
11:40 am - 11:45 amDiscussion
11:45 am - 12:15 pmSotiris Xantheas (PNNL, USA)
"Universal scaling of potential energy surfaces describing intermolecular interactions: New generalized forms of some popular interaction potentials and applications to the X-(H2O), X=F, Cl, Br, I and M+(H2O), M=Li, Na, K, Rb, Cs systems"
12:15 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session II (preview)
6:00 pmDinner
7:30 pm - 9:30 pmFinite Size Effects on Structure and Thermodynamics
7:30 pm - 7:45 pmDiscussion Leader: Bruce Garrett (PNNL, USA)
"Introduction"
7:45 pm - 8:20 pmCaroline Chick-Jarrold (Indiana University, USA)
"Physical and chemical properties of group 5 and 6 transition metal cluster anions in low oxidation states"
8:20 pm - 8:30 pmDiscussion
8:30 pm - 8:40 pmHot topic talk: Jennifer Meyer (University of Kaiserslautern, Germany)
"Spin and orbital magnetic moments of isolated transition metal clusters"
8:40 pm - 8:45 pmDiscussion
8:45 pm - 9:20 pmBernd von Issendorff (University of Freiburg, Germany)
"Structure and thermodynamics of pure and doped water clusters"
9:20 pm - 9:30 pmDiscussion
9:30 pmPoster Session II
WEDNESDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmQuantum Clusters
9:00 am - 9:15 amDiscussion Leader: Jan-Peter Toennies (MPI Göttingen, Germany)
"Introduction"
9:15 am - 9:50 amMartina Havenith (Ruhr-Universität Bochum, Germany)
"Rock and roll at 0.37 K - High resolution IR spectroscopy of ultracold molecular cluster"
9:50 am - 10:00 amDiscussion
10:00 am - 10:10 amHot topic talk: Katrin Siefermann (Lawrence Berkeley National Lab, USA)
"Relaxation dynamics of electronically excited He droplets studied by femtosecond time-resolved photoelectron and ion imaging"
10:10 am - 10:15 amDiscussion
10:15 amCoffee Break
10:45 am - 11:20 amPierre-Nicholas Roy (Waterloo, Canada)
"Probing non-classical rotations in doped helium an hydrogen clusters"
11:20 am - 11:30 amDiscussion
11:30 am - 11:40 amHot topic talk: Vladimir Mandelshtam (University of California, Irvine, USA)
"Size-induced structural transitions in large quantum Lennard-Jones clusters by the variational Gaussian wavepacket method"
11:40 am - 11:45 amDiscussion
11:45 am - 12:15 pmMassimo Boninsegni (University of Alberta, Canada)
"The role of exchange in the structure of quantum Lennard-Jones clusters"
12:15 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session III (preview)
6:00 pmDinner
7:00 pm - 7:30 pmBusiness Meeting
Nominations for the next Vice Chairs; Fill out Conference Evaluation Forms; Discuss future Site & Scheduling preferences; Election of the next Vice Chair
7:30 pm - 9:30 pmClusters at New XUV Light Sources
7:30 pm - 7:45 pmDiscussion Leader: Dan Neumark (University of California, Berkeley, USA)
"Introduction"
7:45 pm - 8:20 pmThomas Möller (Technical University Berlin, Germany)
"Imaging ultrafast x-ray induced processes in clusters"
8:20 pm - 8:30 pmDiscussion
8:30 pm - 8:40 pmTobias Lau (Helmholtz-Zentrum Berlin, Germany)
"X-ray magnetic circular dichroism spectroscopy of size-selected cluster ions: Electron localization, spin coupling, orbital moment quenching"
8:40 pm - 8:45 pmDiscussion
8:45 pm - 9:20 pmJosef Tiggesbäumker (Universität Rostock, Germany)
"Probing the properties of clusters and particles with intense VUV light pulses"
9:20 pm - 9:30 pmDiscussion
9:30 pmPoster Session III
THURSDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmMolecular Clusters as Models for Solvation
9:00 am - 9:15 amDiscussion Leader: Jan Verlet (University of Durham, UK)
"Introduction"
9:15 am - 9:50 amMathias Weber (University of Colorado, USA)
"Infrared studies of solvated anions"
9:50 am - 10:00 amDiscussion
10:00 am - 10:10 amHot topic talk: Nadja Heine (Fritz-Haber-Institut der Max-Planck-Gesellschaft, Germany)
"Isomer-selective IR/IR double resonance spectroscopy: Isolating the spectral signatures of H+(H2O)6+ isomers"
10:10 am - 10:15 amDiscussion
10:15 amCoffee Break
10:45 am - 11:20 amR. Benny Gerber (Hebrew University, Israel)
"Dynamics and mechanisms of atmospherically-relevant reactions on ice and water clusters"
11:20 am - 11:30 amDiscussion
11:30 am - 11:40 amHot topic talk: Einar Uggerud (University of Oslo, Norway)
"Proton mobility in water clusters"
11:40 am - 11:45 amDiscussion
11:45 am - 12:15 pmOleg Boyarkin (ETH, Switzerland)
"Spectroscopy of cold protonated peptide-water clusters beyond the free OH-stretch vibration"
12:15 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session IV (preview)
6:00 pmDinner
7:30 pm - 9:30 pmIonic Clusters
7:30 pm - 7:45 pmDiscussion Leader: Hellmut Haberland (University of Freiburg, Germany)
"Introduction"
7:45 pm - 8:20 pmEvan Bieske (University of Melbourne, Australia)
"Molecular hydrogen attached to metal cations"
8:20 pm - 8:30 pmDiscussion
8:30 pm - 8:40 pmHot topic talk: Kiichirou Koyasu (Tohoku University, Japan)
"Temperature dependence of oxidation reactions of isomer-separated carbon cluster cations"
8:40 pm - 8:45 pmDiscussion
8:45 pm - 9:20 pmMasaaki Fujii (Tokyo Institute of Technology, Japan)
"Water migration dynamics in ionic clusters"
9:20 pm - 9:30 pmDiscussion
9:30 pmPoster Session IV
FRIDAY
7:30 am - 8:30 amBreakfast
9:00 amDeparture
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