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Abstract Book Monday, August 13th 2018 8:00 Opening Session I (Session chair: Xueming Yang) 8:20 – 9:00 Spectroscopy of Metal and Metal Oxide Clusters using Slow Electron Velocity-Map Imaging of Cryogenically Cooled Anions Daniel Neumark 9:00 – 9:40 Photoluminescent Metal-Containing Ions Manfred Kappes 9:40 – 10:00 Dalian Coherent Light Source-Based Infrared Spectroscopy of Neutral Clusters Ling Jiang 10:00 – 10:30 Break Session II (Session chair: Guanghou Wang) 10:30 – 11:10 Two-Dimensional Boron Sheets Kehui Wu 11:10 – 11:30 Manipulating the Magnetic Moment of Graphene-Supported Palladium Clusters by Adsorption of Hydrogen María J. López 11:30 – 11:50 Probing the Structures of Gas-Phase Boron Clusters Using Size-Selective IR Spectroscopy Andre Fielicke 11:50 – 12:10 Ab Initio Global Search of Pure and Metal-Doped Boron Clusters Jijun Zhao 12:10 – 13:30 Lunch Session III (Session chair: Julio Alonso) 13:30 – 14:10 When Not only Each Atom Counts! Ulrich Heiz 14:10 – 14:50 From Single-Atom Catalysis (SAC) to Single-Cluster Catalysis (SCC) Jun Li 14:50 – 15:10 Activation and Reactions of Small Molecules (O2, NO, CO, C2H4, etc.) on IB Group (Cu, Ag, and Au) Metal Clusters Xiao-Peng Xing 15:10 – 15:30 Successive Nitridation of Tantalum Cluster Cations by Ammonia Molecules: The Origin of Bulk- Nitride Composition of Group 5 Metals Masashi Arakawa 15:30 – 16:00 Break Session IV (Session chair: Chuan-Gang Ning) 16:00 – 16:40 Infrared and Velocity-Map Imaging Studies of Decorated Metal Clusters and Metal-Ligand Complexes Stuard Mackenzie 16:40 – 17:20 Infrared Spectroscopy of Donor-Acceptor Bonding Carbonyl Complexes Mingfei Zhou 17:20 – 17:40 The Effect of Radiative Cooling on the Size-Dependent Stability of Small Boron Clusters Piero Ferrari 17:40 – 18:00 Bilayer Fullerenes Studied by Ion Mobility Mass Spectrometry Motoyoshi Nakano Monday August 13th INV1 Spectroscopy of metal and metal oxide clusters using slow electron velocity-map imaging of cryogenically cooled anions Daniel Neumark1 1 University of California at Berkeley, USA [email protected] Slow electron velocity-map imaging of cryogenically cooled anions (cryo-SEVI) is a high resolution variant of negative ion photoelectron spectroscopy. It yields well-resolved spectra of species that were previously found to be spectroscopically intractable using lower resolution techniques. Results will be presented for transition metal oxide clusters, aluminum clusters, and mixed carbon/silicon clusters. The effects of complexation of water will also be considered, with the goal of elucidating whether water is physisorbed or dissociatively chemisorbed. 19th International Symposium on Small Particles and Inorganic Clusters August 12-17, 2018, Hangzhou China Monday August 13th INV2 Photoluminescent Metal-Containing Cluster Ions Manfred M. Kappes1,2 1 Institute of Physical Chemistry, KIT, Karlsruhe, Germany 2 Institute of Nanotechnology, KIT, Karlsruhe, [email protected] Isolated ionic clusters held together mainly by Coulomb interactions have been of interest to cluster science since before ISSPIC-I. Over the years, system complexity has evolved from alkali halide clusters to experimentally more demanding metal-organic aggregates thus also making contact to mainstream chemistry. Advancements in mass spectrometry and associated hybrid methods have made this possible --- driven to a significant degree by technology developed in the cluster community. This talk will discuss recent work on photoluminescent metal-organic aggregates containing transition or lanthanoid metal ions. We have studied them after electrospray ionization - using high resolution ion mobility spectrometry, trapped ion photoluminescence spectroscopy and time-resolved photoelectron spectroscopy [1-3]. Whereas the emission spectroscopy of isolated cationic luminophores can be readily probed (and compared to solution), this is not the case for multianionic systems. Instead of strong photoluminescence as in condensed phase, these species undergo excited state electron tunneling detachment (ESETD). The competing mechanisms will be discussed and explained. [1] M.-O. Winghart, J.-P. Yang, M. Vonderach, A.-N. Unterreiner, D.-L. Huang, L.-S. Wang, S. Kruppa, C. Riehn and M. Kappes, J. Chem. Phys., 144, 054305 (2016) [2] J.-F. Greisch, J. Chmela, M. E. Harding, D. Wunderlich, B. Schaefer, M. Ruben, W. Klopper, D. Schooss and M. Kappes, Phys. Chem. Chem. Phys., 19, 6105 (2017) [3] J. Chmela, J.-F. Greisch, M. E. Harding, W. Klopper, M. Kappes and D. Schooss, J. Phys. Chem. A, 122, 2461 (2018) 19th International Symposium on Small Particles and Inorganic Clusters August 12-17, 2018, Hangzhou China Monday August 13th HT1 Dalian Coherent Light Source-Based Infrared Spectroscopy of Neutral Clusters Ling Jiang State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China E-mail: [email protected] Dalian Coherent Light Source (DCLS) delivers the Vacuum Ultraviolet Free Electron Laser (VUV-FEL) with high brightness and ultrafast laser pulses in the 50-180 nm wavelength region in picoseconds or 100 femtoseconds, which is an ideal light source for the ionization of molecular systems and the excitation of valence electrons with very high efficiency. DCLS is operated in the mode of High Gain Harmonic Generation (HGHG), which is beneficial to narrow bandwidth, stable power, and low cost due to fewer undulators. The VUV-FEL power for individual pulse at 133 nm approached more than 200 microJoules. The user experiment started in June, 2017. It is open for good proposals from the whole world. In this talk, we will present the commission and main specifications of DCLS, and the first experiment of DCLS- based infrared spectroscopy of neutral water clusters. 19th International Symposium on Small Particles and Inorganic Clusters August 12-17, 2018, Hangzhou China Monday August 13th INV3 Two-dimensional boron sheets Kehui Wu Institute of Physics, Chinese Academy of Sciences [email protected] Seeking for low-dimensional boron allotropes has attracted considerable interest in the past decades and theoretical works predicted the existence of 2D boron sheets (or namely borophene). As boron has only three valence electrons, the electron deficiency makes a honeycomb lattice of boron energetically unstable. Instead, a triangular lattice with periodic holes was predicted to be more stable. In 2015, we successfully synthesized 2D boron sheets on silver surface, which host triangular lattice with different arrangements of hexagonal holes [1,2]. An intriguing question is whether it is possible to prepare a borophene monolayer with a pure honeycomb lattice. Honeycomb borophene will naturally host Dirac fermions and thus intriguing electronic properties resembling other group IV elemental 2D materials. Recently, We reported the successful preparation of a purely honeycomb, graphene-like borophene, by using an Al(1 1 1) surface as the substrate and molecular beam epitaxy (MBE) growth in ultrahigh vacuum. Scanning tunneling microscopy (STM) images reveal perfect monolayer borophene with planar, non-buckled honeycomb lattice similar as graphene. Theoretical calculations show that the honeycomb borophene on Al(1 1 1) is energetically stable. Remarkably, nearly one electron charge is transferred to each boron atom from the Al(1 1 1) substrate and stabilizes the honeycomb borophene structure [3]. This work demonstrated that one can manipulate the borophene lattice by controlling the charge transfer between the substrate and the borophene. And the honeycomb borophene provides attractive possibility to construct boron-based atomic layers with unique electronic properties such as Dirac states, as well as to control superconductivity in boron-based compounds. Figure 1. High resolution STM images of honeycomb borophene monolayer on Al(1 1 1). (a) STM image (15 nm × 15 nm) showing the large- period, triangular corrugation. (b) A high resolution STM image (2.4 nm × 2.4 nm) of the area marked by black rectangle in (a), showing a flat honeycomb lattice. (c) 3D STM image (4 nm × 4 nm) of the area marked by white rectangle in (a). The scanning parameters for (a-c) are: sample bias −11 mV, I = 130 pA. References: [1] B. J. Feng et al. Nat. Chem. 8, 563(2016) [2] B. J. Feng et al. Phys. Rev. Lett. 118, 096401 (2017) [3] W. B. Li et al. Sci. Bull. 5, 282(2018) 19th International Symposium on Small Particles and Inorganic Clusters August 12-17, 2018, Hangzhou China Monday August 13th HT2 Manipulating the magnetic moment of graphene-supported palladium clusters by adsorption of hydrogen María J. López1, María Blanco-Rey2,3, J. Iñaki Juaristi4,3, Maite Alducin4,2,3, Alejandra Granja-DelRío1, Julio A. Alonso1,3 1 Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, Spain 2 Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU), Donostia-San Sebastián, Spain. 3 Donostia International Physics Center (DIPC), Donostia-San Sebastián, Spain 4 Departamento de Física de Materiales, Facultad de Químicas UPV/EHU, Donostia-San Sebastián, Spain [email protected] The catalytic activity of transition metal (TM) clusters and nanoparticles supported on carbonaceous materials towards the dissociation of molecular hydrogen in two hydrogen atoms plays a key role in a variety of technological applications
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