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composed of tris(bipyridine)ruthenium(III) as photosensitizer, ethylenediaminetetraacetic acid disodium salt as sacrificial reagent, methyl viologen as electron relay, and a colloidal dispersion of polymer-protected noble-metal clusters, prepared by alcohol-reduction, as catalyst. Among the noble-metal clusters examined, Pt clusters showed the highest activity for the formation of methane as well as hydrogen. In order to improve the activity, oxidized clusters and bimetallic clusters were also applied. For example, the CH4 yield in 3-h irradiation increased from 51

equations having a deterministic sequence for a potential (A. Sütő and H. Kunz). Finally a course on multifractal analysis is given by J. Peyrière. The book reflects the intense scientific communication between mathematicians, physicists and material scientists. It is a highly recommended compendium. F. Kremer, Leipzig U. Kreibig, M. Vollmer: Optical Properties of Metal Clusters. Springer Series in Ma- terial Science. U. Gonser, R. M. Osgood. Jr.. M. B. Panish, H. Sakaki (Eds.), Vol. 25. Guest-Editor: J. P. Toennies, Springer, Berlin 1995. ISBN 3-540-57836-6, 532 pages

Zeitschrift für Physikalische Chemie, Bd. 196, S. 1-41 (1996) © by R. Oldenbourg Verlag, München 1996 Laser Spectroscopy of Metal Clusters By L. Wöste Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany Dedicated to Prof. Dr. H. Baumgärtel on the occasion of his 60th birthday, and to Prof. Dr. E. Schumacher on the occasion of his 70th birthday (Received March 27, 1996; accepted April 15, 1996) Metal clusters I Laser spectroscopy I Stationary observations I Transient phenomena The present contribution provides a review

Pure Appl. Chem., Vol. 73, No. 2, pp. 305–309, 2001. © 2001 IUPAC 305 Isolobal displacement methodology for the synthesis of transition-metal cluster complexes containing various biscyclopentadienyl ligands* Li-Cheng Song† and Dian-Shun Guo Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China Abstract: The isolobal displacement methodology for the synthesis of biscyclopentadienyl- bridged transition-metal cluster complexes has been developed. This methodology involves various isolobal displacement

Pure & Appl. Chem., Vol. 63, No. 6, pp. 807-812, 1991. Printed in Great Britain. @ 1991 IUPAC ADONIS 206922209100085H Theoretical aspects of metal cluster chemistry D. Michael P. Mingos Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR Abstract - During the last twenty years the Polyhedral Skeletal Electron Pair Theory and the isolobal analogy have provided a theoretical basis for the rapid experimental developments, which have occurred in metal cluster chemistry. These theoretical principles have been underpinned

Zeitschrift tur Physikalische Chemie, Bd. 203, S. 45-55 (1998) © by R. Oldenbourg Verlag, München 1998 Photoelectron Spectroscopy of Transition Metal Clusters By Lai-Sheng Wang* and Hongbin Wu Department of Physics, Washington State University, 100 Sprout Road, Richland, WA 99352 USA and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K2-14, Richland, WA 99352 USA (Received September 2, 1996) Photoelectron spectroscopy I Metal clusters Photoelectron spectroscopy (PES) of size-selected anions is a powerful experimental tech

Zeitschrift fur Physikalische Chemie Neue Folge, Bd. 156, S. 23-40 (1988) © by R. Oldenbourg Verlag, Munchen 1988 - 0044-3336/88 $3.00 + 0.00 Metal Clusters: Between the Individual and Collectivity* Manfred M. Kappes and Ernst J. Schumacher Institute for Inorganic and Physical Chemistry, University of Bern, CH-3000 Bern 9 Properties of clusters are now available as contiguous data sets for a series of sizes of alkali metals, aluminum, several transition metals, and groups lb, 2b: Abundances, ionization potentials, electrical polarizabilities, magnet- ic moments

Terpenoid synthases are ubiquitous enzymes that catalyze the formation of structurally and stereochemically diverse isoprenoid natural products. Many isoprenoid coupling enzymes and terpenoid cyclases from bacteria, fungi, protists, plants, and animals share the class I terpenoid synthase fold. Despite generally low amino acid sequence identity among these examples, class I terpenoid synthases contain conserved metal-binding motifs that coordinate to a trinuclear metal cluster. This cluster not only serves to bind and orient the flexible isoprenoid substrate in the precatalytic Michaelis complex, but it also triggers the departure of the diphosphate leaving group to generate a carbocation that initiates catalysis. Additional conserved hydrogen bond donors assist the metal cluster in this function. Crystal structure analysis reveals that the constellation of three metal ions required for terpenoid synthase catalysis is generally identical among all class I terpenoid synthases of known structure.

Zeitschrift für Physikalische Chemie, Bd. 208, S. 151-166 (1999) © by R. Oldenbourg Verlag, München 1999 Tip-Induced Formation of Nanometer-Sized Metal Clusters* By J. C. Ziegler, G. E. Engelmann and D. M. Kolb** Department of Electrochemistry, University of Ulm, D-89069 Ulm (Received February 5, 1998) Electrochemistry I Metal clusters I Metal deposition I Nanomodification I Scanning tunneling microscopy The tip of a scanning tunneling microscope has been used to deposit nanometer-sized copper and palladium clusters on flat gold electrode surfaces at

Zeitschrift für Physikalische Chemie, Bd. 208, S. 151-166 (1999) © by R. Oldenbourg Verlag, München 1999 Tip-Induced Formation of Nanometer-Sized Metal Clusters* By J. C. Ziegler, G. E. Engelmann and D. M. Kolb** Department of Electrochemistry, University of Ulm, D-89069 Ulm (Received February 5, 1998) Electrochemistry I Metal clusters I Metal deposition I Nanomodification I Scanning tunneling microscopy The tip of a scanning tunneling microscope has been used to deposit nanometer-sized copper and palladium clusters on flat gold electrode surfaces at