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I am Harald, Dr. (phd) of chemistry, in my thesis I used 2-pyridone as a catalyst for aminolysis reaction. At that time I was working at the Ludwig Maximilians University. I was employed at the Max Planck Institute for Solar System Research working on the GC-MS of the Rosalind Franklin (rover), now I work for OHB SE.
Contributions[edit]
Featured articles[edit]
Germanium, Niobium, Zinc, Iridium, Yttrium, Caesium
Good articles[edit]
Scandium,
Hafnium,
Vanadium,
Chromium,
Tantalum,
Molybdenum,
Rhenium,
Boron,
Osmium,
Caesium,
Manganese,
Tellurium,
Nickel,
Group 4 element,
Ruthenium,
Thallium,
Rhodium,
Platinum,
Rubidium,
Cobalt,
Palladium,
Cadmium,
Potassium,
Antimony,
Bismuth,
Lead
Other articles[edit]
- Chemicals: Sodium nitrate,
2-Pyridone, Benzoic acid, Potassium sulfate, 
Bromine trifluoride, Uranium trioxide, Xenon tetroxide, Boron trichloride, Copper(II) fluoride, Prismane, Heavy water, 
Diborane 
Germanium(IV) sulfide, Cattierite Tetraethylgermanium, Ferroniobium, Yttrium phosphate, Yttrium nitride, Ferromolybdenum, Cattierite, Depleted zinc oxide, Patronite, AlBeMet, Potassium tetraperoxochromate(V), Chrome alum, Bohemium, Ilmenium, Panchromium, Helvetium, Pelopium, Dianium, Sequanium, Wasium, Gnomium , Austrium, Decipium, Carolinium, Berzelium , 4-Phenyl-1,2,4-triazole-3,5-dione, 
Nebulium, Iron-55
- Chemists: Georg Wittig, Otto Wallach, Henri Moissan, Fritz Pregl, Heinrich Otto Wieland, Adolf Otto Reinhold Windaus, Hans Conrad Leipelt, K. Barry Sharpless, Ferdi Schüth, Jürgen Gauß, Dominik Perler, Felix Otto, Thomas Carell, Patrick Cramer, Ferenc Krausz, Hermann Irving Schlesinger, Edward Schunck, Frank Lee Pyman, Carl Schorlemmer, Johann Gottlieb, Gottfried Wilhelm Leibniz Prize, Dieter Seebach, Barry Trost, Theodor Zincke, Heinz Gerischer, George Ernest Gibson, Eduard Zintl, Karl von Auwers, Rolf Huisgen, Otto Folin, Otto Ruff, Sergey Reformatsky, Peter Griess, Traugott Sandmeyer, Robert Elderfield, John Ulric Nef , Victor Villiger, Carl Theodore Liebermann, Wilhelm Henneberg, Karl Wilhelm Rosenmund , Friedrich Gustav Carl Emil Erlenmeyer , Fritz Arndt , Bernd Eistert, Ernst Otto Beckmann, Alexei Yevgrafovich Favorskii, Emanuele Paternò, Lev Aleksandrovich Chugaev, Julius Stieglitz, Ferdinand Tiemann, Walter Dieckmann, Eugen Bamberger, Emil Votoček, Clemens Winkler, Ulrich Schöllkopf, Bernhard Tollens, Richard Herz, Friedrich Raschig, Hans von Pechmann, Richard Anschütz, James Bryant Conant, Hideki Sakurai, George I. Fujimoto, Makoto Kumada, Kenkichi Sonogashira, Tohru Fukuyama, Carl Jacob Löwig, Annemarie Renger, Karl Ernst Claus, Karl Friedrich Wilhelm Claus, Victor von Richter, Willem Alberda van Ekenstein, Jocelyn Field Thorpe, Howard Ensign Simmons, Jr., Leopold Horner, Hans Theodor Bucherer, August Bischler, Zdenko Hans Skraup, Adolf Lieben, Anton Vilsmeier, Alfred Einhorn, Daniel Swern, Fritz ter Meer, Edmund ter Meer, Heinz Hunsdiecker, Rudolf Schmitt, Marc Tiffeneau, John Kenneth Stille, Walter Abraham Jacobs, Julius Bredt, Ludwig Knorr, Paul Lebau, Hans Tropsch, Julius Tröger, Amé Pictet, Stefan Niementowski, Guido Goldschmiedt, Emil Knoevenagel, Alan R. Katritzky, Ioan Tănăsescu, Samuel M. McElvain, Eduard Linnemann, Alfred Wohl, Friedrich Emich, Armin Weiß, Wilhelm Meyerhoffer , Rudolf Schmitt, Robert H. Shapiro, Jacob Volhard, Hugo Erdmann, Oskar Piloty, Ludwig Ramberg, Klaus Kern, Markus Aspelmeyer, Hans Heinrich Landolt, Leopold von Pebal, Carl Gustav Guckelberger, Eugen Freiherr von Gorup-Besanez, Lambert Heinrich von Babo, Friedrich Heeren, Julius Neßler, Otto Linné Erdmann, Theodor Wertheim, Viktor von Lang, Heinrich Hlasiwetz, Wolfgang Steglich, Andrius Baltuska, Zoltan Nusser, Ronald Micura, James Apjohn, Julius Tafel, Carl Magnus von Hell, Carl Schotten, Saul Winstein, Richard Wolffenstein (chemist), Icilio Guareschi, Ludwig Wolff, George Thomas Beilby , Richard Müller, Edgar Heilbronner, Moisés Santiago Bertoni, Arnold Durig, Carl von Than , Leander Ditscheiner, Hugo Weidel, Wilhelm Trendelenburg, Friedrich Emich, Alfred Wohl, Ernst Späth, Otto von Fürth, Johann Mulzer, Harmon Craig, Otto Porsch, Wilhelm Michler, Josef Herzig, Oskar Zoth, Josef Maria Eder, Wilhelm Meyerhoffer, James Cullen Martin Gregor Schwartz-Bostunitsch, Siegmund Gabriel, Francis Robert Japp, August Michaelis, Angelo Angeli, William Francis Hillebrand, Julius Adolph Stöckhardt, Lionel Robert Wilberforce, Christian Blomstrand, Bohuslav Brauner, Jan Hendrik de Boer, Louis Claude Cadet de Gassicourt, Berta Karlik, Kenneth Ross MacKenzie, Georg Zundel, Claude-Auguste Lamy, Harry Stone Mosher, Anatol Zhabotinsky, Sven Rinman, Robert Wintgen, Fritz Laves, Wilhelm_Knop, Charles_Frédéric_Kuhlmann, Ignatius Gottfried Kaim, John William Nicholson, Alfred E. Treibs, Horia Hulubei, Walter Minder, Alice_Leigh-Smith, Louis Joseph Troost, Felix Maria von Exner-Ewarten , Fred Allison , Gerhard Krüss, Charles Baskerville (chemist), Aristid von Grosse, Karl Andreas Hofmann, Friedrich Oskar Giesel , Eugen de Haën, Gerhart Jander, Nikolai Menshutkin, Heinz-Günter Wittmann, Julius Arnold Koch, Rudolf Christian Böttger, Gustavus Detlef Hinrichs, Johann Georg Anton Geuther, Conrad Laar, Gerhard Carl Schmidt, Alton E. Bailey, Lloyd Noel Ferguson, Karl_Fischer_(chemist) Bengt Andersson Qvist, Eugen Baumann, Andreas Sigismund Marggraf, Lorenz Florenz Friedrich von Crell, Edvard Hjelt Alan_Carrington John Shipley Rowlinson, Paul Friedländer (chemist), Adolf Karl Ludwig Claus, Theodor Grotthuss, Heinrich_Jacob_Goldschmidt, Alfred Rieche, Carl Scheibler, Émile_Sarrau, Nils_Johan_Berlin, Hans_Bock, Müller von Reichenstein, Steven M. Weinreb, Yoshihiko Ito (chemist), Georg von Georgievics, Ferenc Szabadváry, Walter Lenkeit
- Others Biographies, Ferruccio Zambonini, Heinz Bauer, Peter Ramsauer, Norbert Röttgen, Samuel Fedida Franz Martin Hilgendorf , Stefan Meyer (physicist), Ian Axford, Walter Dieminger , John Adam Fleming , Enrico Clerici, Karl-Otto Kiepenheuer , Friedrich Seifert, Josef Zemann, Friedrich Wilhelm Semmler, Gustav Winkler, Friedrich Johann Karl Becke, Hermann Goldschmidt, Stefan Richarz, Gustav August Munzer, Johann Andreas Buchner, Ludwig Andreas Buchner, Herbert McLeod, Otto Friedrich Bernhard von Linstow, József_Sándor_Krenner , Albert E. Foote
- Mines Bayan Obo, Tara Mine, Galmoy Mine, Tanco Mine, Ngwenya Mine, Allchar deposit, Sotiel-Migollas_mine, La_Zarza_mine, Neves-Corvo_mine, Aljustrel_mine, Lousal_mine, Carlin–type_gold_deposit, Västanå
- Churches and monasteries: Wies
- Others: Minami Kantō gas field, Staatliches Landschulheim Marquartstein, Sylvensteinspeicher , Weitsee, 'Sunrise (telescope) , Baltimore Chrome Works, Traité Élémentaire de Chimie, Avogadrite , Vargula hilgendorfii, Institute for Radium Research, Vienna Kiepenheuer_Institute_for_Solar_Physics, Göttingen_Observatory, Dzhalindite, (162173)_1999_JU3
Periodic Table by Quality
Periodic Table by Quality
Test Pages[edit]
Germanium, 
Scandium,
