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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 Maximilian University of Munich|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 ==

===Featured articles===
{{classicon|FA}} '''[[Germanium]]''', {{classicon|FA}} '''[[Niobium]]''', {{classicon|FA}} [[Zinc]], {{classicon|FA}} '''[[Iridium]]''', {{classicon|FA}}[[Yttrium]], {{classicon|FA}} [[Caesium]]

===Good articles===
{{classicon|GA}} '''[[Scandium]]''',
{{classicon|GA}} '''[[Hafnium]]''',
{{classicon|GA}} '''[[Vanadium]]''',
{{classicon|GA}} '''[[Chromium]]''',
{{classicon|GA}} '''[[Tantalum]]''',
{{classicon|GA}} '''[[Molybdenum]]''',
{{classicon|GA}} '''[[Rhenium]]''',
{{classicon|GA}} '''[[Boron]]''',
{{classicon|GA}} '''[[Osmium]]''',
{{classicon|GA}}    [[Caesium]],
{{classicon|GA}} '''[[Manganese]]''',
{{classicon|GA}} '''[[Tellurium]]''',
{{classicon|GA}} '''[[Nickel]]''',
{{classicon|GA}} '''[[Group 4 element]]''',
{{classicon|GA}} '''[[Ruthenium]]''',
{{classicon|GA}} '''[[Thallium]]''',
{{classicon|GA}} '''[[Rhodium]]''',
{{classicon|GA}} '''[[Platinum]]''',
{{classicon|GA}} '''[[Rubidium]]''',
{{classicon|GA}} '''[[Cobalt]]''',
{{classicon|GA}} '''[[Palladium]]''',
{{classicon|GA}} '''[[Cadmium]]''',
{{classicon|GA}} '''[[Potassium]]''',
{{classicon|GA}} '''[[Antimony]]''',
{{classicon|GA}} '''[[Bismuth]]''',
{{classicon|GA}} '''[[Lead]]'''

===Other articles===
*Organic chemistry reactions: [[Beckmann rearrangement]], [[Diels-Alder reaction]], [[Pinner reaction]], [[Sharpless epoxidation]], [[Sharpless bishydroxylation]], [[Swern oxidation]], [[Ugi reaction]], [[Aldol reaction]], [[Ugi reaction]], [[Lindgren oxidation]]

*Chemistry: [[Organic reactions]], [[Biogas]], [[Chemical warfare]], '''[[Gas porosity (casting)]]''', '''[[Wellman-Lord Process]]''' , '''[[Brin process]]''' , '''[[Sulfur concrete]]'''

*Chemicals: [[Sodium nitrate]], {{classicon|B}}'''[[2-Pyridone]]''', {{classicon|B}}'''[[Benzoic acid]]''', [[Potassium sulfate]], {{classicon|Start}}'''[[Bromine trifluoride]]''', {{classicon|B}}[[Uranium trioxide]], [[Xenon tetroxide]], '''[[Boron trichloride]]''', {{classicon|Start}}'''[[Copper(II) fluoride]]''', {{classicon|Start}}'''[[Prismane]]''', {{classicon|B}}[[Heavy water]], {{classicon|A}}'''[[Diborane]]''' {{classicon|Stub}}'''[[Germanium(IV) sulfide]]''', '''[[Cattierite]]''' '''[[Tetraethylgermanium]]''', '''[[Ferroniobium]]''', '''[[Yttrium phosphate]]''', '''[[Yttrium nitride]]''', '''[[Ferromolybdenum]]''', {{classicon|Stub}}'''[[Cattierite]]''', '''[[Depleted zinc oxide]]''', '''[[Patronite]]''', '''[[AlBeMet]]''', '''[[Potassium tetraperoxochromate(V)]]''', {{classicon|Start}}'''[[Chrome alum]]''', '''[[Bohemium]]''', '''[[Ilmenium]]''', '''[[Panchromium]]''', '''[[Helvetium]]''', '''[[Pelopium]]''', '''[[Dianium]]''', '''[[Sequanium]]''', '''[[Wasium]]''', '''[[Gnomium ]]''', '''[[Austrium]]''', '''[[Decipium]]''', '''[[Carolinium]]''', '''[[Berzelium]]''' , '''[[4-Phenyl-1,2,4-triazole-3,5-dione]]''', {{classicon|}}{{classicon|C}}'''[[Nebulium]]''', {{Classicon|}}{{Classicon|C}}'''[[Iron-55]]'''

* Chemists:  {{classicon|C}}'''[[Georg Wittig]]''', {{classicon|Start}}'''[[Otto Wallach]]''', {{classicon|C}}'''[[Henri Moissan]]''', {{classicon|Start}}'''[[Fritz Pregl]]''', {{classicon|Start}}'''[[Heinrich Otto Wieland]]''', {{classicon|Start}}'''[[Adolf Otto Reinhold Windaus]]''', [[Hans Conrad Leipelt]], {{classicon|Start}} [[K. Barry Sharpless]], [[Ferdi Schüth]], [[Jürgen Gauß]], [[Dominik Perler]], [[Felix Otto]], [[Thomas Carell]], [[Patrick Cramer]], [[Ferenc Krausz]], {{classicon|Stub}}'''[[Hermann Irving Schlesinger]]''', {{classicon|C}}'''[[Edward Schunck]]''', {{classicon|Start}}'''[[Frank Lee Pyman]]''', {{classicon|Start}}'''[[Carl Schorlemmer]]''', {{classicon|Stub}}'''[[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]]''', {{classicon|Start}}'''[[Otto Ruff]]''', {{classicon|Start}}'''[[Sergey Reformatsky]]''',    '''[[Peter Griess]]''', [[Traugott Sandmeyer]], {{classicon|Stub}}'''[[Robert Elderfield]]''', {{classicon|Stub}}'''[[John Ulric Nef]]'''  , {{classicon|Stub}}'''[[Victor Villiger]]''', {{classicon|Start}}'''[[Carl Theodore Liebermann]]''', {{classicon|Stub}}'''[[Wilhelm Henneberg]]''', {{classicon|Stub}}'''[[Karl Wilhelm Rosenmund]]''' , {{classicon|Stub}}'''[[Friedrich Gustav Carl Emil Erlenmeyer ]]''', '''[[Fritz Arndt ]]''', '''[[Bernd Eistert]]''', {{classicon|C}}'''[[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]]''', {{classicon|Start}}[[Alfred Einhorn]], {{classicon|Stub}}'''[[Daniel Swern]]''', {{classicon|Start}}'''[[Fritz ter Meer]]''', {{classicon|Stub}}'''[[Edmund ter Meer]]''', {{classicon|Stub}}'''[[Heinz Hunsdiecker]]''', {{classicon|Start}}'''[[Rudolf Schmitt]]''', {{classicon|Stub}}'''[[Marc Tiffeneau]]''', {{classicon|Stub}}'''[[John Kenneth Stille]]''', {{classicon|Stub}}'''[[Walter Abraham Jacobs]]''', {{classicon|Stub}}'''[[Julius Bredt]]''', {{classicon|C}}{{classicon}}'''[[Ludwig Knorr]]''', {{classicon|Stub}}'''[[Paul Lebau]]''', {{classicon|Start}}'''[[Hans Tropsch]]''', {{classicon|Stub}}'''[[Julius Tröger]]''', '''[[Amé Pictet]]''', {{classicon|Stub}}'''[[Stefan Niementowski]]''', {{Classicon|}}{{Classicon|C}}'''[[Guido Goldschmiedt]]''', {{classicon|Stub}}'''[[Emil Knoevenagel]]''', '''[[Alan R. Katritzky]]''', '''[[Ioan Tănăsescu]]''', '''[[Samuel M. McElvain]]''', '''[[Eduard Linnemann]]''', '''[[Alfred Wohl‎]]''', '''[[Friedrich Emich]]''',   {{classicon|Start}}'''[[Armin Weiß]]''',   ''' [[Wilhelm Meyerhoffer]] ''', '''[[Rudolf Schmitt]]''',  <!--bishierher-->'''[[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]]''', {{Classicon|}}{{Classicon|C}}'''[[Carl Schotten]]''', '''[[Saul Winstein]]''', '''[[ Richard Wolffenstein (chemist)]]''', '''[[Icilio Guareschi]]''', '''[[Ludwig Wolff]]''', '''[[George Thomas Beilby ]]''', '''[[Richard Müller (chemist)|Richard Müller]]''', '''[[Edgar Heilbronner]]''', '''[[Moisés Santiago Bertoni]]''', '''[[Arnold Durig]]''', {{Classicon|}}{{Classicon|Start}}'''[[Carl von Than ]]''', '''[[Leander Ditscheiner]]''', {{Classicon|}}{{Classicon|Start}}'''[[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]]''', {{Classicon|}}{{Classicon|Start}}'''[[Josef Maria Eder]]''', '''[[Wilhelm Meyerhoffer]]''', ''' [[James Cullen Martin]] ''' ''' [[Gregor Schwartz-Bostunitsch]]''', ''' [[Siegmund Gabriel]]''',  '''[[Francis Robert Japp]]''', '''[[August Michaelis]]''', '''[[Angelo Angeli]]''', '''[[William Francis Hillebrand]]''', {{Classicon|C}}'''[[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]]''', {{classicon|Start}}'''[[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]]''' , {{Classicon|C}}{{Classicon|}} '''[[Fred Allison]]''' , '''[[Gerhard Krüss]]''', {{Classicon|Start}}'''[[Charles Baskerville (chemist)]]''', '''[[Aristid von Grosse]]''', '''[[Karl Andreas Hofmann]]''', {{Classicon|C}}{{Classicon|}} '''[[Friedrich Oskar Giesel]]''' , '''[[Eugen de Haën]]''', '''[[Gerhart Jander]]''',  {{Classicon|C}}{{Classicon|}} [[Nikolai Menshutkin]],  '''[[Heinz-Günter Wittmann]]''',  '''[[Julius Arnold Koch]]''',  {{Classicon|}}{{classicon|Start}}'''[[Rudolf Christian Böttger]]''', {{Classicon|}}{{Classicon|C}} '''[[Gustavus Detlef Hinrichs]]''',  {{Classicon|}}{{Classicon|C}}'''[[Johann Georg Anton Geuther]]''', {{classicon|Stub}}'''[[Conrad Laar]]''', {{classicon|Stub}}'''[[Gerhard Carl Schmidt]]''', {{classicon|Stub}}'''[[Alton E. Bailey]]''', {{classicon|Stub}}'''[[Lloyd Noel Ferguson]]''', {{classicon|Stub}}'''[[Karl_Fischer_(chemist)]]''' {{classicon|Stub}}'''[[Bengt Andersson Qvist]]''', {{Classicon|}}{{Classicon|C}}'''[[Eugen Baumann]]''',  {{Classicon|}}{{Classicon|C}}'''[[Andreas Sigismund Marggraf]]''', {{Classicon|C}}{{Classicon|}} '''[[Lorenz Florenz Friedrich von Crell]]''',  {{Classicon|}}{{Classicon|C}} '''[[Edvard Hjelt]]'''  '''[[Alan_Carrington]]''' '''[[John Shipley Rowlinson]]''', {{Classicon|}}{{Classicon|Start}}'''[[Paul Friedländer (chemist)]]''', {{Classicon|}}{{Classicon|Start}}'''[[Adolf Karl Ludwig Claus]]''', {{Classicon|}}{{Classicon|Start}}'''[[Theodor Grotthuss]]''', '''[[Heinrich_Jacob_Goldschmidt]]''', '''[[Alfred Rieche]]''', {{Classicon|}}{{Classicon|Start}}'''[[Carl Scheibler]]''', '''[[Émile_Sarrau]]''', '''[[Nils_Johan_Berlin]]''', '''[[Hans_Bock_(chemist)|Hans_Bock]]''', '''[[Müller von Reichenstein]]''', '''[[Steven M. Weinreb]]''', '''[[Yoshihiko Ito (chemist)]]''', '''[[Georg von Georgievics]]''', '''[[Ferenc Szabadváry]]''', [[ Walter Lenkeit]]

*Others Biographies, {{classicon|Stub}}'''[[Ferruccio Zambonini]]''', '''[[Heinz Bauer]]''', {{classicon|Stub}}'''[[Peter Ramsauer]]''', {{classicon|Stub}}'''[[Norbert Röttgen]]''', '''[[Samuel Fedida]]''' {{classicon|}}{{classicon|Start}}'''[[Franz Martin Hilgendorf ]]''', {{classicon|}}{{classicon|Start}}'''[[Stefan Meyer (physicist)]]''', {{Classicon|}}{{Classicon|Start}}'''[[Ian Axford]]''', {{Classicon|}}{{Classicon|Start}}'''[[Walter Dieminger ]]''', '''[[John Adam Fleming ]]''', '''[[ Enrico Clerici]]''', {{Classicon|}}{{classicon|Start}}'''[[Karl-Otto Kiepenheuer ]]''', {{classicon|Start}}'''[[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]]''', {{classicon|Start}}'''[[Tara Mine]]''', {{classicon|Start}}'''[[Galmoy Mine]]''', {{Classicon|}}{{Classicon|C}}'''[[Tanco Mine]]''', {{Classicon|}}{{Classicon|Start}}'''[[Ngwenya Mine]]''', {{Classicon|Start}}'''[[Allchar deposit]]''', {{classicon|Stub}}'''[[Sotiel-Migollas_mine]]''', {{classicon|Stub}}'''[[La_Zarza_mine]]''', {{classicon|Stub}}'''[[Neves-Corvo_mine]]''', {{classicon|Stub}}'''[[Aljustrel_mine]]''', {{classicon|Stub}}'''[[Lousal_mine]]''', {{Classicon|}}{{classicon|Start}}'''[[Carlin–type_gold_deposit]]''', '''[[Västanå]]'''

*Churches and monasteries:  [[Wies]]

*Others: {{classicon|Start}}'''[[Minami Kantō gas field]]''', {{classicon|Start}}'''[[Staatliches Landschulheim Marquartstein]]''', {{classicon|Start}}'''[[Sylvensteinspeicher ]]''', {{classicon|Stub}}'''[[Weitsee]]''', '{{classicon|Start}}'''[[Sunrise (telescope) ]]''',  {{classicon|Stub}}'''[[Baltimore Chrome Works]]''', {{classicon|Stub}}'''[[Traité Élémentaire de Chimie]]''', '''[[Avogadrite]]''' , {{Classicon|}}{{Classicon|C}}'''[[Vargula hilgendorfii]]''', {{classicon|}}{{classicon|Start}}'''[[Institute for Radium Research, Vienna]]''' {{Classicon|}}{{classicon|Start}}'''[[Kiepenheuer_Institute_for_Solar_Physics]]''', {{Classicon|}}{{classicon|Start}}'''[[Göttingen_Observatory]]''',  '''[[Dzhalindite]]''', '''[[(162173)_1999_JU3]]'''

[[Image:Periodic Table by Quality.SVG| right| 450px|thumb | Periodic Table by Quality]]

[[Image:Periodic table by article value.PNG| right| 450px|thumb | Periodic Table by Quality]]

*[[User:Stone/contributed pictures]]

== Test Pages ==

*[[User:Stone/Flouride|Fluoride]]
*[[User:Stone/Benzaldehyde|Benzaldehyde]]
*[[User:Stone/Uraniumtrioxide|Uraniumtrioxide]]
*[[User:Stone/boron chemistry|Boron chemistry]]
*[[User:Stone/oxides|Oxides]]
*[[User:Stone/2-Pyridone|2-Pyridone]]
*[[User:Stone/MPS|MPS]]
*[[User:Stone/Arsenobetaine|Arsenobetaine]]
*[[User:Stone/Element Quality Check|Element Quality Check]]
*[[Wikipedia:Unreviewed featured articles]].
*[[User:Stone/Editcounter|Editcounter]]
*[[User:Stone/Periodic Table by Quality|Periodic Table by Quality]]
*[[Special:RecentChangesLinked/User:Stone/PSE|RC wiki-elements]]
*[[Special:RecentChangesLinked/User:Stone/ambas|ambas]]
*[[Special:RecentChangesLinked/User:Stone/ambas2|ambas2]]

==Links==
*[[Portal:Germany]]
*[[Wikipedia:Scientific peer review]]
*[[Wikipedia:WikiProject Chemicals]]
*[[Wikipedia:WikiProject Chemistry]]
*[[Wikipedia:Chemistry_Collaboration_of_the_Month]]
*[[Wikipedia:Requests for arbitration/Depleted uranium]]
*[[Wikipedia:WikiCup]]
*[[Wikipedia:WikiCup/History/2010/Submissions/Stone]]
*[[Category:Wikipedian chemists|{{PAGENAME}}]]
*[[Wikipedia:WikiProject Unmanned space missions]]
*[[Wikipedia:WikiProject Space missions]]
*[[Wikipedia:List_of_WikiProjects]]
*[[Wikipedia:WikiProject_Biography]]
*[[User:AlexNewArtBot/ChemistrySearchResult]]
*[[tools:~dispenser/view/Dablinks]]
*[[tools:~daniel/WikiSense/Contributors.php]]
*[[tools:~dispenser/view/Checklinks]]
*[[tools:~dispenser/view/Readability]]
*[[tools:~verisimilus/Bot/DOI_bot/]]
*[[Wikipedia:Unreviewed_featured_articles]]
*[[tools:~dschwen/intersection/|intersection]]
*[[tools:~daniel/WikiSense/CategoryIntersect.php]]