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Topic: Alfred Werner


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In the News (Fri 18 Jan 19)

  
 BookRags: Alfred Werner Biography
Alfred Werner was a chemist and educator whose accomplishments included the development of the coordination theory of chemistry.
Werner was born December 12, 1866, in Mulhouse, a small community in the French province of Alsace.
Werner died on November 15, 1919, at a Zurich psychiatric institution, from arteriosclerosis of the brain.
www.bookrags.com /biography/alfred-werner-woc   (1043 words)

  
 Alfred Werner - Biography   (Site not responding. Last check: 2007-10-31)
Alfred Werner, son of factory foreman J.A. Werner and his wife Jeanne, née Tesche, was born on December 12, 1866, at Mülhausen in Alsace, where he went to school.
Werner's name will always be associated with the theory of coordination which he established and with his work on the spatial relationships of atoms in the molecule, the foundations of which were laid in the work he did, when he was only 24, for his doctorate thesis in 1892.
Werner was corresponding member of the Royal Society of Sciences (Königliche Gesellschaft der Wissenschaften) at Göttingen and of the Physico-Medical Society (Physikalisch-medizinische Sozietät) of Erlangen.
www.angelfire.com /ultra2/ghbdtn/2/werner-bio.html   (1083 words)

  
 Werner, Alfred   (Site not responding. Last check: 2007-10-31)
Werner demonstrated that different three-dimensional arrangements of atoms in inorganic compounds gives rise to optical isomerism (the rotation of polarized light in opposite directions by molecules that contain the same atoms but are mirror images of each other).
Werner was born in Mulhouse, Alsace, and studied in Switzerland at the Zürich Polytechnic, becoming professor there 1895.
In addition to ionic and covalent bonds, Werner proposed the existence of a set of coordination bonds resulting from an attractive force from the centre of an atom acting uniformly in all directions.
cartage.org.lb /en/themes/Biographies/MainBiographies/W/Werner/1.html   (171 words)

  
 Alfred Werner
The doctoral work of Werner was concerned with the chemistry of aromatic compounds, although after his appointment as professor he held classes in both organic and inorganic chemistry, as well as stereochemistry.
The most important scientific work of Werner, which led directly to the award of the Nobel Prize in 1913, was concerned with the structure and coordination theory of transition metal-amine complexes.
The suggestion from Werner that these complexes were based on an octahedral array of ligands coordinated to a central metal ion was, at that time, not well accepted.
www.aci.unizh.ch /coord/aw.html   (472 words)

  
 Nobel Prize in Chemistry 1913 - Presentation Speech
The concept of valence on which all modern chemical theory is based had been found unable to deal with a large and important group of mainly inorganic compounds, the so-called complex or molecular compounds, because it was unable to provide a satisfactory explanation of their internal structure.
Werner's theory has been supported in an extremely important and valuable manner by the stereochemical researches which he carried out as a sideline, mostly in connection with his work on the constitution of chemical compounds.
As to Werner's research work as a whole we can with good reason agree with the remark of an eminent research worker, that Werner's theoretical and experimental work in inorganic chemistry has opened up new paths of chemical research and is of positively revolutionary significance.
nobelprize.org /nobel_prizes/chemistry/laureates/1913/press.html   (784 words)

  
 Molecule of the Month: HEXOL
Later that year, Werner was appointed at the University of Zurich to teach organic chemistry and subsequently 45 of his 174 publications dealt with the organic chemistry of oximes, hydroxamic acids, and dyestuffs etc. In fact, it was not until 1902-1903 that he started to teach the main lecture course in inorganic chemistry.
It is not clear when Werner actually realised this since it was not until 1897, that is 4 years after the original proposal, that he mentioned in a letter to Arturo Miolati that he was searching for optically active complexes.
Werner's communication dealing with the resolution and optical activity of hexol as the bromide salts (tris-{tetraammine-u-dihydroxo-cobalt(III)}cobalt(III) bromide dihydrate) was published in 1914.
wwwchem.uwimona.edu.jm:1104 /MOTM/hexol/hexol.html   (841 words)

  
 Intute sciences - >Chemical Sciences: Alfred Werner and Coordination Compounds   (Site not responding. Last check: 2007-10-31)
Alfred Werner was born in Germany in 1866 and spent his life in academic institutions there.
Secondary valences were fixed in number by the nature of the central metal atom (usually 4 or 6); they were non-ionic (that is, the attachment was to neutral species or ions); they were directional; and they were not affected by primary valences.
Other factors being equal, the conductivity of an aqueous solution of an ionic salt is directly proportional to the number of ions produced in solution when the ionic salt is dissolved in water.
www.intute.ac.uk /sciences/reference/plambeck/chem2/p02243.htm   (343 words)

  
 Werner Complexes
By necessity they all highlight Alfred Werner, "the Father of Coordination Chemistry" who in 1893, proposed the octahedral configuration of transition metal complexes and in 1913 received the first
In this series of experiments, some simple cobalt(III) complexes are to be prepared, which show some of the properties that Werner was able to interpret using the octahedral model.
The oxidation of cobalt sulfate to the tetraamminecarbonate complex can be done by passing air through the solution for 2 hours, or more conveniently using hydrogen peroxide (although this is more costly, it allows the experiment to be easily completed in one session).
wwwchem.uwimona.edu.jm:1104 /lab_manuals/Werner.html   (621 words)

  
 MTA - Alfred E. Werner
Alfred E. Werner has been the commissioner of aviation and transportation for the Town of Islip and airport manager of MacArthur Airport since 1975.
Werner holds an Accredited Airport Executive rank with the American Association of Airport Executives.
Werner served as a control tower operator in the U.S. Air Force from 1948 to 1952.
www.mta.nyc.ny.us /mta/leadership/werner.htm   (179 words)

  
 [No title]   (Site not responding. Last check: 2007-10-31)
An originator of structure theory, Werner put forth his coordination theory of valency in 1893.
He introduced the concept of coordination number as well as geometrical and optical isomerism in inorganic compounds.
Werner was awarded the Nobel Prize in Chemistry in 1913 for his studies of coordination complexes and inorganic chemistry.
www.chem.uky.edu /courses/che105/biografy/werner.html   (75 words)

  
 No. 1181: Edith Humphrey
In 1897, Werner claimed that the molecular arrangements in such molecules had to be mirror images of each other.
Worse yet, Werner idolized Pasteur and was completely aware of his use of polarized light.
If she or Werner had only thought to test her crystals, she might've had part of a Nobel Prize as well.
www.uh.edu /engines/epi1181.htm   (553 words)

  
 HYLE 6-1 (2000): Pragmatism, Belief, and Reduction. Stereoformulas and Atomic Models in Early Stereochemistry
I argue that stereochemists constructed and used stereoformulas in a pragmatic way that ignored the physical implications of the spatial distribution of valence, and that the models of the atom were created to reconcile the physically curious concept of valence with known physical laws.
In his 1891 Habilitationsschrift, Werner proposed a non-mechanical conception of the atom in which he assumed that valence was simply a number and that chemical affinity was not divided at all.
Werner’s model was more comprehensive than Wunderlich’s, providing explanations not only for the tetrahedron, but also for the process of racemization, the interconversion of unsaturated molecules, benzene theory and the stereochemistry of nitrogen.
www.hyle.org /journal/issues/6/ramberg.htm   (8059 words)

  
 Alfred Werner Winner of the 1913 Nobel Prize in Chemistry
Alfred Werner Winner of the 1913 Nobel Prize in Chemistry
Alfred Werner Lab Experiments (submitted by Dr Robert Lancashire)
Alfred Werner (1866 - 1919) (submitted by Davis)
almaz.com /nobel/chemistry/1913a.html   (146 words)

  
 WERNER, ALFRED (1866 - 1919)   (Site not responding. Last check: 2007-10-31)
In 1893, a 26 year old Swiss chemist, Alfred Werner, in a flash of inspiration, solved the puzzle.
His coordination theory proposed that metal atoms tended to bind other groups in only a few ways, for example, to six groups in an octahedral arrangement or to four groups in a square-planar arrangement.
Werner has rightly been called the father of modern inorganic chemistry, and his achievements were recognized by a Nobel Prize in 1913.
www.scs.uiuc.edu /~mainzv/exhibit/werner.htm   (175 words)

  
 Alfred Werner Books - Signed, used, new, out-of-print
Alfred D?blin (1878-1957) studied medicine in Berlin and specialized in the treatment of nervous diseases.
Along with his experiences as a psychiatrist in the workers' quarter of Berlin, his writing was inspired by the work of Holderlin, Schopenhauer and Nietzsche and was first published in the literary magazine, Der Sturm.
Supplying much documentary material, the late Dr. Alfred Werner, an authority on the School of Paris painters, gives a cogent account of Modigliani's frenetic life.
www.alibris.com /search/books/author/Alfred_Werner   (451 words)

  
 1913
December 18 - Alfred Bester, American author (d.
January 4 - Alfred von Schlieffen, German field marshal (b.
November 7 - Alfred Russel Wallace, Welsh biologist (b.
www.brainyencyclopedia.com /encyclopedia/1/19/1913.html   (1929 words)

  
 Al Werner: ZoomInfo Business People Information   (Site not responding. Last check: 2007-10-31)
Al Werner's summary was automatically generated using 8 references found on the Internet.
Al Werner is Professor of Geology at Mount Holyoke College in Amherst, Massachusetts.
Al is an enthusiastic and talented teacher and is a frequent speaker on campus and a popular lecturer on MHC alumni trips.
www.zoominfo.com /people/werner_al_74071480.aspx   (269 words)

  
 HighBeam Research: Library Search: Results   (Site not responding. Last check: 2007-10-31)
Alfred Jensen: Dia Center for the Arts, New York.(Brief...
Alfred Caldwell, a student of Jens Jensen and a friend of Frank Lloyd Wright, designed the retreat that...
The Register-Guard (Eugene, OR); Nov 17, 2005; 2,492 Words Byline: The Register-Guard Alfred Jensen The funeral will be held Nov. 18 for Alfred Al Jensen of Eugene, who died Nov. 15 of congestive heart failure.
www.highbeam.com /library/search.asp?q=Alfred+Jensen&refid=kunstnet   (836 words)

  
 Werner Abraham Gottlob - Search Results - MSN Encarta
Werner Abraham Gottlob - Search Results - MSN Encarta
Werner, Abraham Gottlob (1750-1817), German geologist and mineralogist, who helped to establish geology and mineralogy as two distinct sciences...
Search for books about your topic, "Werner Abraham Gottlob"
encarta.msn.com /Werner_Abraham_Gottlob.html   (93 words)

  
 Alfred Werner - MSN Encarta
Werner, Alfred (1866-1919), French-born Swiss chemist, and Nobel laureate.
Werner's application of geometry to chemistry helped identify the...
Become a subscriber today and gain access to:
encarta.msn.com /encyclopedia_761583400/Werner_Alfred.html   (36 words)

  
 Find in a Library: Alfred Werner, founder of coordination chemistry
Find in a Library: Alfred Werner, founder of coordination chemistry
To find this item in a library, enter a postal code, state, province, or country in the field above.
WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
worldcatlibraries.org /wcpa/ow/71b8495ebd8753b8a19afeb4da09e526.html   (45 words)

  
 espace@Curtin - Alfred Werner revisited: Some subtleties of complex ion synthesis and isomerism
espace@Curtin - Alfred Werner revisited: Some subtleties of complex ion synthesis and isomerism
Alfred Werner revisited: Some subtleties of complex ion synthesis and isomerism
Ogden, Mark and Harrowfield, Jack M. and Skelton, Brian W. and White, Allan H. (2005) Alfred Werner revisited: Some subtleties of complex ion synthesis and isomerism, Comptes Rendus Chimie 8:121-128.
espace.lis.curtin.edu.au /archive/00000587   (241 words)

  
 Dufy (Library of Great Painters) by Alfred Werner, New, Used Books, Cheap Prices, ISBN 0810900831   (Site not responding. Last check: 2007-10-31)
Dufy (Library of Great Painters) by Alfred Werner, New, Used Books, Cheap Prices, ISBN 0810900831
Dufy (Library of Great Painters) (By Alfred Werner)
All such content is provided to you "as is." this content and your use of it are subject to change and/or removal at any time.
www.bookfinder4u.com /detail/0810900831.html   (245 words)

  
 Heinrich WERNER - John WERTMAN
Child: Andrew WERNER Birth: 21 JAN 1767, Frederick Twp., Philadelphia Co., PA Descendants of Heinrich WERNER
Child: George Franklin WERNER Birth: 12 AUG 1883, Tulpehocken Twp., Berks Co., PA Child: Eva E WERNER Birth: 20 APR 1887
Child: Paul Werner BROSSMAN Birth: 7 JAN 1899, Womelsdorf, Berks Co., PA Ancestors of Mary S WERNER
www.tulpehockenroots.org /meyer/p00000hr.htm   (2237 words)

  
 Old Thunderstick Software, LLC
Thunderstick Software, LLC provides 'boutique' programming and systems engineering services.
The team is led by our founder, Alfred Werner, some of whose former clients are included here.
We're proud to be a Unix house, working in IRIX, Solaris, and Linux.
www.thunderstick.com   (421 words)

  
 Genealogy Data
-------FLIEDNER, Karl Ernst Wilhelm Christian Alwin Theodor ------FLIEDNER, Alfred Werner
-------FLIEDNER, Alfred Werner ------FLIEDNER, Karl Ludwig Theodor
-------FLIEDNER, Alfred Werner ------FLIEDNER, Hildegard Annemarie (Anke) -------DÜTEMEYER, Margarete
worldroots.com /ged/max/dat127.htm   (255 words)

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