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  • 1
    Electronic Resource
    Electronic Resource
    The Oxidation of Olefins with Palladium Chloride Catalysts (1962)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 1 (1962), S. 80-88 
    Details
    ISSN: 0570-0833
    Keywords: Oxidation ; Palladium ; Catalysis ; Alkenes ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The oxidation of olefins to carbonyl compounds with palladium compounds, especially the oxidation of ethylene to acetaldehyde, is at present carried out on a technical scale. The reaction takes place via a palladium-olefin complex, the formation of which is inhibited by halide ions. Hydrolysis to the carbonyl compound is inhibited by hydrogen ions. The knowledge gained by studying the reaction of olefins with pure solutions of palladium salts allows important conclusions to be drawn concerning the action of technical catalyst solutions containing copper and palladium chloride.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196200801
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    Paper (German National Licenses)
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    Reply to Shi: Geometry is not the sole source of spatial relations [Letters (Online Only)] (2011)
    National Academy of Sciences
    Details
    Publication Date: 2011-08-18
    Description: We largely agree that the “scientific foundation to determine spatial relationships is computational geometry” (1). GIScience adds this strength to understanding space. We concur that current spatial ontologies tend to explicate the spatiality of features; spatial relations are frequently undervalued. However, computational geometry is not the sole source of spatial relations.We do not ignore geometric relationships, but we mapped them onto how features interact in our paper (2). Our ontology had states containing prefectures—these prefectures encompassed political entities as well as spatial relationships between their coordinates. This ontology showed the assertion of Smith (3) that, for geospatial features, topology (connection...
    Keywords: Letters
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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