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  • 1
    Electronic Resource
    Electronic Resource
    Ceramic powder processing in san diego (1990)
    Weinheim : Wiley-Blackwell
    Advanced Materials 2 (1990), S. 499-501 
    Details
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19900021014
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Darstellung, Eigenschaften und Struktur von Di-μ-halogeno- bis[dicarbonyl(tri-tert-butylphosphan)ruthenium(I)](Ru—Ru) (1980)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 1385-1393 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Properties, and Structure of Di-μ-halogeno-bis[dicarbonyl(tri-tert- butylphosphane)-ruthenium(I)](Ru—Ru)Ruthenium trichloride trihydrate (1) reacts with carbon monoxide and tri-tert-butylphosphane (2) in 2-methoxyethanol to form di-μ-chloro-bis[dicarbonyl(tri-tert- butylphosphane)ruthenium(I)]-(Ru—Ru) (3). The corresponding bromo- (5), and iodo derivatives (6) are formed either from 3 by halogen exchange using LiBr or Nal or by the reaction of di-μ-halogeno-bis[tricarbonylhalogeno-ruthenium(II)] with 2. The crystal structure of 5, has been determined from single crystal X-ray data. The compound crystallizes with 4 molecules in a unit cell of symmetry P21/a in the monoclinic system.
    Notes: Rutheniumtrichlorid-trihydrat (I) reagiert mit Kohlenmonoxid und Tri-tert-butylphosphan (2) in 2-Methoxyethanol unter Bildung von Di-μ-chloro-bis[dicarbonyl(tri-tert- butylphosphan)ruthenium(I)](Ru—Ru) (3). Die entsprechenden Brom- (5) und Iod-Derivate (6) entstehen entweder aus 3 durch Halogenaustausch mittels LiBr oder NaI oder durch Umsetzung von Di-μ-halogeno-bis[tricarbonylhalogeno-ruthenium(II)] mit 2. Die Kristallstruktur von 5 wurde bestimmt. Die Verbindung kristallisiert mit 4 Molekülen in der monoklinen Elementarzelle der Symmetrie P21/a.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19801130417
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Di-μ-(carboxylato)-bis[dicarbonyl(tri-tert-butylphosphan)-ruthenium(I)](Ru - Ru) (1980)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 989-994 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Di-μ-(carboxylato)-bis[dicarbonyl(tri-tert-butylphosphane)ruthenium(I)](Ru - Ru)Ru3(CO)12 reacts with tri-tert-butylphosphane and formic acid, acetic acid, propionic acid, butyric acid, or stearic acid to form di-μ-(carboxylato)-bis[dicarbonyl(tri-tert-butylphosphane)-ruthenium(I)](Ru - Ru). The IR and NMR spectroscopic data are discussed.
    Notes: Ru3(CO)12 reagiert mit Tri-tert-butylphosphan und Ameisensäure. Essigsäure, Propionsäure, Buttersäure oder Stearinsäure unter Bildung von Di-μ-(carboxylato)-bis[dicarbonyl(tri-tert-butylphosphan)ruthenium(I)](Ru - Ru). Die IR- und NMR-spektroskopischen Daten der neuen Komplexe werden diskutiert.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19801130318
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Multiphoton and electron impact ionization of azirines. Part II: 2,3-diphenyl-1-azirine at 248 nm and 193 nm (1992)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 27 (1992), S. 1105-1113 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Multiphoton ionization of 2,3-diphenyl-1-azirine Is reported for nanosecond laser excitation at 248 and 193 nm and compared with electron impact ionization. The dependence of the ion intensity on the laser intensity shows that the formation of the parent ion and some of the more prominent fragment ions require the absorption of two photons per molecule. Other fragment ions are produced after the absorption of three photons. The results of the absorbed photon energy are corroborated by ionization and appearance energies obtained on calibrated electron impact ionization. Pure metastable ion spectra were obtained both by the defocusing method and by direct analysis of daughter ions produced by electron impact ionization and also by multiphoton ionization. The multiphoton absorption is shown to proceed via two different excitation pathways. A complete ionic decay scheme is given.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210271021
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Multiphoton excitation of ferrocene and vanadocene at 351 nm in comparison with 248 and 193 nm. Wavelength dependent competition between ionization and dissociation (1993)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 28 (1993), S. 405-411 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Multiphoton ionization of ferrocene and vanadocene upon nanosecond laser excitation at 351 nm is reported in comparison with results at 248 and 193 nm. A similar behaviour was found for both compounds at each wavelength. The excitation and fragmentation mechanism was elucidated by the determination of the number of absorbed photons for the ion formation and the analysis of the metastable ion decay. On biphotonic excitation at 248 nm extensive fragmentation of the neutral parent molecule to metal atoms is observed, followed by the ionization of these metal atoms after absorption of two further photons. In contrast, at 193 nm the molecular ion is formed after absorption of two photons and dominates the fragmentation pattern up to moderate laser intensities. At high laser intensities the metal ion, formed after resonant absorption of three photons, becomes prominent. At 351 nm the exclusive formation of molecular ions is observed only near the threshold of the laser intensity for ion detection. Metal ion formation prevails at higher laser intensities involving the absorption of five photons. Most likely this absorption mechanism is resonant.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210280424
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