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  1. Article: Reaktiviät von Metall–Metall-Mehrfachbindungen, II [1] Nukleophile Addition von Methylensulfiden an [CpMo(CO)2]2 unter Bildung von Cp(CO)2Mo(μ-S(CH2)n)Mo(CO)2Cp-Spezies; Röntgenstrukturanalyse von Cp(CO)2Mo(μ-S(CH2)6)Mo(CO)2Cp / Reactivity of Metal-Metal Multiple Bonds, II [1] Nucleophilic Addition of Methylenesulfides to [CpMo(CO)2]2 with Formation of Cp(CO)2Mo(μ-S(CH2)n) Mo(CO)2Cp Spezies; X-Ray Structure Analysis of Cp(CO)2Mo(μ-S(CH2)6)Mo(CO)2Cp

    Blechschmitt, Klaus / Ernst Guggolz / Manfred L. Ziegler

    Zeitschrift für Naturforschung. 2014 June 2, v. 40, no. 1

    2014  

    Abstract: The triply Mo-Mo bonded molecule [Cp(CO)₂Mo]₂ was reacted with the cyclic sulfides S(CH₂)ₙ (n = 4-6). The species Cp(CO)₂Mo(μ-S(CH₂)ₙ)Mo(CO)₂Cp were isolated and characterized by their analytical and spectroscopic data. X-Ray structure analysis of the ... ...

    Abstract The triply Mo-Mo bonded molecule [Cp(CO)₂Mo]₂ was reacted with the cyclic sulfides S(CH₂)ₙ (n = 4-6). The species Cp(CO)₂Mo(μ-S(CH₂)ₙ)Mo(CO)₂Cp were isolated and characterized by their analytical and spectroscopic data. X-Ray structure analysis of the compound Cp(CO)₂Mo(μ-S(CH₂)₆)Mo(CO)₂Cp proved the cyclic sulfide to act as a bridging ligand
    Keywords Lewis bases ; X-radiation ; chemical bonding ; ligands ; molybdenum ; spectral analysis ; sulfides
    Language English
    Dates of publication 2014-0602
    Size p. 85-89.
    Publishing place Verlag der Zeitschrift für Naturforschung
    Document type Article
    ZDB-ID 124635-5
    ISSN 0340-5087 ; 0044-3174 ; 0932-0776 ; 0341-0447 ; 0341-0420
    ISSN 0340-5087 ; 0044-3174 ; 0932-0776 ; 0341-0447 ; 0341-0420
    DOI 10.1515/znb-1985-0117
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Darstellung und Charakterisierung von Spezies der Zusammensetzung η5-C5H5Cr(NO)2SR (R = C6H5, C6F5, t–C4H9) und [η5-C5H5CrNO]2(ER)2 (E = O, S, Se, Te, R = Alkyl, Aryl); Röntgenstrukturanalysen von [η5-C5H5(NO)Cr(μ-SeC6H5)2Cr(NO)-η5-C5H5] und [η5-C5H5(NO)Cr(μ-Se-n-C4H9)(μ-OH)Cr(NO)-η5-C5H5] / Synthesis and Characterization of Species of Composition η5-C5H5Cr(NO)2SR (R = C6H5, C6F5, t-C4H9) and [η5-C5H5CrNO]2(ER)2 (E = O, S, Se, Te, R = Alkyl, Aryl); Röntgenstrukturanalysen von [η5-C5H5(NO)Cr(μ-SeC6H5)2Cr(NO)-η5-C5H5] and [η5-C5H5(NO)Cr(μ-Se-n-C4H9)(μ-OH)Cr(NO)-η5-C5H5]

    Rott, Johannes / Ernst Guggolz / Albert Rettenmeier / Manfred L. Ziegler

    Zeitschrift für Naturforschung. 2014 June 2, v. 37, no. 1

    2014  

    Abstract: The title compounds have been synthesized and characterized by elemental analysis, IR and ¹H NMR methods and mass spectra. The crystal and molecular structures of the binuclear complexes [η-C₅H₅(NO)Cr(μ-SeC₆H₅)₂Cr(NO)-η⁵-C₅H₅] and [η⁵-C₅H₅(NO)Crμ-Se-n-C₄ ... ...

    Abstract The title compounds have been synthesized and characterized by elemental analysis, IR and ¹H NMR methods and mass spectra. The crystal and molecular structures of the binuclear complexes [η-C₅H₅(NO)Cr(μ-SeC₆H₅)₂Cr(NO)-η⁵-C₅H₅] and [η⁵-C₅H₅(NO)Crμ-Se-n-C₄H₉)(μ-OH)Cr(NO)-μ⁵-C₅H₅] have been determined by X-ray structure analysis. The latter is shown to have a four-membered ring consisting of two chromium atoms, one selenium, and one oxygen atom.
    Keywords X-radiation ; chromium ; nitric oxide ; nuclear magnetic resonance spectroscopy ; oxygen ; selenium ; sulfur
    Language English
    Dates of publication 2014-0602
    Size p. 13-23.
    Publishing place Verlag der Zeitschrift für Naturforschung
    Document type Article
    ZDB-ID 124635-5
    ISSN 0340-5087 ; 0044-3174 ; 0932-0776 ; 0341-0447 ; 0341-0420
    ISSN 0340-5087 ; 0044-3174 ; 0932-0776 ; 0341-0447 ; 0341-0420
    DOI 10.1515/znb-1982-0104
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  3. Article: Über die Reaktivität von [(CH3)2N]6W2 (W≡W) gegenüber CS2/S8 und CS2/Se8. Röntgenstrukturanalyse von [(CH3)2NCS2]2W(S)(S2) / Reactivity of [(CH3)2N]6W2 (W≡W) Towards CS2/S8 and CS2/Se8. X-Ray Structure Analysis of [(CH3)2NCS2]2W(S)(S2)

    Ziegler, Manfred L / Klaus Blechschmitt / Harald Bock / Ernst Guggolz / Richard P. Korswagen

    Zeitschrift für Naturforschung. 2014 June 2, v. 43, no. 5

    2014  

    Abstract: In this paper we report two improved preparation methods for [(CH₃)₂N]₆W₂ (W≡W) (1), one starting from WCl₄ (yield 51%), and a second one starting from W₂C₁₆(THF)₄ (ca. 60% yield). We have studied the reactions of 1 with different nucleophiles, among ... ...

    Abstract In this paper we report two improved preparation methods for [(CH₃)₂N]₆W₂ (W≡W) (1), one starting from WCl₄ (yield 51%), and a second one starting from W₂C₁₆(THF)₄ (ca. 60% yield). We have studied the reactions of 1 with different nucleophiles, among them triphenylalkylidenphosphoranes (like Ph₃P=CH₂ and Ph₃P=CHPh·LiCl; Ph = phenyl), sulfur and CS₂ .1 reacts with S₈ and CS₂ in hexane to yield the two new compounds (Me₂NCS₂)₂WS(S₂) (4) and W(CS₂H)(Me₂NCS₂)₂ (5), both containing dithiocarbamato ligands formed by insertion of CS₂ into the W-N bond. The two mononuclear compounds were characterized spectroscopically, in the case of 4 an X-ray diffraction structure analysis was performed. The reaction of 1 with Se and CS₂ , leads to the compounds 4, (Me₂NCS₂)₂W₂S₄ (6) and [(Me₂N)₂C]CS₂ (7), which were also characterized spectroscopically. No Se-containing compounds could be isolated.4 crystallizes monoclinically, C⁵₂ₕ-P2₁/n, with a = 648.6(3), b = 1346.7(6) and c = 1745.9(7) pm, β = 91.85(3)°, V = 1524x10⁶ pm³ , Z = 4. The structure of the seven-coordinate tungsten compound is discussed and compared to complexes with similar ligands and geometry.
    Keywords Lewis bases ; X-radiation ; X-ray diffraction ; carbon disulfide ; chemical bonding ; geometry ; hexane ; ligands ; lithium chloride ; sulfur ; tungsten
    Language English
    Dates of publication 2014-0602
    Size p. 590-598.
    Publishing place Verlag der Zeitschrift für Naturforschung
    Document type Article
    ZDB-ID 124635-5
    ISSN 0340-5087 ; 0044-3174 ; 0932-0776 ; 0341-0447 ; 0341-0420
    ISSN 0340-5087 ; 0044-3174 ; 0932-0776 ; 0341-0447 ; 0341-0420
    DOI 10.1515/znb-1988-0517
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 4' 47/11 b: Show issues
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