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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 523 (1985), S. 153-160 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complex Formation of N-(Thiocarbamoyl) benzamidinesN-(Thiocarbamoyl)benzamidines 1 and N-(Thiocarbamoyl)-N′-phenyl-benzamidines 2 form in alcoholic solutions with Ni2+, Cu2+, Pd2+, Co3+, and Ag+ ions well crystallized chelates 1a —h and 2a—h, respectively, with N/S coordination.The X-ray photoelectron spectra evidence the NH group as ligator in the case of chelates of 1 and the increased donor capacity compared with the isosteric oxygen ligator atom bound to nickel. This is confirmed by d-1H-n.m.r. spectroscopy analyzing the value of ΔGc≠ for the rotational barrier for the Et2N group of 1a
    Notes: N-(Thiocarbamoyl)banzamidine 1 und N-(Thiocarbamoyl)-N′-phenyl-benzamidine 2 bilden mit Ni2+-, Pd2+-, Co3+- und Ag+-Ionen in alkoholischer Lösung kristalline Innerchelatkomplexe1a—h und 2a—h mit N/S-Koordination.Aus ESCA-Spektren wird im Falle der Chelate von 1 als Haftgruppe NH nachgewiesen und ihre höhere Donorfähigkeit im Vergleich mit dem isosterne Sauerstoffhaftatom gegenüber Nickel fest-gestellt. Dies wird durch d-1H-NMR-spektroskopisch bestimmte Werte von ΔGc≠ für die behinderte Rotation der Et2N-Gruppe an 1 a unterstützt.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 543 (1986), S. 186-191 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Heavy Metal Chelates of α-Cyano-β-amino-dithioacrylatesThe inner metal chelates of PdII, NiII, CoIII, and AgI with α-cyano-β-amino-dithioacrylates have been prepared. The coordination of the dithioester group and the amine nitrogen (S/N-coordination) has been proved by the chemical shift of the S2p and N1s electron binding energies in the ESCA spectra.
    Notes: Es wurden Innerchelatmetallkomplexe des PdII, NiII, CuII, CoIII und AgI mit α-Cyano-β-amino-dithioacrylsäureestern dargestellt. Die Koordination der Dithiocarbonester-gruppierung und des Aminstickstoffs (S/N-Koordination) wird durch die chemische Verschiebung der S2p- und N1s-Elektronenbindungsenergien in den ESCA-Spektren bewiesen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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