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  • 1
    ISSN: 0044-2313
    Keywords: Organonickel(II) complexes ; SO2 coordination ; IR photoacoustic spectroscopy ; X-ray crystal structure of [NiBr{C6H3(CH2NR1R2)2-2,6}] ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sulfur Dioxide as Ligand and Synthon. XII. Synthesis and Reaction Behaviour of Nickel(II) Complexes with Terdendate Anionic Ligands of the Type (C6H3{CH2NR1R2}2-2,6)-Organonickel(II) complexes of the type [NiX{C6H3(CH2NR1R2)2-2,6}] (X = halide OH2+/CF3SO3-; R1=R2=Et 1; R1=R2=i—Pr 2; R1 = Me, R2 = Cy 3; (NR1R2) = piperidino 4; (NR1R2) = pyrrolidino 5) are described. 1H and 13C NMR and UV/Vis spectra were recorded, and the X-ray crystal structure of 1 a (X = Br) was determined. This complex crystallizes orthorhombically in the space group Pbca with a = 1 335.8(2) pm, b = 1 903.3(3) pm, c = 1 365.4(3) pm and Z = 8, and has an approximately square-planar geometry. 4 and 5 show a reversible binding of SO2 which has been detected by means of IR photoacoustic spectroscopy. The reactions of 1-5 with CS2 and PhNSO are discussed.
    Notes: Organonickel(II)-Komplexe des Typs [NiX{C6H3(CH2NR1R2)2-2,6}] (X = Halogen, OH2+/CF3SO3-; R1=R2=Et 1; R1=R2=i—Pr 2; R1 = Me, R2 = Cy 3; (NR1R2) = piperidino 4; (NR1R2) = pyrrolidino 5) werden beschrieben. Die Charakterisierung erfolgte mit Hilfe der 1H— und 13C-NMR- sowie der UV/Vis-Spektroskopie. Von 1 a (X = Br) wurde die Kristallstruktur bestimmt. Dieser Komplex kristallisiert orthorhombisch in der Raumgruppe Pbca mit a = 1 335,8(2) pm, b = 1 903,3(3) pm, c = 1 365,4(3) pm und Z = 8, er besitzt eine annähernd quadratisch-planare Geometrie. 4 und 5 vermögen SO2 reversibel zu fixieren, was durch die IR-Photoakustik-Spektroskopie nachweisbar ist. Die Reaktionen von 1-5 mit CS2 und PhNSO werden diskutiert.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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