Schwefeldioxid als Ligand und Synthon. XII. Synthese und Reaktivität von Nickel(II)-Komplexen dreizähniger anionischer Liganden des Typs (C6H3{CH2NR1R2}2-2,6)− |
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Authors: | U Schimmelpfennig R Zimmering K D Schleinitz R Stßer E Wenschuh U Baumeister H Hartung |
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Institution: | U. Schimmelpfennig,R. Zimmering,K. D. Schleinitz,R. Stößer,E. Wenschuh,U. Baumeister,H. Hartung |
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Abstract: | 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. |
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Keywords: | Organonickel(II) complexes SO2 coordination IR photoacoustic spectroscopy X-ray crystal structure of [NiBr{C6H3(CH2NR1R2)2− 2 6}] |
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