Summary
Qualitative infrared and electronic spectroscopic data for a series of nickel(II) amine complexes suggest structures involving octahedral (transtetragonal) symmetry and associated with varying degrees of cation-anion interaction. N-methyl ligand substituents contribute significantly to ligand conformations, complex symmetry, and cation-anion steric interactions. From the electronic data, the parametersDq,B′,C,C/B′, β35, andZ* are determined for each complex and a spectrochemical and nephelauxetic series is proposed for the associated amine ligands.
Zusammenfassung
Die qualitative Auswertung von Daten aus Infrarot- und Elektronenspektroskopie von Nickel(II)-Amin-Komplexen erlaubte die Zuordnung einer oktaedrischen (trans-tetragonalen) Symmetrie mit verschieden abgestuften Kation-Anion-Wechselwirkungen. Substituenten am N-Methyl-Liganden tragen signifikant zur Ligandenkonformation, Komplexsymmetrie und Kation-Anion-Wechselwirkung bei. Aus den elektronenspektroskopischen Daten wurden die ParameterDq,B′,C,C/B′, β35 undZ* für jeden Komplex bestimmt und als Kriterium für eine Reihung der Aminliganden herangezogen.
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Roe, S.P., Hill, J.O. & Magee, R.J. An infrared and electronic spectroscopic study of a series of nickel(II) amine complexes. Monatsh Chem 122, 467–478 (1991). https://doi.org/10.1007/BF00809798
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DOI: https://doi.org/10.1007/BF00809798