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Solution properties and solvatochromism of bis(N-2-pyridyl-salicylaldiminato)cobalt(II)

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Abstract

The bis(N-2-pyridyl-salicylaldiminato)cobalt(II) complex ([Co(sap)2]), a reddish-pink crystalline compound has been characterized by elemental analysis, molar conductivity, cyclic voltammetry, and Vis–NIR spectroscopy. Combination of all techniques indicates a tetrahedral geometry for the complex in solid state and in the solvents used. Electronic spectroscopy was used to determine the ligand–field parameters as well as chromaticity coordinates; for discrimination of color changes CIE and CIELAB color spaces have been applied.

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Correspondence to Krzysztof Kurzak.

Additional information

Dedicated to Professor Adam Bartecki on the occasion of his 90th birthday.

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Kurzak, K., Kuźniarska-Biernacka, I. & Freire, C. Solution properties and solvatochromism of bis(N-2-pyridyl-salicylaldiminato)cobalt(II). Struct Chem 21, 377–383 (2010). https://doi.org/10.1007/s11224-009-9536-7

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Keywords

  • Schiff base
  • Cobalt(II) complexes
  • Ligand–field parameters
  • Electronic spectra
  • Solvatochromism