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Isomerism of nickel(II) complexes. VIII. Study of isomerism of isothiocyanatonickel(II) complexes with some alkylamines

E. Jóna, B. Vojtas, T. Šramko, and J. Gažo

Department of Inorganic Chemistry, Slovak Technical University, 880 37 Bratislava


Abstract: Complexes of the type Ni(NCS)2Bn (B is methylamine and ethylamine; n = 2 and 4) and two isomers of complex Ni(NCS)2(diethylamine)2 were prepared. From the spectral and magnetic data it follows that the red isomer has a square-planar configuration with end-bonded NCS groups, while the green isomer is pseudooctahedral polymer complex with both terminal and bridge-bonded (trifunctional) NCS groups. Complexes Ni(NCS)2Bn have a pseudooctahedral configuration with end-bonded (n =4) or bridge-bonded (n = 2) NCS groups. It was found that the formation of the above-mentioned isomers is connected (besides the appropriate bonding properties of ligands) also with the steric effect of diethylamine in a similar way as in complexes with 2-substituted derivatives of pyridine.

Full paper in Portable Document Format: 301a100.pdf


Chemical Papers 30 (1) 100–106 (1976)

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