Research on the Influence of the Nature of the Ligand on the Stereochemistry Try of the Nickel (II) and Other 1st Row Transition Metal Complexes with Schiff Bases

摘要

The solid and liquid state steric configurations of several bis-(N-alkylsalicylaldimino)-nickel (II) complexes were examined spectrophotometrically and by magnetic and dielectric polarization measurements. It was found that the n-propyl derivatives are planar, the t-butyl derivatives pseudo-tetrahedral, and the secalkyl derivatives either planar or pseudo-tetrahedral. Thermochemical, electronic, and steric implications are discussed. R-N-salicylaldimine-cobalt(III) complexes were found to exist in the trans-octahedral configuration only.