Synthesis, crystal structures, spectral, magnetic and thermal properties of 1-D polymeric dicyanamido-metal(II) complexes

Three metal(II) dicyanamide (dca) complexes have been synthesized in presence of 2,6-lutidine-N-oxide (2,6-lut-NO): catena-{[M(mu(1,5)-dca)(2)(H2O)(2)](2,6-lut-NO)} (M = Mn(II) (1), Co(II) (2), Ni(II) (3)), and characterized by IR, UV-Vis spectroscopy, single crystal and powder X-ray diffraction. The isostructural polymeric 1-D complexes feature double mu(1,5)-bridging dicyanamide ligands and terminal aqua ligands in trans-conformation around the distorted M(II) octahedra, whereas the 2,6-lutNO molecules are not ligated to the metal centers. The magnetic and thermal properties of the title complexes are reported. (C) 2021 Elsevier Ltd. All rights reserved.

Automated summary

Three metal(II) dicyanamide complexes were synthesized in the presence of 2,6-lutidine-N-oxide (2,6-lut-NO) and characterized. They feature similar structures with double mu(1,5)-bridging dicyanamide ligands and terminal aqua ligands, but differ in the coordination of 2,6-lutNO molecules to the metal centers.