201992-21-4Relevant academic research and scientific papers
Synthesis, characterization, and crystal structure of three cobalt(II) complexes with Schiff bases derived from rimantadine
Xu, Chong,Liu, Xiao-Chen,Jin, Xu-Dong,Yang, Qi,Han, Guang-Chao,Gang, Yu-Chen,Hu, Hai-Hong
, p. 352 - 362 (2014)
By condensation of rimantadine and substituted salicylaldehyde, three new Schiff bases, HL1, HL2 and HL3, were synthesized. Then, a mixture of one of the new ligands and cobalt(II) chloride hexahydrate in ethanol led to 1, 2, and 3, respectively. These complexes were characterized by melting point, elemental analysis, infrared spectra, molar conductance, thermal analysis, and single-crystal X-ray diffraction analysis. X-ray diffraction analysis reveals that 1 crystallizes in the orthorhombic system, Pbcn space group; each asymmetric unit consists of one cobalt(II) ion, two deprotonated ligands, and one lattice water. The central cobalt is four coordinate via two nitrogens and two oxygens from the corresponding Schiff base ligand, forming a distorted tetrahedral geometry. Complexes 2 and 3 crystallize in the monoclinic system, P21/c space group; each asymmetric unit consists of one cobalt(II), two corresponding deprotonated ligands, one lattice water, and one methanol. The central cobalt is also four-coordinate via two nitrogens and two oxygens from the corresponding Schiff base ligand, forming a distorted tetrahedral geometry. 2014
