M-II(NCS)(2)(nia)(2)(OH2)(2): Preparation, Crystal Structure and Thermal Properties (M-II = Mn, Fe; nia = nicotinamide)

摘要

Two novel isostructural coordination compounds of manganese (II) (1) and iron(II) (2) with common formulae M-II(NCS)(2) (nia)(2) (OH2)(2) have been prepared from water solution of appropriate metal salt, nicotinamide and KSCN. Their crystal structures were determined by means of X-ray diffraction on single crystals. The mononuclear title compounds crystallize in a triclinic P-1 space group with six monodentate octahedrally arranged ligands around the metal centre. The coordination molecules are self-assembled with an extended network of hydrogen bonds into a three-dimensional structure. Additionally, 1 and 2 were characterized with infrared spectroscopy, magnetic measurements and thermal analysis.