[MII(NCS)2(nia)2(OH2)]: Preparation, Crystal Structure and Thermal Properties (MII = Mn, Fe; nia = nicotinamide)

摘要

Two novel isostructural coordination compounds of manganese(II) ( 1 ) and iron(II) ( 2 ) with common formula [M II (NCS) 2 (nia) 2 (OH 2 ) 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.