Synthesis, Crystal Structures and Physicochemical Properties of Poly[bis(N,N-Dimethylformamide)tetra(thiocyanato)metal(II) Mercury(II)] (Metal = Cadmium and Manganese)

AbstractTwo novel single crystals, poly[bis(N,N-dimethylformamide)tetra(thiocyanato)metal(II)mercury(II)] (metal = cadmium and manganese, abbreviated as DTCM and DTMM, respectively) were prepared. The characterizations of DTCM and DTMM were performed by elemental analyses, infrared, X-ray single crystal diffraction. The two title complexes crystallized in the same monoclinic crystallographic system and P2 1 /n space group with unit cell parameters: a = 9.2515(2) Å, b = 14.1670(3) Å, c = 16.5898(3) Å, β = 93.0320(10)°, z = 4, D x = 2.115 g/cm 3 for DTCM, and a = 9.24580(10) Å, b = 14.1110(2) Å, c = 16.4937(2) Å, β = 92.9120(10)°, z = 4, D x = 1.960 g/cm 3 for DTMM, respectively. The two structures are isostructural. The thermal decomposition processes of the two crystals were investigated by means of thermogravimetric analysis and differential thermal analysis measurements in air.Graphical AbstractThe synthesis, single crystal structures and physicochemical properties of two novel crystals, poly[bis(N,N-dimethylformamide)tetra(thiocyanato)metal(II)mercury(II)] (metal = cadmium and manganese, abbreviated as DTCM and DTMM, respectively) are reported.[IMAGE]