| Abstract: A new coordination compound Co(Ⅲ)(Hdmg)2(H2O)2Mn(Ⅱ)Cl3 was synthesized and its crystal structure was determined. The crystal data are as follows: crystal system, orthorhombic; space group, C2221(#20); a=1.18315(3) nm, b=1.28631(5) nm, c=1.14355(2) nm, V=1.74037(9) nm3, Z=4, Dc=1.857 g·cm-3, F(000)=980.00, μ(MoKα)=21.69 cm-1, R1=0.030, wR2=0.92. The coordination geometries around Co(Ⅲ) and Mn(Ⅱ) atoms are distorted octahedral and distorted trigonal bipyramidal, respectively. The Hdmg chelates Co(Ⅲ) and bridges to two Mn(Ⅱ) atoms to form a polyheteronuclear helical structure along the c axis. |
