Synthesis, Crystal Structure and Properties of a New One-Dimensional 3d-4f Compound

A new heterometallic complex K2[{Eu(H2O)4}2{Fe^Ⅱ(bipy)(CN)4}4]·9H2O·CH3OH [bipy=2,2'-bipyridine] was synthesized. The compound has been characterized by X-ray structure analysis, elemental analyses, IR spectrum, TGA thermogram and magnetic susceptibility. The complex consists of novel one-dimensional ladder structure. The crystal belongs to monoclinic system with a space group P21/c, a=1.3946(4) nm, b=2.0450(6) nm, c=2.9722(8)nm, β=99.025(5)°, V=8.372(4) nm^3, Z=4, Dc=1.562 g·cm^-3.