CAJ | 학술논문

A new lanthanide complex [Sm(C2O4)(H2O)5]nCln·2nH2O has been obtained by hydrothermal synthetic method. The crystal belongs to monoclinic, space group P21/n, with a = 7.5438(6), b = 14.3201(11), c = 10.8608(9) (A), β = 94.565(4)° , V= 1169.55(16) (A)3, C2H14ClO11Sm, Mr= 399.93, Z = 4, Dc = 2.271 g/cm3, μ = 5.290 cm-1, F(000) = 772, the final R = 0.0271 and wR = 0.0632 for 1880 observed reflections with Ⅰ＞2σ(Ⅰ). X-ray crystal analysis reveals that each Sm(Ⅲ) atom is nine-coordinated by four oxygen atoms from two oxalate ligands and five coordinated water molecules in a distorted tricapped trigonal prism. The chain-like structure of lanthanide oxalate is reported for the first time. The fluorescent property and magnetic behavior of the title compound were investigated. The θ of -14.3(2)° and J of -0.26 cm-1 indicate antiferromagnetic interaction in the molecule.