Crystal Structure and Magnetic Property of Heteronuclear Copper-Lanthanum Carboxylate Complex

The title complex, [CuLaL₅ (phen) (C₂H₅OH)]₂ (where L = α-methylacrylato; phen = 1, 10-phenanthroline), has been prepared and its structure has been determined by X-ray diffraction analysis. The complex crystallizes in triclinic system with space group P 1. Crystal data: a = 1.2725 (3) nm, b = 1.4421 (4) nm, c = 1.2109 (2) nm, α = 109.48 (2)°, β = 115.26 (2)°, γ = 66.42 (2)°. The complex is a discrete tetranuclear CuLaLaCu molecule bridged by α-methylacrylato groups. Magnetic property of the complex was also measured and discussed.