Hydrothermal synthesis and characterization of a new two-dimensional lanthanum(III)-cobalt(II) heterometallic coordination polymer La(Hida)Co(ida)₂·0.5H₂O

A new lanthanum(III)-cobalt(II) heterometallic polymeric complex of La(Hida)Co(ida)₂·0.5H₂O(1, ida = iminodiacetate) was hydrothermally synthesized and structurally characterized by the elemental analyses, IR spectrum and the single-crystal X-ray diffraction. The structure of compound 1 consists of one-dimensional lanthanum-cobalt heterometallic chain, which was linked via linear tetradentate ida ligands to form the two-dimensional framework. The crystal data for compound 1: monoclinic system, space group C2/c, a = 0.97078(19) nm, b = 2.412 8(5) nm, c = 0.85964(17) nm, β = 114.91(3)°, V = 1.8263(6) nm³, Z = 4 and R = 0.0126. Interestingly, the title compound contains ten-coordinate lanthanide (III) ions, which makes it unique as the heteronuclear lanthanide iminoacetate.