A new lanthanum(III) complex containing acetyl­acetone and 1H-imidazole

In the title complex, di­aqua­(1H-imidazole-κN (3))(nitrato-κ(2) O,O′)bis­(4-oxo­pent-2-en-2-olato-κ(2) O,O′)lanthanum(III), [La(C(5)H(7)O(2))(2)(NO(3))(C(3)H(4)N(2))(H(2)O)(2)], the La atom is coordinated by eight O atoms of two acetyl­acetonate (acac) anions acting as bidentate ligands, two water mol­ecule as monodentate ligands, one nitrate anions as a bidentate ligand and one N atom of an imidazolate (ImH) molecule as a monodentate ligand. Thus, the coordination number of the La atom is nine in a monocapped square anti­prismatic polyhedron. There are three types of inter­molecular hydrogen bonds between ligands, the first involving nitrate–water O⋯H—O inter­actions running along the [001] direction, the second involving acac–water O⋯H—O inter­actions along the [010] direction and the third involving an Im–nitrate N—H⋯O inter­action along the [100] direction (five inter­actions of this type). Thus, an overall one-dimensional network structure is generated. The mol­ecular plane of an ImH molecule is almost parallel to that of a nitrate ligand, making an angle of only 6.04 (12)°. Inter­estingly, the ImH plane is nearly perpendicular to the planes of two neighbouring acac ligands.