Abstract: The title complex was synthesized in an aqueous solution and its crystal structure was determined by X-ray diffraction. The crystal is monoclinic with space group P2₁. The cell parameters are: a=1.10390(10)nm, b=1.6493(2)nm, c=1.9986(3)nm, β=103.600(10)⁰, V=3.5367(8)nm³, Z=4, D_c=2.141g/cm³. The final R is 0.0311. The complex molecule is an infinite layer built from binuclear polymer. In each binuclear unit, two metal ions are connected by four bridging carboxyl groups from four glutamic acid molecules, two carboxyl groups of near the NH₂ are simple bridging coordination and the carboxyl groups far from NH₂ tridentate to the central ions. Each metal ion is also coordinated by four water molecules. So the coordination number of the central ion is nine, and forming a trigontetradecahedron arrangement.