A novel cage complex [CU6C](MeO)(2)(pz)(9)] (1) was synthesized via a chloride ion template reaction and structurally characterized. In 1, two trinuclear units, {Cu-3 (MeO)(pz)(3))(2+), are linked by three pyrazolate ligands, six copper(II) ions form a trigonal prism, and a chloride ion is located at the center of the cage. 1 shows rather strong anti ferromagnetic coupling between the copper(II) ions through the MeO- and pyrazolate ligands.