STRUCTURAL AND MAGNETIC-PROPERTIES OF DIMERIC [NI2(EN)4CL2]CL2

The crystal structure of dimeric [Ni2(en)4Cl2]Cl2 has been determined at ambient temperatures. Crystal data: space group [FORMULA OMMIETD] for 1530 reflections. The complex consists of chlorine-bridged dimers with unsymmetrical Ni-Cl bridging. The Ni-Cl distances are 2.47 and 2.56 A, the Ni-Cl-Ni angle is 96.55°, and the coordination octahedron is distorted. The single-crystal magnetic susceptibilities have been determined between 1.5 and 25 K and confirm the earlier report of ferromagnetic intradimer exchange interaction. The parameters resulting are:[FORMULA OMMITED. © 1979, American Chemical Society. All rights reserved.