STUDY OF TECHNETIUM CHEMISTRY Ⅱ.APPLICATION OF THE CONE PACKING MODEL TO TECHNETIUM CHEMISTRY

Bond angles in structures of the coordination pattern TcAB4 are calculated and agree well with those obtained by X-ray diffraction based on the assumption that the vector sum of the coordinating ligands in each structure approaches zero.Thus the usability of the cone packing model to Tc chemistry is confirmed. The utilization of the packing parameters in prediction and design of Tc complex is demonstrated.