ENCAPSULATION OF THE TRANSITION METALS CHROMIUM THROUGH COBALT IN ZIRCONIUM CLUSTER IODIDES.

Article abstract of DOI:10.1021/ja00213a025

The zirconium iodide phases discussed all possess clusters with a formal electron count of 18 or more. We detail our efforts concerning the synthesis, structural characterization, magnetic properties, and electronic structure of zirconium iodide cluster compounds featuring the enclosure of the transition metals Cr, Mn, Fe, and Co. It is found that the iron-zirconium bonding in the cluster is notably greater than that in Zr//3Fe. The phase CsZr//6I//1//4Mn is properly diamagnetic, while the magnetic susceptibility data for the 19-electron Zr//6I//1//2Mn are well described by a high-temperature mu //e//f//f of 1. 84 mu //B and an intracluster spin-orbit coupling that partially quenches the moment at lower temperatures.