SYNTHESIS AND STRUTURE OF THE FIRST INTERSTITIAL μ_7-S CLUSTER Co_7(μ_7-S)(μ_4-PSEt)(μ-SEt)_2(μ-CO)_2(CO)_(12)

摘要

The reaction of Co2（CO）8 with EtSPCl2 gives a new crystal like compound Co7（μ7-S）（μ4-PSEt）（μ-SEt）2（μ-CO）2（CO）12,whose structure has been determined by single crystal x-ray diffraction.This special com-pound reveals some new features in cluster chemistry1:The fragmentation of a ligand precursor EtSPCl2 yieldsthree kinds of fragments,μ7-S,μ4-PSEt and μ-SEt,which are ligands in the same cluster molecule.There is anew type of bridging S presented——A μ7-S atom is interspaced into seven Co core.