New Iron-Mercury Clusters: [Hg7 {Fe(CO)4 }5 (StBu)3 Cl], [Hg14 Fe12 {Fe(CO)4 }6 S6 (StBu)8 Br18 ], and [Hg39 Fe8 {Fe(CO)4 }18 S8 (StBu)14 Br28 ].

Three new chalcogen-bridged mercury-iron clusters with 7, 14, and 39 mercury centers were obtained from the reaction of tBuSSiMe3 with [Fe(CO)4 (HgX)2 ] (X= Cl, Br). The compounds were isolated in the form of orange crystals that were characterized by X-ray crystallography. The picture on the right shows the structure of the heavy-atom skeleton of [Hg14 Fe12 {Fe(CO)4 }6 S6 (StBu)8 Br18 ] (Hg, Fe, Br, and S are black, diagonally striped, white, and horizontally striped, respectively).