Ge14Br8(PEt3)(4): A Subhalide Cluster of Germanium

摘要

Heating a metastable solution of (GeBr)-Br-I to room temperature led to the first structurally characterized metalloid subhalide cluster Ge14Br8(PEt3)(4) (1). Furthermore 1 can be seen as the first isolated binary halide cluster on the way from (GeBr)-Br-I to elemental germanium, giving insight into the complex reaction mechanism of its disproportionation reaction. Quantum chemical calculations further indicate that a classical bonding situation is realized within 1 and that the last step of the formation of 1 might include the trapping of GeBr2 units.