Arsagermene, a compound with an –As=Ge–(R1;R2) double bond
Résumé
The first compound featuring an As=Ge double bond, arsagermene Mes*As=Ge(SiMetBu2)2, was synthesized, isolated and fully characterized. Crystallographic studies revealed that arsagermene has a planar Ge=As bond of 2.2731(8) Å, which is notably shorter than the standard Ge–As single bond. The double bond character of arsagermene was further supported by computational data.