Key points are not available for this paper at this time.
Multiple Ge−Ge bonds: The title compound, which has a trans-bent structure (see structure; Ge-Ge-C=128.67(8)°) and a short Ge−Ge bond (2.2850(5) Å), is the first stable digermanium analogue of an alkyne.
Stender et al. (Fri,) studied this question.