The reaction of a digermyne Ar'GeGeAr' (Ar' = C6H3-2,6-(C6H3-2,6-Pr-2(i))(2)) with AgSbF6 at -40 degrees C forms the complex (AgAr'GeGeAr')+SbF6-, which provides the first example of a heavier group 14 element alkyne analogue behaving as a pi donor to a transition metal. The cation (AgAr'GeGeAr')(+) is best described as a hybrid of a pi-complex and a sigma-metallacyclopropene structure.