The X-ray crystal structures of the salts [Pt(CNMe)4][Pd(mnt)2], [Pt(CNMe)4][Pd(mnt)2]2.2MeCN and [Pt(CNMe)4][Au(mnt)2]2.MeCN [mnt = 1,2-S2C2(CN)2] show a variety of stacking and layer motifs in the solid state; inter-complex interactions lead to low-dimensional molecular aggregates.