Placing equivalent redox-active groups as end-caps in molecular arrays is often used to evaluate whether intramolecular electronic communication occurs through organic [1] or metalcontaining fragments. [2][3][4][5][6][7][8][9] To this end, ferrocenyl (Fc = [(h-C 5 H 5 )Fe(h-C 5 H 4 )]) pendant groups (often as ferrocenylethynyl termini), [3][4][5] are commonly used because of their chemical robustness, synthetic versatility, and reversible redox properties. They have been attached to mono- [2, 3, 6,10] or dinuclear [4, 7] organometallic and coordination compounds. However examples of metal clusters capped by equivalent ferrocenyl groups are rare. To our knowledge, structurally characterized examples are limited [8a] to the following compounds: [Mo 6 Cl 8 (O 2 CÀFc) 6 ] 2À , which contains an octahedral core of Mo II centers {Mo 6 Cl 8 } 4+ , [9a] [Ru 3 (CO) 7 (m 2 -S-Fc) 4 ], [9b] [Cu 3 (dppm) 3 (m 3 -h 1 -C CÀFc) 2 ] + , (dppm = methylenebis-[(diphenyl)phosphine]) with two terminal (Fc-C C) À groups bridging the opposite sides of a triangular Cu I 3 core in an m 3 -h 1 fashion, [5a] [M 6 (m-dppm) 2 (m 3 -h 1 -C CÀFc) 4 (L) 2 ]X 2 (M = Ag, L = CH 3 OH, X = BF 4 ; M = Cu, L = none, X = ClO 4 ) [5b] and [Pt 2 Au(dppm) 2 X(h 1 -C CÀFc) 2 ]. [4a] Electron transfer from, to, or across the cluster-containing spacer, triggered by external stimuli, would make these units promising candidates for the preparation of connector elements in nanoscale switchable molecular devices. [11] Indeed, the utilization of carbonyl