The first examples of 3-D metal–organometallic networks (MOMNs) bearing 1,1′-ferrocenyldicarboxylate ligands have been obtained. These MOMNs exhibit a diamondoid-like network topology with 3-fold interpenetration described with point symbols for a net with loops, {66}{6}2. Their electrochemical properties were evaluated by solution-state differential pulse voltammetry.