mong several network structures constructed to date, two-dimensional (2D) honeycomb spin−lattices have attractedattention because of the unique electronic structures andphysical properties afforded by their structural topology.Recent studies of inorganic materials with 2D honeycombspin−lattices have revealed outstanding physical propertieswith possible technological applications, including thequantum liquid state of H 3 LiIr 2 O 6 , 19 superconductivity ofmagic-angle graphene, 20 and 2D magnetism in single-layerCrI 3 . 21 Open-shell CPs with spins in honeycomb topologieshave also been studied for their metallic conductivity, 15switchable electronic−magnetic properties, 12 and solvent-induced “shrinking−breathing” processes, 1