Decacarbonyldimanganese(0) features a unique structure in which two manganese (Mn) atoms are bridged by ten carbon monoxide (CO) ligands. The manganese atoms are arranged in a butterfly-shaped structure, with five CO ligands binding to each Mn atom. The distinctive feature involves the Mn-Mn bond through the bridging CO ligands. The two manganese atoms are not directly bonded but are connected by a shared CO ligand, creating a bridging carbonyl group. This structure results in a dinuclear complex, and the bridging carbonyl ligand contributes to the overall stability and reactivity of decacarbonyldimanganese(0) in various chemical reactions.