Δ‐Aqua‐S‐citrato(2–)­manganese(II)

The citrato(2−) ligand in aqua­citrato(2−)­manganese(II), [Mn(C6H6O7)(H2O)], chelates the Mn atom through the α-hydroxyl, the α-carboxyl and one β-carboxyl O atom, while the other β-carboxyl­ic acid group remains uncoordinated. Each O atom of the α-carboxyl groups is bonded to an adjacent Mn atom, leading to octahedral Mn and a helical chain. Neighboring chains are consolidated into a tightly held crystal structure by hydrogen bonds.