Poly[[diaqua(μ4-squarato-O,O′,O′′,O′′′)manganese(II)] 0.93-hydrate

Abstract

In the title compound, {[Mn(C4O4)(H2O)2]·0.93H2O}n, the Mn atoms are each coordinated by four O atoms of two pairs of symmetry-related squarate dianions and two O atoms of two symmetry-related water mol­ecules within slightly distorted octahedra. The water mol­ecules occupy general positions and the two crystallographically independent squarate dianions, as well as the Mn atom, are located in special positions. The squarate dianions and the water mol­ecules are connected via O—H⋯O hydrogen bonding. In the crystal structure, voids are found that are filled with additional, disordered, clathrate water mol­ecules.