Trisodium bis­{1-[iminio­(morpholino)meth­yl]guanidinium} bis­[hexa­hydrogen­hexa­molybdoaluminate(III)] chloride icosa­hydrate

In the title compound, Na(3)(C(6)H(15)N(5)O)(2)[Al(OH)(6)Mo(6)O(18)](2)Cl·20H(2)O, the [Al(OH)(6)Mo(6)O(18)](3−) polyoxo­anion has a B-type Anderson structure exhibiting approximate D (3d) symmetry. There are two types of sodium cations: the Na(+) cations of type I have a distorted octa­hedral coordination geometry formed by six O atoms and are statistically distributed over two positions with equal occupancies, while the coordination polyhedra of the two Na(+) cations of type II share one Cl anion located on an inversion center. The latter fragment, containing a Cl anion and two sodium cations, links two polyoxoanions into centrosymmetric blocks. The diprotonated 1-[imino­(morpholino)meth­yl]guanidinium cations and uncordinated water mol­ecules contribute to extensive N—H⋯O and O—H⋯O hydrogen bonding, resulting in the formation a three-dimensional supra­molecular structure.