[Bis(2,6-diiso­propyl­phen­yl) phosphato-κO]pentakis­(methanol-κO)manganese bis­(2,6-diiso­propyl­phen­yl) phosphate methanol tris­olvate

The title compound, [Mn(C(24)H(34)O(4)P)(CH(3)OH)(5)](C(24)H(34)O(4)P)·3CH(3)OH, was formed in the reaction between a hydrate of a manganese(II) salt [either Mn(NO(3))(2)(H(2)O)(6) or MnCl(2)(H(2)O)(4)] with a methanol solvate of lithium bis­(2,6-diiso­propyl­phen­yl) phosphate, {Li[OOP(O-2,6-(i)Pr(2)C(6)H(3))(2)]·(CH(4)O)(3)}·CH(4)O, in methanol. The structure has monoclinic (Cc) symmetry at 150 K. The complex consists of an [Mn{OOP(O-2,6-(i)Pr(2)C(6)H(3))(2)}(CH(3)OH)(5)](+) cation, an [OOP(O-2,6-(i)Pr(2)C(6)H(3))(2)](−) anion and three non-coordinating methanol mol­ecules. The anion demonstrates disorder of an isopropyl group [occupancy ratio is 0.57 (4):0.43 (4)]. The di­aryl­phosphate ligand in the cation exhibits a κ(1) O terminal coordination mode. The Mn atom is in a nearly unperturbed octa­hedral environment. The [Mn{OOP(O-2,6-(i)Pr(2)C(6)H(3))(2)}(CH(3)OH)(5)](+) cation exhibits one intra­molecular O—H⋯O bond, and is coordinated via two inter­molecular O—H⋯O hydrogen bonds to the [OOP(O-2,6-(i)Pr(2)C(6)H(3))(2)](−) anion. The cations, anions and non-coordinating methanol mol­ecules are linked into infinite chains along the c-axis direction via 0—H⋯O hydrogen bonding. The complex is of inter­est as a possible inhibitor for the thermal decomposition of polydi­methyl­siloxane. The crystal studied was refined as an inversion twin with a domain ratio of 0.47 (3):0.53 (3).