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There are three different Mn(II) complexes in the asymmetric unit of the title compound, [Mn(C(15)H(16)N(4))(H(2)O)(2)]Br(2)·2{[MnBr(C(15)H(16)N(4))(H(2)O)]Br}·[MnBr(2)(C(15)H(16)N(4))]. In the neutral complex, the Mn(2+) ion is six-coordinated in a distorted octa-hedral environment by four N atoms of the tetra-dentate ligand N,N'-bis-(2-pyridylmethyl-ene)propane-1,3-diamine (bppd) and two bromide ligands. In the two cationic complexes, the Mn(2+) ions are also six-coordinated in similar environments, but one Mn ion is coordinated by four N atoms of bppd, one Br atom and one O atom of a coordinating water mol-ecule, whereas the other Mn ion is coordinated by four N atoms of bppd and two O atoms of water ligands. The complexes with two coordinated Br atoms or two H(2)O ligands are disposed about a twofold axis through Mn and C atoms with the special positions (, y, 0) and (0, y, ), respectively. The compound displays inter-molecular O-H⋯Br hydrogen bonding. There are inter-molecular π-π inter-actions between adjacent pyridine rings, with centroid-centroid distances of 3.822 and 3.833 Å, and a C-H⋯O inter-action is also present.

acta crystallographica. section e

Diaqua[N,N′-bis(2-pyridylmethylene)propane-1,3-diamine]manganese(II) dibromide–aquabromido[N,N′-bis(2-pyridylmethylene)propane-1,3-diamine]manganese(II) bromide–dibromido[N,N′-bis(2-pyridylmethylene)propane-1,3-diamine]manganese(II) (1/2/1)