Catena-Poly[[(4-Methyl­Benzoato-Κo)Manganese(Ii)]-Μ-Aqua-Bis­(Μ-4-Methyl­Benzoato-Κ2 O:O′)[(4-Methyl­Benzoato-Κo)Manganese(Ii)]-Bis­(Μ-N,N-Diethyl­Nicotinamide)-Κ2 N 3:O;O:N3]

Abstract

The asymmetric unit of the title complex, [Mn2(C8H7O2)4(C10H14N2O)2(H2O)]n, contains two crystallographically independent units. In each one, the MnII ions are bridged by two 4-methyl­benzoate (PMB) ligands and one water mol­ecule. In the crystal structure, each MnII ion is coordinated by three PMB ligands, one water mol­ecule and two symmetry-related N,N-diethyl­nicotinamide (DENA) ligands. Symmetry-related MnII ions are bridged by the N and O atoms of symmetry-related DENA ligands, forming polymeric chains parallel to [100]. The coord­ination environmnts for the MnII ions are slightly distorted octa­hedral. Intra­molecular O—H⋯O hydrogen bonds link bridging water mol­ecules to the carboxyl­ate O atoms of a neigh­boring polymeric chain. In the crystal structure, π–π contacts between benzene rings [centroid–centroid distance = 3.562 (1) Å] and weak C—H⋯π inter­actions are also observed.