Bis{μ-2,2′-[1,1′-(ethane-1,2-diyldinitrilo)diethyl­idyne]diphenolato}bis­[(benzoato-κO)manganese(III)] dihydrate

The title compound, [Mn2(C18H18N2O2)2(C7H5O2)2]·2H2O, was synthesized by the reaction between manganese(II) benzoate and the Schiff base generated in situ by the condensation of ethane-1,2-diamine and o-hydroxy­aceto­phen­one. The Jahn–Teller-distorted manganese(III) ions of the centrosymmetric dimer are connected through phen­oxy bridges. Hydrogen-bonding inter­actions between the uncoord­in­ated C=O of the benzoate and uncoordinated water mol­ecules link the dimers into a chain running parallel to the c axis

Bis{l-2,20-[1,10-(ethane-1,2-diyldinitrilo)- diethylidyne]diphenolato}bis[(benzoatojO)manganese(III)] dihydrate

The title compound, [Mn2(C18H18N2O2)2Cl2], was synthesized by the reaction between manganese(II) o-chloro­benzoate and the Schiff base generated in situ by the condensation of ethane-1,2-diamine and o-hydroxy­acetophenone. The centrosymmetric dimer contains two Jahn-Teller-distorted mangan­ese(III) ions, each in an octa­hedral geometry, connected through two phen­oxy bridges from two ligands

Aqua­{6,6′-dimeth­oxy-2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolato}(4-hydroxy­benzoato)manganese(III)

The title compound, [Mn(C18H18N2O4)(C7H5O3)(H2O)], was synthesized by a template reaction of ethane-1,2-diamine and 3-methoxy­salicylaldehyde in presence of manganese(II) 4-hydroxy­benzoate. The Jahn–Teller-distorted manganese(III) centre has an octa­hedral geometry. Extensive O—H⋯O hydrogen-bonding inter­actions generate a two-dimensional sheet structure parallel to (103)

H-bonded Chains and Networks: A Recurring Feature in the Solid State Structures of Manganese (III) Carboxylate Schiff Base Complexes

Two new manganese(III) Schiff base complexes,  [Mn(salen)(m-NO2-C6H4CO2)(H2O)] (1) and  [Mn(msalen) (p-OH-C6H4CO2)(H2O)] (2), where H2salen = N,N'-bis(salicylidene)-1,2-diaminoethane, H2msalen = N,N'-bis (3-methoxysalicylidene)-1,2-diaminoethane were synthesized from the manganese (II) carboxylates.  Single crystal X-ray diffraction studies show that the Jahn-Teller distorted octahedral complexes are stabilized by              H-bonded chains and networks in the solid state. 

Aqua­{2,2-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolato}(3-nitro­benzoato)manganese(III)

The title compound, [Mn(C16H14N2O2)(C7H4NO4)(H2O)], is a Jahn–Teller-distorted manganese(III) monomer with an octa­hedral geometry. The tetra­dentate Schiff base accommodates the MnIII ion at the centre of a nearly planar square. The axial positions are occupied by a monodentate carboxyl­ate group and a water mol­ecule. Adjacent monomers inter­act through hydrogen bonding between the noncoordinated C=O group of the carboxyl­ate and the coordinated water mol­ecule to produce chains extending parallel to the b axis

Bis{μ-2,2′-[1,1′-(ethane-1,2-diyldinitrilo)diethyl­idyne]diphenolato-κ5 O,N,N′,O′:O}bis­[chloridomanganese(III)]

The title compound, [Mn2(C18H18N2O2)2Cl2], was synthesized by the reaction between manganese(II) o-chloro­benzoate and the Schiff base generated in situ by the condensation of ethane-1,2-diamine and o-hydroxy­acetophenone. The centrosymmetric dimer contains two Jahn–Teller-distorted mangan­ese(III) ions, each in an octa­hedral geometry, connected through two phen­oxy bridges from two ligands