The title manganese(II) substituted gallophosphate, K(0.5)Rb(0.5)[Ga(2)Mn(PO(4))(3)(H(2)O)(2)], features a three-dimensional network built of PO(4) tetra-hedra, GaO(5) trigonal bipyramids and MnO(6) octa-hedra. The Rb(I) and K(I) ions, which are disordered with respect to each other in a 1:1 ratio, occupy sites within the channels of the framework. The Rb(I)/K(I) and Mn(II) atoms occupy positio...

In the title compound, [Mn(C(20)H(14)N(2)O(2))(N(3))(H(2)O)]·0.5H(2)O, the Mn(III) ion is chelated by the N,N',O,O'-tetra-dentate Schiff base ligand and further coordinated by one azide ion and one water mol-ecule in trans positions, resulting in a distorted fac-MnN(3)O(3) octa-hedral arrangement. The O atom of the uncoordinated water mol-ecule lies on a crystallographic twofold axis. In the cr...

The title compound, [Mn(C(2)H(5)O)(2)(C(44)H(28)N(4))]PF(6), was synthesized from manganese(III) 2,4-penta-nedionate and 5,10,15,20-tetra-phenyl-calix[4]pyrrole by a hydro-thermal reaction. The Mn(III) atom is located on an inversion centre and the asymmetric unit comprises one half-formula unit. The Mn(III) ion is hexa-coordinated by four N atoms from one 5,10,15,20-tetra-phenyl-calix[4]pyrrol...

The Mn(III) atom in the title complex, [Mn(C(11)H(10)N(3)O)(2)]NO(3), is coordinated by the two tridentate (2-pyrid-yl)(2-pyridyl-amino)-methano-late ligands, forming a six-coordinate environment. The four pyridyl N atoms constitute the equatorial plane on which the manganese(III) ion lies; the coordination plane suffers a slight distortion as indicated by the average plane deviation of 0.058 Å...

Background: Microbial manganese (Mn) cycling in marine and freshwater environments is generally assumed to consist of Mn oxidation in oxic water columns and Mn(IV) oxide reduction in anoxic sediments [1] as the only two bioavailable Mn redox species. This dogma was recently overturned with the discovery that soluble Mn dominates the soluble Mn pool at μM concentrations in suboxic environments [...

The structure of the title compound, Mn(II)[Fe(III)(CN)(6)](2/3)·5H(2)O, features a face-centered cubic -Mn-NC-Fe- framework with both Mn and Fe having site symmetry mm. Since one-third of the [Fe(CN)(6)](3-) units are missing for a given formula in order to maintain charge neutrality, each Mn atom around such a vacancy is coordinated not only by the N atoms of the CN groups but also by the O a...

Under glucose-deprived conditions, astrocytes rapidly underwent death due to their increased susceptibility to endogenously produced peroxynitrite (Gila 31, 155-164; J. Neuroimmunol. 112, 55-62; J. Neurochem. 74, 1989-1998). In the present study, the cell membrane-permeable synthetic superoxide dismutase (SOD) mimetic cyclam manganese(III) 1,4,8,11-tetraazacyclodecane (Mn(III)-cyclam) completel...

In the title complex, [Mn(C(28)H(18)N(2)O(2))(N(3))(H(2)O)], the Mn(III) ion adopts a distorted fac-MnO(3)N(3) octa-hedral geometry arising from the O,N,N',O'-tetra-dentate Schiff base ligand, an azide ion and a water mol-ecule. In the crystal, inter-molecular O-H⋯(O,O) and O-H⋯N hydrogen bonds and π-π inter-actions [centroid-centroid separation = 3.5535 (13) Å] link the mol-ecules into chains.

The DSC method has been employed to monitor the kinetics of reticulation of aqueous polyurethane systems without catalysts, and with the commercial catalyst of zirconium (CATXC-6212) and the highly selective manganese catalyst, the complex Mn(III)diacetylacetonemaleinate (MAM). Among the polyol components, the acrylic emulsions were used for reticulation in this research, and as suitable reticu...

The occurrence of a range of recalcitrant organic micropollutants in our aquatic environment has led to the development of various tertiary wastewater treatment methods. In this study, biogenic manganese oxides (Bio-MnOx), biogenic silver nanoparticles (Bio-Ag(0)) and ionic silver were used for the oxidative removal of the frequently encountered drug diclofenac and its dechlorinated form, 2-ani...