A trinuclear anionic trifluoroacetato derivative of iron(II) containing a central O(–I) ligand

Syntheses and crystal structures of solvate complexes of alkaline earth and lanthanoid metal iodides with N,N-dimethylformamide

The solvate complexes that can be obtained by either dissolving metal iodides in N,N-dimethylformamide (DMF) or by synthesising them in DMF have the general composition [M(DMF) x ]I y . DMF shows to behave as simple monodentate ligand with low sterical impact, so that x in the composition follows the radius of M y+. We present here the crystal structures of the alkaline earth and lanthanoid metal iodide complexes [Mg(DMF)6]I2, [Ca(DMF)6]I2, [Sr(DMF)7]I2, [Ba(DMF)8]I2, [La(DMF)9]I3, [Ln(DMF)8]I3 (isotypic series for Ln = Nd, Sm, Eu, Dy, Gd, Er, Yb and Lu) and for the tris-triiodide complex salt [Sc(DMF)6](I3)3. Their different crystal structure types can be compared on the basis of the packing topologies of the nearly spherical cationic entities which show simple sphere packing motifs.

A Novel Porphyrin with a Two-Dimensional Topology and Highly Thermal Stability

A novel iron porphyrin [FeTCPP] n [TCPP = meso-tetra(4-carboxyphenyl)porphyrin] has been synthesised via a hydrothermal reaction and structurally characterised. It has a two-dimensional structure and is thermally stable up to 320°C. UV–Vis, FT–IR and fluorescence data are also reported. Porphyrins have interesting roles in nature such as in green leaves and red blood cells, as well as applications in medicine, catalysis, optics, conductive materials, magnetism and solar energy conversion.

Hexa-kis-(dimethyl-formamide-κO)manganese(II) μ-oxido-bis-[trichlorido-ferrate(III)]

The title compound, [Mn(C₃H₇NO)₆][Fe₂Cl₆O], was obtained unintentionally as a product of an attempted synthesis of heterometallic complexes with Schiff base ligands using manganese powder and FeCl₃·6H₂O as starting materials. In the [Fe₂OCl₆]²⁻ anion, the O atom and the Fe atom occupy positions with site symmetry and 3, respectively, resulting in a linear Fe—O—Fe angle and a staggered conformation. The octa­hedrally surrounded cation (site symmetry ) and the [Fe₂Cl₆O]²⁻ anion are alternately stacked along [001].