Three octahedral iron(III) nitrate complexes with dimethylated urea ligand isomers, [hexakis(N,N’-dimethylurea-O)iron(III)] (compound 1), trans-[diaquatetrakis(N,N-dimethylurea-O)iron(III)] 2), and [hexakis(N,N-dimethylurea-O)iron(III)] trihydrate 3) were prepared characterized single crystal X-ray diffraction, IR, Raman UV–Vis methods. In compounds 1 3, six dimethylurea ligands coordinate to t...

Pentanuclear, cyanide-bridged clusters [M(tmphen)2]3[M'(CN)6]2 (M/M' = Zn/Cr (1), Zn/Fe (2), Fe/Fe (3), Fe/Co (4), and Fe/Cr (5); tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline) were prepared by combining [M'III(CN)6]3- anions with mononuclear complexes of MII ions with two capping tmphen ligands. The clusters consist of a trigonal bipyramidal (TBP) core with three MII ions in the equatorial ...

The ditopic molecule 3-(1,3,5-trimethyl-4-1H-pyrazolyl)acetylacetone (HacacMePz) combines an acetylacetone group suitable for deprotonation and O,O? coordination to a Pearson hard cation with softer N-donor site. Both binding modes were employed individually: the pyrazolyl moiety was coordinated ZnII, HgII, AgI, trivalent iron tris-chelating complex [Fe(acacMePz)3] isolated. CuII derivative sho...

Granular metallic iron (gFe0) materials have been widely used for eliminating a wide range of pollutants from aqueous solutions over the past three decades. However, intrinsic reactivity gFe0 is rarely evaluated and existing methods such evaluations not standardized. The aim present study was to develop simple spectrophotometric method characterize based on extent dissolution in an ascorbic aci...

Textile and food industries produce a significant volume of effluents containing azo dyes other pollutants. These are serious environmental threats, new methods for their treatment the degradation thus attracting much attention. The current study deals with oxidative by meso-tetrakis(1-methylpyridinium-4-yl)prophyrinatoiron(III), [FeIII(tmpyp)], meta-chloroperoxy benzoic acid (m-CPBA) in aqueou...