Structure of iron(III)-tiron complexes in aqueous solution.

The Structure of Zinc Chloride Complexes in Aqueous Solution

The structure of zinc chloride complexes with different ratios of chloride to zinc, formed in concentrated ZnCl2 aqueous solutions, were determined f rom large-angle X-ray scattering using concentrations of the chloride complexes estimated by complementary Raman spectroscopic measurements. The highest chloro complex, [ZnCl4]~, is tetrahedral with a Zn-Cl bond length of 2.294(4) Ä. The trichloro...

Thermodynamic study of dioxovanadium (V) Complexes with p-sulphonato-calix [6] arene in aqueous solution

[Supramolecular chemistry of multinuclear zinc(II) complexes in aqueous solution].

We report novel supramolecular polyhedrons formed by three-dimensional self-assembly of multinuclear zinc(II)-12-membered tetraamine (= cyclen = 1,4,7,10-tetraazacyclododecane) complexes with potentially multidentate ligands such as cyanuric acid (CA) and trithiocyanuric acid (TCA) in aqueous solution. Two new supermolecular frameworks were isolated by self-assembly of a tris (Zn(2+)-cyclen) (Z...

Arene ruthenium bis-saccharinato complexes: Synthesis, molecular structure and catalytic oxidation properties in aqueous solution

Arene ruthenium complexes [(h-arene)Ru(sacc)2(OH2)] (arene 1⁄4 para-cymeme, benzene) containing an aqua and two saccharinato ligands have been synthesized from [(h-arene)RuCl2]2 and sodium saccharinate in a water-ethanol mixture (1:1). The aqua complex [(h-MeC6H4Pr)Ru(sacc)2(OH2)] reacts with acetonitrile to give the acetonitrile complex [(h-MeC6H4Pr)Ru(sacc)2(NCMe)]. The corresponding benzene ...

the role of thematic structure in comprehending spoken language

in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...