Summary
The u.v.-vis. absorption spectra of the products of reaction of commercial ruthenium chlorides with water have been measured. Deconvolution analysis revealed that hexaaquo-, pentaaquohydroxy- and pentaaquo-chlororuthenium(III) ions are formed, in addition to four unknown compounds.
Analysis of the concentration data suggests the formation of soluble oligomers of the primary products over several hours following dissolution. Storage of the solution for ca. 170 h furnishes insoluble materials, characterized by analysis, thermogravimetry and i.r. The bulk of these solids can be described as [Ru2n + 2O3n + 3] ·mH2O or [Ru2n + 2O(3n + 3) - a (OH)2a ·mH2O. We suggest the existence of ruthenium hydrides in these precipitated solids.
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Tyrlik, S.K., Kurzak, K. & Randzio, S.L. Reactions of commercial ruthenium chlorides with O-donor ligands. Reactions with water: u.v.-vis. investigation of soluble products; analysis, thermogravimetry and an i.r. study of precipitated solids. Transition Met Chem 20, 330–337 (1995). https://doi.org/10.1007/BF00139123
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DOI: https://doi.org/10.1007/BF00139123