In an article, published in an article, once mentioned the application of 10049-08-8, Name is Ruthenium(III) chloride,molecular formula is Cl3Ru, is a conventional compound. this article was the specific content is as follows.Application In Synthesis of Ruthenium(III) chloride
X-Ray diffraction measurements have been made for aqueous solutions of sulfates or chlorides of [Ru(phen)3]2+, [Ni(phen)3]2+, [Ru(bpy)3]2+, [Ni(bpy)3]2+, [Rh(bpy)3]3+, and [Cr(bpy)3]3+ (phen= 1,10-phenanthroline, bpy = 2,2?-bipyridine). Radial distribution functions for the metal interactions were obtained by the isomorphous substitution between ruthenium(II) and nickel(II) complexes or between rhodium(III) and chromium(III) complexes. Metal-nitrogen and metal-carbon distances within the complex ions in solution were essentially in agreement with those in the crystals. Regarding the divalent metal complexes, about two water molecules seemed to exist at a distance of 3.5-3.6 A (1 A = 10-10 m) from the central metal atom and 10-11 water molecules existed in the region of 5.3 to 6.3 A, probably in the vicinity of peripheral hollows along the C3 axis of the complex. Further, large broad peaks with high electron density were observed around 7.7 and 11.2 A for the [Ru(bpy)3]2+ ion and around 8.0 and 11.5 A for the [Ru(phen)3]2+ ion, almost independent of salt concentration and kinds of counter ions. These were attributed to the hydrophobic hydration shells having the hydrogen-bonded network structure. The hydration structure of the trivalent metal complexes was significantly different from that observed for the divalent ones: 14-15 water molecules existed in the range of 4.7 to 6.0 A, a part of them presumably in the hollows along the C2 axes of the complex, and only a single broad peak was observed around 7.7 A as the hydrophobic hydration shell. These results indicated that the hydrophobic hydration structure was reduced by the increase of the ionic charge, as predicted from a comparison of temperature coefficients of the Walden product obtained by the conductivity measurements of dilute solutions.
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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI