Sulfito‐Ammine des zweiwertigen Rutheniums Tetrammino‐Reihe (Ruthen‐Ammine. II.)

Abstract

1. Durch Einwirkung von Natrium‐bisulfit auf Salze der Pentammino‐Reihe des dreiwertigen Rutheniums entstehen die Verbindungen: [RuII(NH3)4(SO3H)2] farblose derbe Kristalle, fast unlöslich, und Na4[RuII(NH3)4(SO3)2(SO3H)2] · 6H2O kleine weiße schwer lösliche Kristalle. 4 Mol. Kristall‐H2O sind sehr locker gebunden, die beiden restlichen H2O entweichen bei 110°.

Ruthenium Tetraammines as a Model of Nitric Oxide Donor Compounds

“…Although, a π-bonding interaction between Ru and NO still exists, that is, HOMO-3 and HOMO-4 [see Table 4 and an orbital representation in Figure 5 (left)], this RuϪNϪO bending induces a considerable ion has a considerable population and its composition is predominant on NO π* orbitals. As shown in Table 2, RuϪNO and NϪO bond lengthening is usual as the same is also observed for [Ru(CN) 5 [44] trans-[Ru(NH 3 ) 4 (SO 2 )(Cl)]Cl, [45,46] trans-[Ru(NH 3 ) 4 (SO 4 )(L)]Cl [47] and trans-[Ru(NH 3 ) 4 (L)(NO)](BF 4 ) 3 [21,22] were prepared as described previously. ESR spectra were recorded in a Bruker ESP 300 E spectrophotometer at the temperature of liquid nitrogen.…”

Sulphur dioxide complexes of the platinum metals

“…(~~ 2q% <o ° (1) This molecular orbital is weakly antibonding between sulphur and oxygen but bonding between oxygen atoms, therefore electron donation from this orbital to an empty orbital on the metal with the appropriate symmetry could result in some shortening of the S-O bond length and opening up of the O-S-O bond angle.…”

Sulfur: Inorganic Chemistry

“…When a > b the reaction is used for the preparation of sulfanes, but when b > a halosulfanes may be prepared, while if a = b, sulfur is formed. In a typical reaction, chain lengthening to give higher sulfanes can occur with a sequence illustrated in equation (35).…”

“…2H 2 S 2 + S 2 Cl 2 H 2 S 6 + 2HCl 2H 2 S 6 + S 2 Cl 2 H 2 S 14 + 2HCl (35) Assuming that the rates of reaction are comparable, it is possible to predict quite easily the relative proportions of different chain length sulfanes that will be obtained for any particular a/b ratio; and thus it is possible to prepare individual compounds in quite high purity.…”