期刊
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
卷 58, 期 2, 页码 229-238出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036023613020083
关键词
-
资金
- Ministry of Education and Science of the Russian Federation [14.B37.21.0141]
- Division of Chemistry and Materials Science, RAS [5.9]
- Federal Target Program Scientific and Scientific-Pedagogical Personnel of the Innovative Russia [02.740.11.0628]
Aqueous and nitric acid solutions of Na-2[(RuNO)-N-15((NO2)-N-15)(4)OH] in the concentration range = 0-3.3 mol/L have been studied by N-15 NMR, dominating complex species have been identified, and the equilibrium constants for the nitrate ion incorporation into the inner coordination sphere of nitrosoruthenium have been estimated. The equilibration time for such equilibria is no more than 2 h at room temperature. In addition to the nitro complexes, isomeric nitritonitronitrosoruthenium compounds have been identified in solutions. In weak acidic solutions at < 0.25 mol/L, nitro and nitritonitro complexes containing four and three coordinated nitrite ions predominate. At the HNO3 concentration 0.4-1.7 mol/L, the vast majority of ruthenium presents in solution as fac-dinitronitrosoruthenium complexes containing coordinated water molecules and nitrate ions. In solutions with > 1.5 mol/L, the fractions of dinitro- and mononitronitrosoruthenium complexes are comparable. In strong nitric acid solutions ( = 10 mol/L) kept for three years in contact with air, nitro complexes are absent, and mononitrato- and dinitratoaquanitrosoruthenium complexes are dominating.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据