Structure of the First Nitrosoammine Complexes of Ruthenium with a Coordinated Sulfate Ion: [Ru(NO)(NH3)4(SO4)](HSO4)·H2O and [Ru(NO)(NH3)3Cl(SO4)]·2H2O
Journal of Structural Chemistry
, E-ISSN: 1573-8779
||Ammine complexes; Chlorine complexes; IR spectroscopy; Nitroso complexes; Ruthenium; Single crystal X-ray diffraction; Sulfate complexes; Thermogravimetry
A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk
Novosibirsk State University
We present a thermogravimetric study of the thermolysis of trans-[Ru(NO)(NH3)4(H2O)](HSO 4)SO4 in a helium atmosphere. The intermediate product of thermolysis (at 186°C) is treated with a 2 M H2SO4 solution to obtain the first example of a sulfate ammine complex of nitrosoruthenium [Ru(NO)(NH3)4(SO4)](HSO 4)·H2O (I) with a ∼70% yield. The product of higher temperature thermolysis (220°C) is treated with acids (H 2SO4 and HCl) to obtain a triammine complex [Ru(NO)(NH3)3Cl(SO4)]·2H2O (II). The structure of the compounds is found by single crystal XRD: Pna2 1 space group, a = 10.8005(2) Å, b = 14.9032(3) Å, c = 7.7603(1) Å) (I) and P21/n space group, a = 8.9397(1) Å, b = 8.3276(1) Å, c = 13.8993(2) Å; β = 97.358(1)° (II).