Kationische Thionitrosyl-Komplexe des Chroms / Cationic Thionitrosyl Complexes of Chromium

Abstract

Abstract A nitromethane solution of NS+PF6 -, obtained in situ from N3S3Cl3 and AgPF6 (1:3), reacts with benzene tricarbonyl chromium in acetonitrile solution to give the thionitrosyl-containing salt [Cr(NS)(NC-Me)5](PF6)2 (1)-In the presence of Zerf-butyl isocyanide and Zn powder, 1 is reduced to [Cr(NS)(CN-CMe3)5F6 (3), while subsequent oxidation of 3 with either NOPF6 or AgPF6 leads to [Cr(NS)(CN-CMe3)5](PF6)2 (5). The thionitrosyl-containing salts 1, 3 and 5 are compared with the corresponding nitrosyl complexes.