Formation of Coordinated Nitrosamines by Reaction of K[IrCl<sub>5</sub>NO] with Primary Amines
作者:Fabio Doctorovich、Florencia Di Salvo、Natalia Escola、Cecilia Trápani、Linda Shimon
DOI:10.1021/om050457n
日期:2005.9.1
the formation of primary aromatic and aliphatic coordinated nitrosamines by reaction of the extremely reactive K[IrCl5NO] with p-toluidine and 2,2,2-trifluoroethylamine, respectively. After the counteranion of the product was changed to tetraphenylphosphonium, crystal structures could be determined by X-ray diffraction. Complexes containing the highly unstable primarynitrosamines as ligands are generally
作者:Natalia Escola、Damián E. Bikiel、Ricardo Baggio、Florencia Di Salvo、Fabio Doctorovich
DOI:10.1016/j.ica.2011.02.063
日期:2011.8
Pentachloronitrosyliridate(III) ([IrCl5(NO)] ), the most electrophilic NO+ known to date, can be reduced chemically and/or electrochemically by one or two electrons to produce the NO center dot and HNO/NO forms. The nitroxyl complex can be formed either by hydride attack to the NO+ in organic solvent, or by decomposition of iridium-coordinated nitrosothiols in aqueous solutions, while NO center dot is produced electrochemically or by reduction of [IrCl5(NO)] with H2O2. Both NO center dot and HNO/NO complexes are stable under certain conditions but tend to labilize the trans chloride and even the cis ones after long periods of time. As expected, the NO+ is practically linear, although the IrNO moiety is affected by the counterions due to dramatic changes in the solid state arrangement. The other two nitrosyl redox states comprise bent structures. (C) 2011 Elsevier B. V. All rights reserved.