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Inicio » Actividades I+D > Publicaciones 2011 > NO+, NO·, NO-! Nitrosyl siblings from [I...
artículo con referato
"NO+, NO·, NO-! Nitrosyl siblings from [IrCl5(NO)]-"
N. Escola, D.E. Bikiel, R. Baggio, F. Di Salvo and F. Doctorovich
Inorg. Chim. Acta 374(1) (2011) 528-539
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· 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· is produced electrochemically or by reduction of [IrCl5(NO)]- with H2O2. Both NO· 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.
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