[FeII(CN)5(HNO)]3−, ein Produkt der Zwei-Elektronen-Reduktion von Nitroprussid (siehe Schema), wurde spektroskopisch charakterisiert. Der Komplex ist in wassriger Losung bei pH 6 stabil und zersetzt sich nur langsam zu [Fe(CN)6]4− und N2O. Bei steigendem pH-Wert wird er unter Oxidation von NO− zu [FeII(CN)5(NO)]3− deprotoniert. [FeII(CN)5(HNO)]3− ist der erste Nichtham-Eisennitroxylkomplex mit reversibler Redoxaktivitat unter physiologischen Bedingungen.

Three redox states of nitrosyl: NO+, NO*, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform.

https://doc.rero.ch/record/11641/files/Govindaswamy_Padavattan_-_Mono_and_dinuclear_irridium_20090319.pdf

Mono and dinuclear iridium, rhodium and ruthenium complexes containing chelating carboxylato pyrazine ligands: Synthesis, molecular structure and electrochemistry

Synthesis and spectroscopic properties of cationic Ru(II) arene complexes [Ru(η6-arene)(P)Cl(L)]+. (P=PPh3, PEt3, MePPri2 and L=4-cyanopyridine or 1,4-dicyanobenzene)

Rate constants are reported for substitution at the pentacyanoferrate(II) anions Fe(CN)5L3−, for L=4-cyanopyridine and 2-methylpyrazine, as a function of temperature at atmospheric pressure in methanol-water mixtures and as a function of pressure at 298.2 K in aqueous solution. Kinetic parameters (k, ΔH≠, ΔS≠, ΔV≠) are discussed in relation to other Fe(CN)5L3− complexes.

Solvent and pressure effects on kinetics of substitution at pentacyanoferrate(II) anions

Syntheses and characterization of η5-cyclopentadienyl and η5-indenyl ruthenium(II) complexes of arylazoimidazoles: The molecular structure of the complex [(η5-C5H5)Ru(PPh3)(C6H5–NN–C3H3N2)]+

J.A. Olabe

Papers

3-and 4-cyanopyridine complexes of pentacyanoferrate(II) and pentacyanocobaltate(III)