Abstract
A high-yield, mmolar-scale synthesis of pure guanidinium nitroprusside, (CN3H6)2[(57)Fe(CN)5NO] (GNP) from iron metal is described. The iron metal contained pieces of 95.3% 57Fe together with normal iron so that an isotope enrichment in 57Fe of 25% was achieved. Single-crystals of GNP could be grown in cubic shape and dimensions of about 3×4×4 mm3. The purity of the GNP product and the intermediates K4[(57)Fe(CN)6] · 3 H2O and Na2[(57)Fe-(CN)5NO] · 2 H2O was ascertained by 57Fe Mössbauer spectroscopy as well as 13C, 14N and 57Fe NMR spectroscopy. The 57Fe NMR chemical shift for [(57)Fe(CN)5NO]2- in GNP was detected at +2004.0 ppm [vs Fe(CO)5].
| Original language | English |
|---|---|
| Journal | Zeitschrift fur Anorganische und Allgemeine Chemie |
| Volume | 627 |
| Issue number | 7 |
| Pages (from-to) | 1663-1668 |
| Number of pages | 6 |
| ISSN | 0044-2313 |
| DOIs | |
| Publication status | Published - 01.01.2001 |
UN SDGs
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SDG 9 Industry, Innovation, and Infrastructure
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