Premium
Synthesis of Isotope Enriched (CN 3 H 6 ) 2 [ 57 Fe(CN) 5 NO] starting from 57 Fe
Author(s) -
Janiak Christoph,
Dorn Thomas,
Paulsen Hauke,
Wrackmeyer Bernd
Publication year - 2001
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200107)627:7<1663::aid-zaac1663>3.0.co;2-#
Subject(s) - isotope , radiochemistry , chemistry , analytical chemistry (journal) , physics , nuclear physics , environmental chemistry
A high‐yield, mmolar‐scale synthesis of pure guanidinium nitroprusside, (CN 3 H 6 ) 2 [ (57) Fe(CN) 5 NO] (GNP) from iron metal is described. The iron metal contained pieces of 95.3% 57 Fe together with normal iron so that an isotope enrichment in 57 Fe of 25% was achieved. Single‐crystals of GNP could be grown in cubic shape and dimensions of about 3 × 4 × 4 mm 3 . The purity of the GNP product and the intermediates K 4 [ (57) Fe(CN) 6 ] · 3 H 2 O and Na 2 [ (57) Fe(CN) 5 NO] · 2 H 2 O was ascertained by 57 Fe Mössbauer spectroscopy as well as 13 C, 14 N and 57 Fe NMR spectroscopy. The 57 Fe NMR chemical shift for [ (57) Fe(CN) 5 NO] 2– in GNP was detected at +2004.0 ppm [vs Fe(CO) 5 ].