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Merck

An unprecedented Fe(36) phosphonate cage.

Inorganic chemistry (2013-01-29)
Christine M Beavers, Andrey V Prosvirin, Andrey V Prosverin, John D Cashion, Kim R Dunbar, Anne F Richards
PMID23350834
ABSTRACT

The reaction of 2-pyridylphosphonic acid (LH(2)) with iron(II) perchlorate and iron(III) nitrate afforded an interconnected, double-layered, cationic iron cage, [{Fe(36)L(44)(H(2)O)(48)}](20+) (1a), the largest interconnected, polynuclear ferric cage reported to date. Magnetic studies on 1a revealed antiferromagnetic coupling between the spins on adjacent Fe(III) ions.

MATERIALS
Product Number
Brand
Product Description
529303
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ≥99.999% trace metals basis
254223
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ≥99.95% trace metals basis
F8508
Sigma-Aldrich
Iron(III) nitrate nonahydrate, BioReagent, suitable for cell culture
216828
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ACS reagent, ≥98%
50439
Supelco
Perchloric acid, 0.01 M HClO4 in water (0.01N), eluent for IC
311421
Sigma-Aldrich
Perchloric acid, 70%, 99.999% trace metals basis
77234
Sigma-Aldrich
Perchloric acid, puriss. p.a., ACS reagent, packed in coated, shock- and leak-protected glass bottle, ≥60% (T)
244252
Sigma-Aldrich
Perchloric acid, ACS reagent, 70%
30755
Sigma-Aldrich
Perchloric acid, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 70.0-72.0%
311413
Sigma-Aldrich
Perchloric acid, ACS reagent, 60%