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
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%
311413
Sigma-Aldrich
Perchloric acid, ACS reagent, 60%
30755
Sigma-Aldrich
Perchloric acid, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 70.0-72.0%
311421
Sigma-Aldrich
Perchloric acid, 70%, 99.999% trace metals basis
F8508
Sigma-Aldrich
Iron(III) nitrate nonahydrate, BioReagent, suitable for cell culture
254223
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ≥99.95% trace metals basis
02583
Supelco
Iron standard for AAS, analytical standard, 10.00 g/L Fe in nitric acid, traceable to BAM
529303
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ≥99.999% trace metals basis
50439
Supelco
Perchloric acid concentrate, 0.01 M HClO4 in water (0.01N), eluent concentrate for IC
216828
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ACS reagent, ≥98%