An unprecedented Fe(36) phosphonate cage.

Heui Man Kim, Chi-Kyeong Kim, Nam-Joo Lee, Hyuk Chu, Chun Kang, Kisoon Kim, Joo-Yeon Lee

Index: Inorg. Chem. 52(4) , 1670-2, (2013)

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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.