A Direct Three‐Component Reaction for the Isolation of a Nonanuclear Iron(III) Phosphonate | Zendy

Goura Joydeb | Zendy; Liu Junjie | Zendy; Goddard Paul | Zendy; Chandrasekhar Vadapalli | Zendy

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A Direct Three‐Component Reaction for the Isolation of a Nonanuclear Iron(III) Phosphonate

Author(s) -

Goura Joydeb,

Liu Junjie,

Goddard Paul,

Chandrasekhar Vadapalli

Publication year - 2014

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.201402371

Subject(s) - chemistry , phosphonate , pivalic acid , triethylamine , anhydrous , ferric , antiferromagnetism , inorganic chemistry , crystallography , magnetism , ligand (biochemistry) , catalysis , organic chemistry , biochemistry , physics , receptor , quantum mechanics , condensed matter physics

The synthesis, structure, and magnetism of a nonanuclear iron(III) phosphonate, [Fe 9 III (μ 3 ‐O) 4 (O 3 PC 5 H 9 ) 3 (O 2 CCMe 3 ) 13 ] · (EtOH) 0.5 · (Et 2 O) 0.5 ( 1 ), is described. Compound 1 was obtained in the direct reaction of anhydrous ferric chloride, cyclopentylphosphonic acid, and pivalic acid in the presence of triethylamine. Compound 1 possesses a distorted icosahedral structure; nine of the vertices are occupied by Fe III , whereas three others are occupied by the phosphorus atoms of the cyclopentylphosphonate ligand. Mössbauer spectroscopy of 1 confirms the presence of high‐spin Fe III . Low‐temperature magnetic studies reveal the presence of strong antiferromagnetic coupling between the Fe 3+ ions.

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