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A Discrete μ 4 ‐Oxido Tetranuclear Iron(III) Cluster
Author(s) -
Sutradhar Manas,
Carrella Luca M.,
Rentschler Eva
Publication year - 2012
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.201200396
Subject(s) - chemistry , crystallography , triclinic crystal system , antiferromagnetism , mössbauer spectroscopy , octahedron , cluster (spacecraft) , ligand (biochemistry) , ion , inorganic chemistry , crystal structure , biochemistry , physics , receptor , organic chemistry , computer science , programming language , condensed matter physics
Reaction of a Schiff base ligand derived from salicyloyl hydrazide and diacetyl monooxime (H 2 L) with a triangular μ 3 ‐oxido‐centered [Fe 3 (μ 3 ‐O)] 7+ core yields a new tetranuclear iron(III) complex. Fe III 4 (μ 4 ‐O) crystallizes in the triclinic space group P $\bar {1}$ . Structural studies reveal that this tetranuclear iron(III) complex is a new structure type of an uncharged (alkoxido)(oxido)iron(III) cluster in which the four iron(III) ions are located at the corners of a distorted tetrahedron. A study of the magnetic properties supports the presence of antiferromagnetic interactions through the central μ 4 ‐oxido ion as well as the μ 2 ‐methoxy groups present, giving an an S = 0 ground state. Mössbauer spectroscopy confirms the presence of high‐spin iron(III) ions in this complex.