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Issue 31, 2012
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A C2-symmetric, basic Fe(III) carboxylate complex derived from a novel triptycene-based chelating carboxylate ligand

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Abstract

A triptycene-based bis(benzoxazole) diacid ligand H22L2Ph4Ph4 bearing sterically encumbering groups was synthesized. Treatment of H22L2Ph4Ph4 with Fe(OTf)3 afforded a C2-symmetric trinuclear iron(III) complex, [NaFe3(L2Ph4Ph4Ph4)23-O)(μ-O2CCPh3)2(H2O)3](OTf)2 (8). The triiron core of this complex adopts the well known “basic iron acetate” structure where the heteroleptic carboxylates, comprising two Ph3CCO2 and two (L2Ph4Ph4Ph4)2− ligands, donate the six carboxylate bridges. The (L2Ph4Ph4Ph4)2− ligand undergoes only minor conformational changes upon formation of the complex.

Graphical abstract: A C2-symmetric, basic Fe(iii) carboxylate complex derived from a novel triptycene-based chelating carboxylate ligand

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Publication details

The article was received on 16 May 2012, accepted on 14 Jun 2012 and first published on 29 Jun 2012


Article type: Communication
DOI: 10.1039/C2DT31260C
Citation: Dalton Trans., 2012,41, 9272-9275
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    A C2-symmetric, basic Fe(III) carboxylate complex derived from a novel triptycene-based chelating carboxylate ligand

    Y. Li, J. J. Wilson, L. H. Do, U. Apfel and S. J. Lippard, Dalton Trans., 2012, 41, 9272
    DOI: 10.1039/C2DT31260C

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