A C[subscript 2]-symmetric, basic Fe(iii) carboxylate complex derived from a novel triptycene-based chelating carboxylate ligand
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Lippard_A C2-symmetric.pdf
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Author(s)
Li, Yang
Wilson, Justin J.
Do, Loi Hung
Apfel, Ulf-Peter
Lippard, Stephen J.
Date Issued
June 2012
Journal
Dalton Transactions
Publisher
Royal Society of Chemistry, The
Citation
Li, Yang, Justin J. Wilson, Loi H. Do, Ulf-Peter Apfel, and Stephen J. Lippard. “A C2-symmetric, basic Fe(iii) carboxylate complex derived from a novel triptycene-based chelating carboxylate ligand.” Dalton Transactions 41, no. 31 (2012): 9272.
Version
Author's final manuscript
Abstract
A triptycene-based bis(benzoxazole) diacid ligand H[subscript 2]L2[superscript Ph4] bearing sterically encumbering groups was synthesized. Treatment of H[subscript 2]L2[superscript Ph4] with Fe(OTf)[subscript 3] afforded a C[subscript 2]-symmetric trinuclear iron(III) complex, [NaFe[subscript 3](L2[superscript Ph4])[subscript 2](μ[subscript 3]-O)(μ-O[subscript 2]CCPh[subscript 3])[subscript 2](H[subscript 2]O)[subscript 3]](OTf)[subscript 2] (8). The triiron core of this complex adopts the well known “basic iron acetate” structure where the heteroleptic carboxylates, comprising two Ph[subscript 3]CCO[− over 2] and two (L2[superscript Ph4])[superscript 2−] ligands, donate the six carboxylate bridges. The (L2[superscript Ph4])[superscript 2−] ligand undergoes only minor conformational changes upon formation of the complex.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1039/c2dt31260c
