Oxo-, hydroxo-, and peroxo-bridged Fe(III) phosphonate cages

Sanjit Konar; Nattamai Bhuvanesh; Abraham Clearfield

doi:10.1021/ja063388s

Oxo-, hydroxo-, and peroxo-bridged Fe(III) phosphonate cages

J Am Chem Soc. 2006 Aug 2;128(30):9604-5. doi: 10.1021/ja063388s.

Authors

Sanjit Konar¹, Nattamai Bhuvanesh, Abraham Clearfield

Affiliation

¹ Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, USA.

PMID: 16866494
DOI: 10.1021/ja063388s

Abstract

A series of five Fe(III) phosphonate clusters with four different topologies is reported. The choice of coligand carboxylate plays an important role in directing the structure of the molecule. [Fe9(O)4(O2CCMe3)13(C10P)3] (1) and [Fe9(O)2(OH)(CO2Ph)10(C10P)6(H2O)2](CH3CN)7 (2; camphyl phosphonic acid, C10H17PO3H2 = C10PH2) represent two unprecedented nonanuclear Fe(III) cages having Fe9O4 and Fe9(O)2(OH) core structures, respectively. Whereas [Fe6O2(O)2(O2CCMe3)8(C10P)2 (H2O)2](CH3CN)4 (3) is a peroxo-bridged hexameric compound with an Fe6(O)2(O2) core. [Fe4(O)(O2CCMe3)4(C10P)3(Py)4](CH3CN)3 (4) and [Fe4(O)(O2CPh)4(C10P)3(Py)4](Py)3(CH3CN)2 (5; Py = pyridine) represents two tetranuclear clusters with the same Fe4O core structure.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.