Trinuclear oxo-centered iron and iron/nickel clusters - Ligand-controlled homo/hetero valency

Rolf W. Saalfrank; Andreas Scheurer; Klaus Pokorny; Harald Maid; Uwe Reimann; Frank Hampel; Frank W. Heinemann; Volker Schünemann; Alfred X. Trautwein

doi:10.1002/ejic.200400821

Trinuclear oxo-centered iron and iron/nickel clusters - Ligand-controlled homo/hetero valency

Rolf W. Saalfrank^*, Andreas Scheurer, Klaus Pokorny, Harald Maid, Uwe Reimann, Frank Hampel, Frank W. Heinemann, Volker Schünemann, Alfred X. Trautwein

^*Corresponding author for this work

Institute of Physics

University of Erlangen–Nuremberg

8 Citations (Scopus)

Abstract

Cleavage of the all-iron(III) μ₂-O^2--linked dimer [Fe^III3O(L)₂-(OAc)₄]₂O (3) with lithium chloride yields [Fe^III3O(L)₂-(OAc)₄]Cl (4) and with sodium benzoate, in combination with complete acetate-to-benzoate coligand exchange, gives [Fe^III3O(L)₂-(OBz) ₄]OBz (5). Reduction of the all-Fe^III complex 5 [Fe/L/OBz = 3:2:(4+1)] with sodium iodide affords the homonuclear mixed-valent cluster [Fe^IFe^III₂O(L)₃(OBz)₃] (6) (Fe/L/OBz = 1:1:1) and requires fundamental coligand-to-ligand exchange. Likewise, when the all-Fe^III dimer [Fe^III ₃O(L)₂(OAc)₄]₂O (3) (Fe/L/OAc = 3:2:4) is cleaved with nickel acetate, the mixed-valent heteronuclear complex [Ni^IIFe^III₂-O(L)₃(OAc)₃] (7) (M/L/OAc = 1:1:1) is formed.

Original language	English
Journal	European Journal of Inorganic Chemistry
Issue number	7
Pages (from-to)	1383-1387
Number of pages	5
ISSN	1434-1948
DOIs	https://doi.org/10.1002/ejic.200400821
Publication status	Published - 08.04.2005

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@article{14d9bb92b60441818b354f96b94d7770,

title = "Trinuclear oxo-centered iron and iron/nickel clusters - Ligand-controlled homo/hetero valency",

abstract = "Cleavage of the all-iron(III) μ2-O2--linked dimer [FeIII3O(L)2-(OAc)4]2O (3) with lithium chloride yields [FeIII3O(L)2-(OAc)4]Cl (4) and with sodium benzoate, in combination with complete acetate-to-benzoate coligand exchange, gives [FeIII3O(L)2-(OBz) 4]OBz (5). Reduction of the all-FeIII complex 5 [Fe/L/OBz = 3:2:(4+1)] with sodium iodide affords the homonuclear mixed-valent cluster [FeIFeIII2O(L)3(OBz)3] (6) (Fe/L/OBz = 1:1:1) and requires fundamental coligand-to-ligand exchange. Likewise, when the all-FeIII dimer [FeIII 3O(L)2(OAc)4]2O (3) (Fe/L/OAc = 3:2:4) is cleaved with nickel acetate, the mixed-valent heteronuclear complex [NiIIFeIII2-O(L)3(OAc)3] (7) (M/L/OAc = 1:1:1) is formed.",

author = "Saalfrank, {Rolf W.} and Andreas Scheurer and Klaus Pokorny and Harald Maid and Uwe Reimann and Frank Hampel and Heinemann, {Frank W.} and Volker Sch{\"u}nemann and Trautwein, {Alfred X.}",

year = "2005",

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doi = "10.1002/ejic.200400821",

language = "English",

pages = "1383--1387",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

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T1 - Trinuclear oxo-centered iron and iron/nickel clusters - Ligand-controlled homo/hetero valency

AU - Saalfrank, Rolf W.

AU - Scheurer, Andreas

AU - Pokorny, Klaus

AU - Maid, Harald

AU - Reimann, Uwe

AU - Hampel, Frank

AU - Heinemann, Frank W.

AU - Schünemann, Volker

AU - Trautwein, Alfred X.

PY - 2005/4/8

Y1 - 2005/4/8

N2 - Cleavage of the all-iron(III) μ2-O2--linked dimer [FeIII3O(L)2-(OAc)4]2O (3) with lithium chloride yields [FeIII3O(L)2-(OAc)4]Cl (4) and with sodium benzoate, in combination with complete acetate-to-benzoate coligand exchange, gives [FeIII3O(L)2-(OBz) 4]OBz (5). Reduction of the all-FeIII complex 5 [Fe/L/OBz = 3:2:(4+1)] with sodium iodide affords the homonuclear mixed-valent cluster [FeIFeIII2O(L)3(OBz)3] (6) (Fe/L/OBz = 1:1:1) and requires fundamental coligand-to-ligand exchange. Likewise, when the all-FeIII dimer [FeIII 3O(L)2(OAc)4]2O (3) (Fe/L/OAc = 3:2:4) is cleaved with nickel acetate, the mixed-valent heteronuclear complex [NiIIFeIII2-O(L)3(OAc)3] (7) (M/L/OAc = 1:1:1) is formed.

AB - Cleavage of the all-iron(III) μ2-O2--linked dimer [FeIII3O(L)2-(OAc)4]2O (3) with lithium chloride yields [FeIII3O(L)2-(OAc)4]Cl (4) and with sodium benzoate, in combination with complete acetate-to-benzoate coligand exchange, gives [FeIII3O(L)2-(OBz) 4]OBz (5). Reduction of the all-FeIII complex 5 [Fe/L/OBz = 3:2:(4+1)] with sodium iodide affords the homonuclear mixed-valent cluster [FeIFeIII2O(L)3(OBz)3] (6) (Fe/L/OBz = 1:1:1) and requires fundamental coligand-to-ligand exchange. Likewise, when the all-FeIII dimer [FeIII 3O(L)2(OAc)4]2O (3) (Fe/L/OAc = 3:2:4) is cleaved with nickel acetate, the mixed-valent heteronuclear complex [NiIIFeIII2-O(L)3(OAc)3] (7) (M/L/OAc = 1:1:1) is formed.

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Trinuclear oxo-centered iron and iron/nickel clusters - Ligand-controlled homo/hetero valency

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