TY - JOUR
T1 - Solvatothermal Syntheses and Structural Characterizations of Polyoxoalkoxometalates
T2 - The Heptanuclear [{Fe(OH)(CH3CN)2} Fe6OCl6 {(OCH2)3CCH2OH}4], the Decanuclear [Fe10O2Cl8{(OCH2) 3CCH2CH3}6], and the Bimetallic
AU - Finn, Robert C.
AU - Zubieta, Jon
PY - 2000/1/1
Y1 - 2000/1/1
N2 - Solvatothermal syntheses have been exploited to effect the isolation of three novel polyoxoalkoxometalate clusters, [{Fe(OH)(CH3CN)2} Fe6OCl6{(OCH2)3 CCH2OH}4] (1), [Fe10O2Cl8{(OCH2) 3CCH2CH3}6] (2), and [(VO)2Fe8O2 Cl6{(OCH2)3CCH2CH3} 6] (3). The structure of 1 may be described as a hexametalate core {Fe6OCl6}10+, consisting of a octahedral arrangement of chloride ligands encasing an octahedron of six Fe(III) sites, with a central oxo group. The remaining four coordination sites at each octahedral iron center are occupied by doubly bridging oxygen donors from the trisalkoxo ligands. One triangular face of this substructure, defined by three oxygen atoms, from three adjacent trisalkoxo ligands, is capped by the {Fe(OH)(CH3CN)2}2+ subunit. The structure of 2 is based on the decametalate core of edge-sharing octahedra. The eight peripheral Fe(III) sites of the cluster bond to four oxygen donors from the trisalkoxo ligands, a terminal Cl- ligand, and one of the μ6-oxo groups. The two central iron sites are linked to four oxygen donors from the trisalkoxo ligands and to both of the μ6-oxo groups. Cluster 3 is structurally related to 2 with two {FeCl}2+ units replaced by {VO}2+ groups.
AB - Solvatothermal syntheses have been exploited to effect the isolation of three novel polyoxoalkoxometalate clusters, [{Fe(OH)(CH3CN)2} Fe6OCl6{(OCH2)3 CCH2OH}4] (1), [Fe10O2Cl8{(OCH2) 3CCH2CH3}6] (2), and [(VO)2Fe8O2 Cl6{(OCH2)3CCH2CH3} 6] (3). The structure of 1 may be described as a hexametalate core {Fe6OCl6}10+, consisting of a octahedral arrangement of chloride ligands encasing an octahedron of six Fe(III) sites, with a central oxo group. The remaining four coordination sites at each octahedral iron center are occupied by doubly bridging oxygen donors from the trisalkoxo ligands. One triangular face of this substructure, defined by three oxygen atoms, from three adjacent trisalkoxo ligands, is capped by the {Fe(OH)(CH3CN)2}2+ subunit. The structure of 2 is based on the decametalate core of edge-sharing octahedra. The eight peripheral Fe(III) sites of the cluster bond to four oxygen donors from the trisalkoxo ligands, a terminal Cl- ligand, and one of the μ6-oxo groups. The two central iron sites are linked to four oxygen donors from the trisalkoxo ligands and to both of the μ6-oxo groups. Cluster 3 is structurally related to 2 with two {FeCl}2+ units replaced by {VO}2+ groups.
KW - Decametalate core
KW - Hexametalate core
KW - Iron cluster
KW - Mixed iron-vanadium cluster
KW - Polyoxoalkoxometalate
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U2 - 10.1023/A:1009055728770
DO - 10.1023/A:1009055728770
M3 - Article
AN - SCOPUS:0034551181
SN - 1040-7278
VL - 11
SP - 461
EP - 482
JO - Journal of Cluster Science
JF - Journal of Cluster Science
IS - 4
ER -