Acta Cryst. (2003). C59, m561-m564 [doi:10.1107/S0108270103025691]
![[bold mu]](/logos/entities/mu_bdgif.gif)
-O)(-O2CCF3)2(O2CCF3)2(C10H8N2)2] and [Fe4(3-O)2(-O2CCF3)6(O2CCF3)2(C10H8N2)2]·CF3CO2HAbstract: Two new iron-oxo clusters, viz. di--trifluoroacetato--oxo-bis[(2,2'-bipyridine-![[bold kappa]](/logos/entities/kappa_bdgif.gif)
2N,N')(trifluoroacetato-O)iron(III)], [Fe2O(CF3CO2)4(C10H8N2)2], and bis(2,2'-bipyridine)di-3-oxo-hexa--trifluoroacetato-bis(trifluoroacetato)tetrairon(III) trifluoroacetic acid solvate, [Fe4O2(CF3CO2)8(C10H8N2)2]·CF3CO2H, contain dinuclear and tetranuclear FeIII cores, respectively. The FeIII atoms are in distorted octahedral environments in both compounds and are linked by oxide and trifluoroacetate ions. The trifluoroacetate ions are either bridging (bidentate) or coordinated to the FeIII atoms via one O atom only. The fluorinated peripheries enhance the solubility of these compounds. Formal charges for all the Fe centers were assigned by summing valences of the chemical bonds to the FeIII atom.
Formula: [Fe2O(CF3CO2)4(C10H8N2)2] and [Fe4O2(CF3CO2)8(C10H8N2)2]·C2F3O2H
Online 30 November 2003
 |   Structure factor file (CIF format) (341.8 kbytes) |
| Structure factor file (CIF format) (512.0 kbytes) |
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