Abstract
Crystal structure of (Et4N)[{μ 3-SbI}Fe3-SbI}Fe3Cp(CO)10] was determined by X-ray diffraction analysis. The compound was synthesized by the reaction between (Et4N)2[Fe2(CO)8] and CpFe(CO)2SbI2 in a THF solution with cooling in an argon atmosphere. The crystals are monoclinic, a=12.792(2), b=14.152(3), c=17.373(3) Å, β=92.32(1)°, Vcell=3143(1) Å3, space group P21/n, Z=4, dcalc=1.885 g/cm3, Syntex P21, λCuKα radiation, R(F)=0.0744 for 877 Fhkl>6σ(Fhkl). The data were corrected for crystal decomposition according to the drop in the intensities of control reflections (by 23% during 29 h X-ray exposure). In the cluster anion, the Sb−Fe distances (ave. 2.57(1) Å) and the I−Sb−Fe and Fe−Sb−Fe angles (ave. 102.7(6) and 115.4(4)°) have virtually the same values as in other known complexes containing HalSbFe3 and SbFe4 fragments. The Fe...Fe distances of 4.312-4.369 Å indicate that the metal-metal bonds are absent.
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Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences. Translated fromZhurnal Strukturmoi Khimii, Vol. 36, No. 5, pp. 919–924, September–October, 1995.
Translated by L. Smolina
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Konchenko, S.N., Virovets, A.V., Podberezskaya, N.V. et al. Synthesis and crystal structure of (Et4N)[{μ 3-SbI}Fe3(η 5-C5H5)(CO)10]. J Struct Chem 36, 837–842 (1995). https://doi.org/10.1007/BF02579678
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DOI: https://doi.org/10.1007/BF02579678