Abstract
The crystal structures of the title compounds have been determined by three-dimensional X-ray data (2 215 and 2 439 reflections, respectively) and refined to anR-value of 0.11 (0.10). The two compounds crystallize with very similar structures and have triclinic symmetry, space groupP \(\bar 1\),Z=2. The cell parameters are:a=13.975 (13.752),b=12.324 (12.283),c=7.065 (7.147) Å, α=73.89 (73.75), β=74.83 (75.05), γ=72.21 (71.65)°. The torsion angles of the biphenyl rings are 99.6 and 99.8°.
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Halwax, E., Völlenkle, H. Die Kristall- und Molekülstruktur von {η6,η6′-[2′-(1,3-Dioxolan-2-yl)biphenyl1-2-carbonsäure-methylester]}bis (tricarbonylchrom), C23H16Cr2O10 und von {η6,η6′-[Biphenyl2,2′-dicarbonsäure-methylester]}bis (tricarbonylchrom), C22H14Cr2O10 . Monatsh Chem 114, 687–698 (1983). https://doi.org/10.1007/BF01134182
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DOI: https://doi.org/10.1007/BF01134182