oa South African Journal of Chemistry - Redetermination of the structure of biferrocene
|Article Title||Redetermination of the structure of biferrocene|
|© Publisher:||South African Chemical Institute (SACI)|
|Journal||South African Journal of Chemistry|
|Affiliations||1 *Department of Chemistry, University of the Witwatersrand, Johannesburg, **Department of Chemistry, University of the Witwatersrand, Johannesburg & ***Department of Chemistry, University of the Witwatersrand, Johannesburg.|
|Publication Date||Jan 1982|
|Pages||57 - 59|
|Keyword(s)||Biferrocene, [C5H5FeC5H4]2, Crystal structure, Four-circle diffractometer, Graphite-crystal monochromator for Mo-?? radiation and X-ray diffraction methods|
The crystal structure of biferrocene, [C5H5FeC5H4]2, has been reinvestigated by X-ray diffraction methods at room temperature. Data were collected on a four-circle diffractometer equipped with graphite-crystal monochromator for Mo-?? radiation. To assess the degree of disorder, data were collected over one hemisphere, although the crystal class is known to be monoclinic. Exhaustive least-squares refinement (R = 0,066) failed to produce a model that accounts for all of the observed electron density. The unexplained peaks define a distorted five-membered ring which is recognized as the remnant of an ordered low-temperature phase.
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