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Updated: Jun 18, 2026
Preparation of SNS Cobalt(II) Pincer Model Complexes of Liver Alcohol Dehydrogenase
Published on: March 19, 2020
Experimental and theoretical charge-density study of a tetranuclear cobalt carbonyl complex
Jacob Overgaard1, Jamie A Platts, Bo B Iversen
1Department of Chemistry, Aarhus University, Denmark. jacobo@chem.au.dk
Abstract:
Details of the complex bonding environment present in the molecular centre of an alkyne-bridged dicobalt complex have been examined using a combination of experimental and theoretical charge-density modelling for two compounds which share a central Co(2)C(2) tetrahedral moiety as their common motif. Topological analysis of the experimental electron density illustrates the problem of separating the Co-C bond-critical points (b.c.p.s) from the intervening ring-critical point (r.c.p.), due largely to the flat nature of the electron density in the CoC(2) triangles. Such a separation of critical points is immediately obtained from a topological analysis of the theoretical electron density as well as from the multipole-projected theoretical density; however, the addition of random noise to the theoretical structure factors prior to multipole modelling leads to a failure in consistently distinguishing two b.c.p.s and one r.c.p. in such close proximity within the particular environment of this Co(2)C(2) centre.
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