Abstract
The crystal structures of [(phenylimino) phenylmethyl]ferrocene ( 1) and 2-chloromercurio-1-[(phenylimino)phenylmethyl]ferrocene ( 2) have been determined by X-ray diffraction methods to obtain structural information on the anils of benzoylferrocene and their mercurated derivatives. The most striking feature is the specific arrangements of the phenyl and cyclopentadienyl rings around the CN bond. It has been found that the N-phenyl ring adopts a trans conformation with the ferrocenyl moiety, and the twist angles of both the N-phenyl and C-phenyl rings out of the plane of CN bond are much larger than that of the s substituted ferrocenyl ring out of this plane. A comparison between the structures of 1 and 2 is presented. The intramolecular coordination between the Hg and N in compound 2 is confirned, showing an NHg distance of 2.870 Å, shorter than the sum of van der Waals radii of N and Hg (3.05–3.15 Å).
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