Structure and Dynamics in a Bis(perfluoroalkyl)triazapentadiene Methylmercury Compound

The compound [Ph2N3C2(C3F7)2]HgCH3 was synthesized from Na[Ph2N3C2(C3F7)2] and CH3HgCl. In solution, it exists as a mixture of two isomers that interconvert slowly on the NMR time scale. Both isomers feature a η1-Ph2N3C2(C3F7)2 ligand. In the asymmetrical one, the CH3Hg group is bonded to one of the...

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Bibliographic Details
Published in:Organometallics 2004-05, Vol.23 (10), p.2281-2286
Main Authors: Siedle, A. R, Webb, Robert J, Brostrom, Myles, Newmark, Richard A, Behr, Fred E, Young, Victor G
Format: Article
Language:English
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Summary:The compound [Ph2N3C2(C3F7)2]HgCH3 was synthesized from Na[Ph2N3C2(C3F7)2] and CH3HgCl. In solution, it exists as a mixture of two isomers that interconvert slowly on the NMR time scale. Both isomers feature a η1-Ph2N3C2(C3F7)2 ligand. In the asymmetrical one, the CH3Hg group is bonded to one of the two terminal nitrogen atoms. In the more stable symmetrical isomer, [PhNC(C3F7)]2NHgCH3, mercury is attached to the central nitrogen atom. It is this isomer that crystallizes and that was characterized by X-ray diffraction. Thermodynamic parameters for the CH3Hg shift reaction were obtained by DNMR spectroscopy. 19F NMR spectra were analyzed. A metallotropic rearrangement was not observed in [Ph2N3C2(C3F7)2]AuPPh3.
ISSN:0276-7333
1520-6041
DOI:10.1021/om030408f