Synthesis and structure of oligomeric dimesitylgermyl-substituted carbodiimides; characterization of higher oligomers

Dahrouch, M., Rivière-Baudet, M., Satgé, J., Mauzac, M., Cardin, C. ORCID: https://orcid.org/0000-0002-2556-9995 and Thorpe, J. H. (1998) Synthesis and structure of oligomeric dimesitylgermyl-substituted carbodiimides; characterization of higher oligomers. Organometallics, 17 (4). pp. 623-629. ISSN 0276-7333 doi: 10.1021/om970604k

Abstract/Summary

New cyclic oligomers of dimesitylgermylene carbodiimides (Mes2GeNCN)n (n = 3 (1) and 4 (2)) were synthesized by reactions of dimesityldichlorogermane with either cyanamide in the presence of triethylamine or lithium cyanamide. The reactions always gave 1, the trimer of the hypothetical (Mes2GeN−CN), as the major compound. Higher oligomers 3 (n up to 20−30) also can be isolated, depending on the reaction conditions. In THF solution at room temperature, 2 and 3 slowly isomerize to 1, which seems to be the most stable compound. X-ray analysis of trimer 1 and tetramer 2 shows unstrained tetrahedral germanium atoms and linear diimine linkers.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/23764
Item Type	Article
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Publisher	ACS Publications
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