The first urea azine molecule and its coordination to uranium in the first actinide guanidinate complexes
Literature Information
Claude Villiers, Pierre Thuéry, Michel Ephritikhine
The urea azine molecule (CyNH)2CN–NC(HNCy)2 (1) was easily prepared by reaction of the carbodiimide CyNCNCy and H2NNH2 and this novel type of bis-guanidine proved useful in affording chelating and bridging ligands for the building of polynuclear compounds, as illustrated by the synthesis of the first uranium guanidinate complexes [(THF)2Li(μ-Cl)2UCl(μ-L)]2 (2) and [UCl(μ-L)2UCl2(μ-Cl)2UCl(μ-L)]2 (3) (L = 1 − 2H); the X-ray crystal structures of compounds 1–3 were determined.
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![4-[(3-Chloro-2-fluorophenyl)amino]-7-methoxy-6-quinazolinyl acetate structure 4-[(3-Chloro-2-fluorophenyl)amino]-7-methoxy-6-quinazolinyl acetate structure](https://static.chemtradehub.com/structs/740/740081-22-5-f58f.webp)
![2-{[(1R,2S)-2-Aminocyclohexyl]amino}-4-{[3-(2H-1,2,3-triazol-2-yl)phenyl]amino}-5-pyrimidinecarboxamide structure 2-{[(1R,2S)-2-Aminocyclohexyl]amino}-4-{[3-(2H-1,2,3-triazol-2-yl)phenyl]amino}-5-pyrimidinecarboxamide structure](https://static.chemtradehub.com/structs/137/1370261-96-3-40df.webp)


