| Abstract
| - The first monomeric germanethiocarbamyl halides containing a chelating β-diiminateligand, L2(Cl)GeY (L2 = PhNC(Me)CHC(Me)NPh; Y = S (2), Y = Se (3)), have been preparedby the reaction of the corresponding heteroleptic halogermylene L2(Cl)Ge (1) with elementalsulfur or black selenium in refluxing toluene. Single-crystal X-ray structural analyses of 2and 3 reveal that the germanium centers reside in highly distorted tetrahedral environmentsin these compounds; short Ge−Y distances (Ge−S = 2.07 Å (2); Ge−Se = 2.21 Å (3)) areindicative of an unsaturated character of these germanium−chalcogen bonds. Selectivereactions between 2 or 3 and MeLi afforded the corresponding alkylated germanechalcogenones L2(Me)GeY (Y = S (4), Se (5)).
- Two germanethiocarbamyl and germaneselenocarbamyl chlorides containing a β-diiminate ligand, L2(Cl)GeY (L2 = PhNC(Me)CHC(Me)NPh, Y = S (2), Y = Se (3)), have been synthesized and structurally characterized. The very short germanium−sulfur and germanium−selenium bonds in 2 and 3 (Ge−S = 2.07 Å (2), Ge−Se = 2.21 Å (3)) are indicative of a double-bond character between germanium and chalcogen in both compounds. By reaction between 2 or 3 and MeLi the corresponding alkylated germanechalcogenones, L2(Me)GeY (Y = S (4), Y = Se (5)), were obtained.
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