1160612-01-0Relevant articles and documents
Stable compounds of composition LGe(II)R (R = OH, PhO, C6F 5O, PhCO2) prepared by nucleophilic addition reactions
Jana, Anukul,Nekoueishahraki, Bijan,Roesky, Herbert W.,Schulzke, Carola
, p. 3763 - 3766 (2009)
The stable β-diketiminate germanium(II) compounds LGeR [L = HC(CMeNAr)2, Ar = 2,6-iPr2C6H3] (R = OTf, OH, PhO, C6F5O, PhCO2) are described. LGeOTf (2) is synthesized by salt metathesis reaction of LGeCl (1) with AgOTf and can be isolated as colorless crystals in 90% yield. Compound L'Ge (3) (L' = CH{(C=CH2)(CMe)(2,6-iPr2C6H3N) 2}) was obtained by treatment of LGeOTf (2) with 1 equiv of 1,3di-tert-butylimidazol-2-ylidene (NHC) in toluene. Reaction of 3 with H 2O, PhOH, C6F5OH, and PhCO2H, respectively, in toluene provided the germanium(II) compounds 4-7 in high yield. Compounds 2-7 were characterized by microanalysis and multinuclear NMR spectroscopy. Furthermore compounds 5, 6, and 7 are confirmed by X-ray structural analysis with the result that compounds 5,6, and 7 are monomeric and the germanium center resides in a trigonal-pyramidal environment.