692776-46-8Relevant articles and documents
Preparation and structure of the first germanium(II) hydroxide: The congener of an unknown low-valent carbon analogue
Pineda, Leslie W.,Jancik, Vojtech,Roesky, Herbert W.,Neculai, Dante,Neculai, Ana M.
, p. 1419 - 1421 (2004)
Trapping HCl with an Arduengo-type carbene was the key to preparing and isolating the first germanium(II) hydroxide [LGeOH] (L = HC{(CMe)(2,6-iPr 2C6H3N)}2) by hydrolysis of the corresponding chloride. In the so
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 (2009/12/01)
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.