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Open AccessArticle

Synthesis and Structural Characterization of Two New Main Group Element Carboranylamidinates

Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, 39106 Magdeburg, Germany
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Inorganics 2019, 7(3), 41; https://doi.org/10.3390/inorganics7030041
Received: 26 February 2019 / Revised: 11 March 2019 / Accepted: 11 March 2019 / Published: 13 March 2019
(This article belongs to the Special Issue Metal Complexes Containing Boron Based Ligands)
Two new main group element carboranylamidinates were synthesized using a bottom-up approach starting from o-carborane, ortho-C2B10H12 (1, = 1,2-dicarba-closo-dodecaborane). The first divalent germanium carboranylamidinate, GeCl[HLCy] (3, [HLCy] = [o-C2B10H10C(NCy)(NHCy)], Cy = cyclohexyl), was synthesized by treatment of GeCl2(dioxane) with 1 equiv. of in situ-prepared Li[HLCy] (2a) in THF and isolated in 47% yield. In a similar manner, the first antimony(III) carboranylamidinate, SbCl2[HLiPr] (4, [HLiPr] = [o-C2B10H10C(NiPr)(NHiPr)]), was obtained from a reaction of SbCl3 with 1 equiv. of Li[HLiPr] in THF (56% yield). The title compounds were fully characterized by analytical and spectroscopic methods as well as single-crystal X-ray diffraction. Both compounds 3 and 4 are monomeric species in the solid state, and the molecular geometries are governed by a stereo-active lone pair at the metal centers. View Full-Text
Keywords: boron; carborane; carboranylamidinate; germanium; antimony; crystal structure boron; carborane; carboranylamidinate; germanium; antimony; crystal structure
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Liebing, P.; Harmgarth, N.; Zörner, F.; Engelhardt, F.; Hilfert, L.; Busse, S.; Edelmann, F.T. Synthesis and Structural Characterization of Two New Main Group Element Carboranylamidinates. Inorganics 2019, 7, 41.

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