502691-22-7Relevant academic research and scientific papers
Cyclic and polycyclic gallium-antimony compounds: Synthesis and crystal structures of [GaCl(PnPr2Ph)(SbSiiPr3)]2 and [(GaCl)4(SbSiiPr3)4 (PnPr2Ph)2]
Von Haenisch, Carsten,Scheer, Petra,Rolli, Birgit
, p. 3268 - 3271 (2002)
The reaction of [(DME)LiE(SiMe3)2] (E = As, Sb) with iPr3SiCl in DME yields the mixed silylated compounds iPr3SiE-(SiMe3)2 (1: E = As, 2: E = Sb). Compounds 1 and 2 were characterised by multinuclear NMR spectroscopy and mass spectrometry. The antimony compound 2 reacts with [GaCl3PnPr2Ph to give the cyclic compound [GaCl(PnPr2Ph)(SbSiiPr3)]2 (3). The polycyclic Ga-Sb compound [(GaCl)4(SbSiiPr3)4 (PnPr2Ph)2] (4) can be obtained from a solution of 3 in benzene. The central structural motif of 3 is a folded Ga2Sb2 four-membered ring. Compound 4 consists of a ladder-like Ga4Sb4 unit and is the first polycyclic Ga-Sb compound described. Compounds 3 and 4 were characterised by single crystal X-ray diffraction. The thermal decomposition of both compounds results in the formation of the binary phase GaSb.
