594-10-5Relevant articles and documents
Common features in the crystal structures of the compounds bis(dimethylstibanyl)oxane and -sulfane, and the minerals valentinite and stibnite (grauspiessglanz)
Breunig,Lork,Roesler,Becker,Mundt,Schwarz
, p. 1595 - 1607 (2000)
Bis(dimethylstibanyl)oxane (1) and -sulfane (2), the two simplest organoelement species with an Sb-E-Sb fragment (E = O, S), were prepared by alkaline hydrolysis of bromodimethylstibane and by oxidation of tetramethyldistibane with sulfur [18], respectively. As shown by an x-ray structure analysis of compound 1 (m.p. 1,2121, a = 675.9(2), b = 803.1(2), c = 1666.8(4) pm at -70 ± 2°C; Z = 4; R1 = 0.042), the molecules (O-Sb 198.8 and 209.9 pm, Sb-O-Sb 123.0°) adopt a syn-anti conformation in the solid state and are arranged in zigzag chains along [010] via weak intermolecular O··Sb interactions (258.5 pm, Sb-O··Sb 117.8°, O··Sb-O 173.5°) making use, however, of only one Me2Sb moiety. Primary and secondary bond lengths and angles agree very well with corresponding values published for valentinite, the orthorhombic modification of antimony(III) oxide [3]. Bis(dimethylstibanyl)sulfane (2) (m.p. 29 to 31 °C) crystallizes in the uncommon space group P6522 (a = 927.8(3), c= 1940.9(7) pm at -100 ± 2°C; Z = 6; R1 =0.021). Owing to coordination numbers of (1 + 1) and (2 + 2) for both Me2Sb groups and the sulfur atom, respectively, molecules with an approximate syn-syn conformation (S-Sb 249.8 pm, Sb-S-Sb 92.35°) build up a three-dimensional net of double helices which are linked together by Sb · · S contacts (316.4 pm). These parameters shed more light onto the rather complicated structure and bonding situation in stibnite (antimony(III) sulfide [4]). The molecular packing of compound 2 is compared with the structures of relevant inorganic solids, especially with that of ss-quartz [37].
Morgan, G. T.,Yarsley, V. E.
, p. 184 - 190 (1925)
Reactions of certain antimony(III, V) methyl derivatives with aliphatic alcohols in the presence of copper(II)
Usyatinskii,Gushchin,Dodonov
, p. 1109 - 1112 (2007/10/03)
Trimethylantimony and copper diacetate (or copper dipelargonate) in a 1:2 molar ratio substitute the hydrogen atom of the hydroxy group in aliphatic alcohols to form methyl alkyl ethers (yield up to 46%). The activity of alcohols toward methylation depends on the structure of the organic radical of the alcohol. Reactions of trimethylantimony diacetate or dibenzoate with alcohols in the presence of catalytic amounts of copper yield methyl alkyl ethers in 10-12% yields.
The assessment of some Sb-Te single-source compounds for MOCVD applications
Dickson, Ron S.,Heazle, Kerryn D.
, p. 189 - 198 (2007/10/02)
The new compounds Et2SbTeEt, Me2SbTeEt, Et2SbTeiPr and Et2AsTeEt have been prepared by reactions of Et4Sb2, Me4Sb2 or Et4As2 with iPr2Te2 or Et2Te2.An alternative route to Et2SbTeEt involved the reaction of Et2SbBr with EtTeLi.The compounds are light sensitive, and some of them cannot be obtained pure because of facile radical decomposition or reverse dissociation to the corresponding R4E2 and R'2Te2.Thermal degradation of Et2SbTeEt in a hydrogen stream under conventional MOCVD condition gives a metal deposit containing Sb and Te in the ratio 1.6:1.The related compound Et2SbTeSbEt2 reacts with H2 at room temperature to give Te metal and presumably HSbEt2. Keywords: Antimony; Arsenic; Tellurium; MOCVD
