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Pentamethylantimony can be made by reacting Sb(CH 3) 3 Br 2 with two equivalents of methyl lithium. [3] Another production route is to convert trimethylstibine to the trimethyl antimony dichloride, and then replace the chlorine with methyl groups with methyl lithium. [2] Sb(CH 3) 3 + Cl 2 → Sb(CH 3) 3 Cl 2 Sb(CH 3) 3 Cl 2 + 2LiCH 3 → Sb(CH ...
At 80 K, the figure of merit (z T) for Bi 1−x Sb x peaks at 6.5 × 10 −3 K −1 when x = 0.15. [4] Also, the Seebeck coefficient (the ratio of the potential difference between ends of a material to the temperature difference between the sides) at 80 K of Bi 0.9 Sb 0.1 is −140 μV/K, much lower than the Seebeck coefficient of pure bismuth ...
Antimony telluride is an inorganic compound with the chemical formula Sb 2 Te 3.As is true of other pnictogen chalcogenide layered materials, it is a grey crystalline solid with layered structure.
Antimony is a chemical element; it has symbol Sb (from Latin stibium) and atomic number 51. A lustrous grey metal or metalloid , it is found in nature mainly as the sulfide mineral stibnite (Sb 2 S 3 ).
Fluoroantimonic acid is a mixture of hydrogen fluoride and antimony pentafluoride, containing various cations and anions (the simplest being H 2 F + and Sb F − 6).This mixture is a superacid that, in terms of corrosiveness, is trillions of times stronger than pure sulfuric acid when measured by its Hammett acidity function.
Stibine (IUPAC name: stibane) is a chemical compound with the formula Sb H 3. A pnictogen hydride, this colourless, highly toxic gas is the principal covalent hydride of antimony, and a heavy analogue of ammonia. The molecule is pyramidal with H–Sb–H angles of 91.7° and Sb–H distances of 170.7 pm (1.707 Å).
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2 SbCl 5 + 5 H 2 O → Sb 2 O 5 + 10 HCl. The mono- and tetrahydrates are known, SbCl 5 ·H 2 O and SbCl 5 ·4H 2 O. This compound forms adducts with many Lewis bases. SbCl 5 is a soft Lewis acid and its ECW model parameters are E A = 3.64 and C A = 10.42. It is used as the standard Lewis acid in the Gutmann scale of Lewis basicity. [8] [9]