氟化砷(Ⅴ)制备装置如下:
将砷装入镍或氧化铝舟中,通入干燥的氟气使之成为氟化物。随后,用液氮冷却的捕集器将其液化收集。在捕集器中冷凝下来的生成物经过几次蒸馏提纯后,可以储存在钢制圆筒中。
合成制备方法如图所示的氟化砷(Ⅴ)制备装置:
用砷及氟制备As₄+10F→24AsF₅。
将砷装入镍或氧化铝舟中,通入干燥的氟气使之成为氟化物。随后,使用液氮冷却的捕集器将其液化收集。在捕集器中冷凝下来的生成物经过几次蒸馏提纯后,可以储存在钢制圆筒中。
用途简介(此处为空)
Alternative and, in some cases, improved syntheses of the salts MX3(As/Sb)F6 (M = S, Se) and SCl3(SbCl6/AlCl4) are described. In addition, the synthesis of SeCl3SbF6 is reported. The compounds were characterized by FT–Raman spectroscopy and the X-ray crystal structures of SeCl3AsF6 (also 77Se NMR) and a new phase of SBr3SbF6 were determined. Crystals of SeCl3AsF6 and SBr3SbF6 are monoclinic, space group P21/c with [values for SBr3SbF6 in brackets] a = 7.678(1) [8.137(1)] Å, b = 9.380(3) [9.583(2)] Å, c = 11.920(3) [12.447(2)] Å, β = 98.19(2)° [97.36(1)]°, V = 849.72(3) [962.6(3)] Å3,z = 4, Dx = 2.925 [3.502] Mg m−3, R = 0.0525 [0.055], and Rw = 0.0554 [0.060] for 1151 [1472] observed reflections. Key words: MX3+ salts, FT–Raman spectroscopy, X-ray crystal structures of SeCl3AsF6, SBr3SbF6, and preparation of SeCl3SbF6.