Antimony -chloride SbCl

Hydrochloric acid digestion takes place at elevated temperatures and produces a solution of the mixed chlorides of cesium, aluminum, and other alkah metals separated from the sUiceous residue by filtration. The impure cesium chloride can be purified as cesium chloride double salts such as cesium antimony chloride [14590-08-0] 4CsCl SbCl, cesium iodine chloride [15605 2-2], CS2CI2I, or cesium hexachlorocerate [19153 4-7] Cs2[CeClg] (26). Such salts are recrystaUized and the purified double salts decomposed to cesium chloride by hydrolysis, or precipitated with hydrogen sulfide. Alternatively, solvent extraction of cesium chloride direct from the hydrochloric acid leach Hquor can be used. 

Antimony chloride Sb + 3CP —> SbCl. This compound is sometimes called butter of antimony. ... 

CHS. CO.NH. CsH4. Na 0(Cr0sH) violently explodes when pressed by a spatula or by the action of cold ammonia(Ref 1). The -ombination of its chloride with antimony chloride, 2CH, CO NH.C6H4NaCl + SbCl melts ca 94° with slight decompn (Ref 2)... 

Antimony chloride, such as 50% SbCl, in glacial acid, or 25% SbClj in CCI4... 

Antimony Chlorides. Two compds are of interest Antimony Trichloride(Buttet of Antimony), SbCl raw 228.13, col cryst solid, mp 73.4, bp 219-23, d 3.14 sol in coned HCl in org sol vs insol in w or dil HCI, It is prepd by the reaction of Sb on a limited amt of Cl or by dissolving the sulfide in coned HCI, distilling the excess acid, and purifying the chloride by sublimation. The compd is very hygr and is hydrolyzed to Antimony Oxychloride SbOCl, used as a smoke-prpducing agent Antimony Pentachlcride SbCJ mw 299.05, col liq, yel when impute, fr p 2.8 , bp 140°... 

Creating Antimony Trichloride (SbC ), which is a colorless, transparent liquid or white deliquescent solid. The trihalidation of antimony only commences when the Regulus moves into abundance. A pentachloride, (SbCls) coexists with the trichloride. The pentachloride sublimates at 4°C and depresses the melting point of our Antimony Chloride from 73°C to about... 

Changes in the position of the most intense M—Cl band in a series of antimony chloride species, including SbClg, SbCl , Me2SbCl3, McgSbClj, and SbCa, have been discussed in terms of the effect of the lone pair and the methyl group on bond lengths. The chemical shift in the Sb Mossbauer... 

A third method of estimating solvent basicity is provided by the donor number concept 14 ). The donor number of a solvent is the enthalpy of reaction, measured in kcal per mole, between the solvent and a Lewis add such as antimony (V) chloride. (Other Lewis acids, such as iodine or trimethyltin chloride, may be used, but the scale most often reported is that for SbCl5.) Available values for the SbCls donor number have been included in Table 1. Plots of the Walden product versus solvent basicity (A//SbC1 ) for several solvents are shown for lithium, sodium, and potassium ions in Fig. 10 and for the tetraalkylammon-... 

A brownish-purple solid salt, T SbCls, made by reacting thianthrene with antimony(V) chloride at room temperature in chloroform (62BCJ1137, 62JCS4963 67BCJ2539), was shown, by comparison with a methylene chloride solution of the salt, to have the radical as free in the solid as in solution (69BCJ548). Antimony(V) chloride was used to oxidize a thianthrene-containing polymer, —[T—C(Ph)=C(Ph) presumably... 

Antimony pentachloride also unites with ammonia. Two products are formed by passing ammonia gas into cold antimony pentachloride, namely, triammino-antimony pentachloride, [Sb(NH3)3]Cl3, and tetranunino-antimony pentachloride, [Sb(NH3)1]Cl5.1 Triammino-antimony pentachloride is a red substance which decomposes on heating, with formation of a sublimate of composition 3NH4Cl.SbCl5. Tetram-mino-antimony pentachloride is a white volatile substance which decomposes into antimony ammonium chloride. NH4Cl.SbCls, on treatment with hydrochloric acid. 

The reaction of SbCl3 with [(PNR)2(NRLi THF)2] leads to a polycyclic cage complex of the formula [(PNR)2(NR)2 Sb]Cl where antimony is bonded to three nitrogen and one chlorine atom. Antimony in a square planar environment of four nitrogen atoms exists in porphyrins and related macrocycles. Sb-N bonds also exist in antimony azides. The mixed chloride diazide SbCl(N3)2 is formed from NaNs and SbCfr at room temperature. ... 

Antimony pentachloride, SbCh, is a liquid (mp 4°C, bp 140 °C dec ), which can be obtained by reaction of SbCls with elemental chlorine. Sohd SbCls exists in two modifications above 54.1 °C, it is trigonal bipyramidal, below this temperature, it changes reversibly into a double chlorine-bridged dimer. SbCls decomposes at 140 °C with formation of SbCls and CI2. It is a Lewis acid with a strong tendency to interact with a ligand (L) to give octahedral complexes LSbCls. Reactions with chloride ion donors lead to ionic compounds with SbCle" anions and unusual cations. Examples are shown in equations (10) and (11). 

Methyl sulfonic acid reacts with antimony(V) chloride and water to yield Cl3Sb0(0H)(02S(0)CH3)SbCl3, a binuclear complex with bridging sulfonato groups. Binuclear Sb(V) complexes are also formed from SbCls and diphenylphospho-ric acid or benzylphosphonic acid alkyl ester in water. ... 

Despite this they should be considered as possible alternatives in cases where more familiar methods fail. Amongst this group of activators are p-toluenesulfonyl chloride, trifluoromethanesulfonic anhy-dride, - silver tetrafluoroborate, molybdenum oxide, phosphorous pentoxide, trichloromethyl chloroformate, 2-fluoro-l-methylpyridiniumsulfonate, chlorosulfonyl isocyanate, antimony penta-chloride (for which an X-ray structure of the DMSO-SbCls complex was obtained) and phenyl dichlo-rophosphate. ... 

Antimony(V) chloride (SbQj) and molybdenum(V) chloride (MoCls) can react spontaneously with alkenes to give predominantly the corresponding c/s-1,2-dichlorides (equation 11). The reaction probably proceeds through a successive insertion and reductive elimination sequence. The chlorination of butadiene with SbCls and copper(II) chloride results preferentially in the formation of (Z)- and ( )-1,4-dichloro adducts, while the reaction with chlorine gives an 1 1 mixture of 1,2- and 1,4-adducts, as shown in Table 2 and equation (12). The formation of (Z)-l,4-dichloro-2-butene may be ascribed to a transition state as shown in Scheme 3. 

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