Stibine, trimethyl

Stibine, (o-bromophenyl)dichloro-, 1007 Stibine, chlorodimethyl-, 1007 Stibine, chlorodiphenyl-, 1007 Stibine, ethylenebis(diphenyl-, 1008 Stibine, ethylidynebis(dimethyl-, 1008 Stibine, o-phenylenebis(dimethyl-, 1008 Stibine, triethyl-, 1008 Stibine, trimethyl-, 1008 Stibine, triphenyl-, 1008 sulfide... 

Phenylstibine [58266-50-5] C H Sb, has been obtained by the reduction of phenyldiio do stihine [68972-61-2] CgH3l2Sb, (73) or phenyldichlorostibine [5035-52-9] 031130.2, (74) with lithium borohydride. It has also been prepared by the hydrolysis or methanolysis of phenylbis(trimethylsilyl)stibine [82363-95-9] C22H23Si2Sb (75). Diphenylstibine [5865-81-6] C22H22Sb, can be prepared by the interaction of diphenylchlorostibine [2629-47-2] C22H2QClSb, with either Hthium borohydride (76) or lithium aluminum hydride (77). It is also formed by hydrolysis or methanolysis of diphenyl (trimethylsilyl)stibine [69561-88-2] C H SbSi (75). Dimesitylstibine [121810-02-4] h.3.s been obtained by the protonation of lithium dimesityl stibide with trimethyl ammonium chloride (78). The x-ray crystal stmcture of this secondary stibine has also been reported. 

Tri alkylstibines are sensitive to oxygen, and in some cases they ignite spontaneously in air. Trimethyl stibine [594-10-5] C3H2Sb, may explode on... 

Stibine Oxides and Related Compounds. Both aUphatic and aromatic stibine oxides, R SbO, or their hydrates, R3Sb(OH)2, are known. Thus both dihydroxotrimethylantimony [19727-41-4], C3H2202Sb, and trimethyl stibine oxide [19727-40-3], C H OSb, have been prepared. The former maybe readily obtained by passing an aqueous solution of dichi orotrimethyl antimony [13059-67-1], C3H2Cl2 > through an anionic-exchange resin (151). 

Antimony Pentasulfide. See under Sulfides Antimony Selenide. See under Selenides Antimony Sulfides. See under Sulfides Antimony Telluride, See under Tellurides Antimony Trichloride. See under Chlorides Antimony Triethyl. Same as Triethylstibine Antimony Trimethyl. Same as Trimethyl-stibine... 

The receiver containing the ethereal solution of trimethyl-stibine is kept in ice, and the stopper is replaced with a gas inlet tube connected to a cylinder of chlorine. The inlet tube should extend at least 2 cm. below the level of the liquid in the flask. The mixture is stirred slowly and chlorine is bubbled in until the slurry turns yellowish in color. The precipitate of trimethylantimony dichloride which has formed during the chlorination is removed by filtration on a fritted Buchner funnel and washed several times with ethyl ether. The yield of crude product is 95.9 g. (64.2% of theoretical based upon SbCls). 

Trimethylstibine oxide, (CHg)3SbO, occurs when the sulphate, (CH3)3Sb.S04, is treated with barium hydroxide, filtered and evaporated. The residue is taken up in alcohol and the solution evaporated in the absence of carbon dioxide. The oxide forms a white, crystalline mass, very soluble in water or alcohol, insoluble in ether. It is also formed, together with other products, when an ether solution of trimethyl-stibine is slowly evaporated in air. It forms a double compound with the dichloride, (CH3)3SbO.(CH3)3SbCl2, crystallising in regular octa-hedra, soluble in water or alcohol. 

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