Phosphorus fluorides silicon halides

Nonmetal Halides. Vigorous or explosive reactions occur with phosphorus tribromide on addition of drops of water,20 phosphorus trichloride, phosphorus pentachloride,21 diselenium dichloride,22 sulfur dichloride, boron tribromide, sulfur dibromide,17 seleninyl bromide,23 phosphoryl chloride, sulfinyl fluoride, silicon tetrachloride, and silicon tetrafluoride.24... [Pg.536]

Other theoretical studies discussed above include investigations of the potential energy profiles of 18 gas-phase identity S 2 reactions of methyl substrates using G2 quantum-chemical calculations," the transition structures, and secondary a-deuterium and solvent KIEs for the S 2 reaction between microsolvated fluoride ion and methyl halides,66 the S 2 reaction between ethylene oxide and guanine,37 the complexes formed between BF3 and MeOH, HOAc, dimethyl ether, diethyl ether, and ethylene oxide,38 the testing of a new nucleophilicity scale,98 the potential energy surfaces for the Sn2 reactions at carbon, silicon, and phosphorus,74 and a natural bond orbital-based CI/MP through-space/bond interaction analysis of the S 2 reaction between allyl bromide and ammonia.17... [Pg.267]

Arsenic (III) fluoride solvates anions, such as fluoride ions to give [AsF4] as well as some covalent compoundsi " with the exception of alkali metal fluorides. The AsF4 -ion is isoelectronic with selenium(IV) fluoride, which has a distorted trigonal bipyramidal structure. Ionic compounds are usually insoluble. Various other halides are fluorinated such as phosphorus(III) chloride, phosphorus(V) chloridp, silicon(IV) chloride, thionyl chloride or tungsten hexachloride. Neutralization type reactions, such as... [Pg.93]