Lewis acid: Difference between revisions
Jump to navigation
Jump to search
imported>David E. Volk (remove cats) |
imported>David E. Volk mNo edit summary |
||
| Line 1: | Line 1: | ||
{{subpages}} | {{subpages}} | ||
'''Lewis acids''' are imporant chemicals used to catalyze or | '''Lewis acids''' are imporant chemicals used to catalyze or promote reactions. A Lewis acid is a chemical that can accept a share of an electron pair that is donated by a [[Lewis base]]. Although [[Bronstad-Lowery acids]] are Lewis acids, most Lewis acids are not Bronstad-Lowery acids, that is, they do not give off a proton. A more complete discussion of Lewis acids and Lewis bases can be found at [[Lewis acid-base theory]]. Lewis acids can accept a share of an electron share either because they have an incomplete valence shell, as does AlCl<sub>3</sub> or BF<sub>3</sub> for example, or because the metal can be increase its valence, as can happen with SnCl<sub>4</sub>. | ||
Revision as of 09:32, 4 July 2009
Lewis acids are imporant chemicals used to catalyze or promote reactions. A Lewis acid is a chemical that can accept a share of an electron pair that is donated by a Lewis base. Although Bronstad-Lowery acids are Lewis acids, most Lewis acids are not Bronstad-Lowery acids, that is, they do not give off a proton. A more complete discussion of Lewis acids and Lewis bases can be found at Lewis acid-base theory. Lewis acids can accept a share of an electron share either because they have an incomplete valence shell, as does AlCl3 or BF3 for example, or because the metal can be increase its valence, as can happen with SnCl4.