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- Frustrated_Lewis_pair abstract "In chemistry, a frustrated Lewis pair is a compound or mixture containing a Lewis acid and a Lewis base that, because of steric hindrance, cannot combine to form an adduct. Because of their "unquenched" reactivity, such systems are very reactive and are able to split the hydrogen molecule heterolytically, which makes them potentially useful as metal-free catalysts for hydrogenation reactions.In the scheme below, compound 1 has a frustrated Lewis pair: the lone pair on the phosphorus atoms cannot be donated to the boron atoms because of the large substituents on both atoms. However, when exposed to hydrogen at 1 atm, the zwitterionic compound 2 is formed. This hydrogen addition is reversible, and it is possible to transfer the activated hydrogen to a sterically hindered imine, which results in a catalytic cycle that produces the hydrogenated product, using only 0.05 equivalents of 1 as a catalyst.File:MetalfreehydrogenationPhosphineBorane.svg".
- Frustrated_Lewis_pair thumbnail MetalfreehydrogenationPhosphineBorane.svg?width=300.
- Frustrated_Lewis_pair wikiPageID "18579986".
- Frustrated_Lewis_pair wikiPageRevisionID "586181633".
- Frustrated_Lewis_pair hasPhotoCollection Frustrated_Lewis_pair.
- Frustrated_Lewis_pair subject Category:Acid-base_chemistry.
- Frustrated_Lewis_pair subject Category:Catalysts.
- Frustrated_Lewis_pair type Abstraction100002137.
- Frustrated_Lewis_pair type Activator114723079.
- Frustrated_Lewis_pair type Catalyst114723628.
- Frustrated_Lewis_pair type Catalysts.
- Frustrated_Lewis_pair type Matter100020827.
- Frustrated_Lewis_pair type Part113809207.
- Frustrated_Lewis_pair type PhysicalEntity100001930.
- Frustrated_Lewis_pair type Relation100031921.
- Frustrated_Lewis_pair type Substance100019613.
- Frustrated_Lewis_pair comment "In chemistry, a frustrated Lewis pair is a compound or mixture containing a Lewis acid and a Lewis base that, because of steric hindrance, cannot combine to form an adduct.".
- Frustrated_Lewis_pair label "Frustrated Lewis pair".
- Frustrated_Lewis_pair sameAs m.04g0pv3.
- Frustrated_Lewis_pair sameAs Q5506522.
- Frustrated_Lewis_pair sameAs Q5506522.
- Frustrated_Lewis_pair sameAs Frustrated_Lewis_pair.
- Frustrated_Lewis_pair wasDerivedFrom Frustrated_Lewis_pair?oldid=586181633.
- Frustrated_Lewis_pair depiction MetalfreehydrogenationPhosphineBorane.svg.
- Frustrated_Lewis_pair isPrimaryTopicOf Frustrated_Lewis_pair.
