Wilkinson's catalyst
E664885
Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Wilkinson's catalyst canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7441172 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Wilkinson's catalyst Context triple: [Geoffrey Wilkinson, notableWork, Wilkinson's catalyst]
-
A.
Adams catalyst
Adams catalyst is a platinum-based hydrogenation catalyst widely used in organic chemistry for reducing a variety of functional groups under mild conditions.
-
B.
Ziegler–Natta catalysts
Ziegler–Natta catalysts are a class of organometallic catalysts used industrially to produce stereoregular polyolefins such as polyethylene and polypropylene under relatively mild conditions.
-
C.
Corey–Chaykovsky reagent
The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
-
D.
Eschenmoser
Eschenmoser is a Swiss surname most notably associated with Albert Eschenmoser, a prominent organic chemist known for his pioneering work in the synthesis of complex natural products and studies on the origin of life.
-
E.
Buchwald–Hartwig amination
The Buchwald–Hartwig amination is a palladium-catalyzed cross-coupling reaction that forms carbon–nitrogen bonds by coupling aryl (or vinyl) halides with amines, widely used in the synthesis of pharmaceuticals and fine chemicals.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Wilkinson's catalyst Target entity description: Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
-
A.
Adams catalyst
Adams catalyst is a platinum-based hydrogenation catalyst widely used in organic chemistry for reducing a variety of functional groups under mild conditions.
-
B.
Ziegler–Natta catalysts
Ziegler–Natta catalysts are a class of organometallic catalysts used industrially to produce stereoregular polyolefins such as polyethylene and polypropylene under relatively mild conditions.
-
C.
Corey–Chaykovsky reagent
The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
-
D.
Eschenmoser
Eschenmoser is a Swiss surname most notably associated with Albert Eschenmoser, a prominent organic chemist known for his pioneering work in the synthesis of complex natural products and studies on the origin of life.
-
E.
Buchwald–Hartwig amination
The Buchwald–Hartwig amination is a palladium-catalyzed cross-coupling reaction that forms carbon–nitrogen bonds by coupling aryl (or vinyl) halides with amines, widely used in the synthesis of pharmaceuticals and fine chemicals.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
coordination complex
ⓘ
homogeneous catalyst ⓘ organorhodium compound ⓘ |
| belongsToClass |
hydrogenation catalysts
ⓘ
transition metal complexes ⓘ triphenylphosphine complexes ⓘ |
| catalystType | rhodium-based catalyst ⓘ |
| catalyzesReactionType |
hydrogen addition to C=C bonds
ⓘ
hydrogen addition to C≡C bonds ⓘ |
| chemicalFormula | RhCl(PPh3)3 ⓘ |
| containsElement |
carbon
ⓘ
chlorine ⓘ hydrogen ⓘ phosphorus ⓘ rhodium ⓘ |
| discoveredBy | Geoffrey Wilkinson NERFINISHED ⓘ |
| discoveryDecade | 1960s ⓘ |
| fieldOfUse |
homogeneous catalysis
ⓘ
organometallic chemistry ⓘ |
| hasAlternativeName |
RhCl(PPh3)3
NERFINISHED
ⓘ
Wilkinson catalyst NERFINISHED ⓘ |
| hasCASNumber | 14694-95-2 ⓘ |
| hasCentralMetal | Rh(I) ⓘ |
| hasColor | deep red ⓘ |
| hasCoordinationNumber | 4 ⓘ |
| hasElectronicConfigurationDescription | d8 square planar complex ⓘ |
| hasGeometry | square planar ⓘ |
| hasIUPACName | chloridotris(triphenylphosphane)rhodium(I) ⓘ |
| hasLigand |
chloride
ⓘ
triphenylphosphine ⓘ |
| hasMechanismFeature |
migratory insertion
ⓘ
oxidative addition of H2 ⓘ reductive elimination ⓘ |
| hasMolecularity | mononuclear ⓘ |
| hasOxidationStateOfRhodium | +1 ⓘ |
| hasPhaseInUse | homogeneous solution phase ⓘ |
| hasSpinState | low-spin ⓘ |
| isAirSensitive | true ⓘ |
| isInsolubleIn | water ⓘ |
| isMoistureSensitive | true ⓘ |
| isSolubleIn |
benzene
ⓘ
chloroform ⓘ dichloromethane ⓘ toluene ⓘ |
| namedAfter | Geoffrey Wilkinson NERFINISHED ⓘ |
| usedFor |
catalytic hydrogenation of alkenes
ⓘ
catalytic hydrogenation of alkynes ⓘ homogeneous hydrogenation reactions ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Wilkinson's catalyst Description of subject: Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.