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Simple Synthesis and Use of a Nickel Alkene Isomerization Catalyst. An Advanced Lab in Inorganic/Organometallic Chemistry
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Abstract
In this laboratory experiment students synthesize a precatalyst, [Ni(P(OEt)3)4]. The precatalyst is protonated insitu to make [HNi(P(OEt)3)4]+, a nickel hydride, which is an active catalyst for alkene isomerization. Students produce the nickel hydride in the presence of 1-heptene at 0 ° C and monitor the extent of heptene isomerization by gas chromatography as a function of time. Students use this data to assess the effectiveness of their catalyst. The catalytic mechanism involves common reactions in organometallic chemistry such as: ß-hydride elimination and alkene insertion. This experiment combines synthetic and physical techniques to introduce students to synthetic and mechanistic organometallic chemistry.
Keywords (Audience):
Upper-Division UndergraduateKeywords (Domain):
Inorganic ChemistryKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
CatalysisCiting Articles
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This article has been cited by 8 ACS Journal articles (5 most recent appear below).

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Fredy Speiser and Pierre Braunstein, Lucien SaussineOrganometallics2004 23 (11), 2633-2640The new phosphinopyridine Ni(II) complexes 912 catalyze ethylene oligomerization with activities up to 60000 mol of C2H4/((mol of Ni) h) (11) in the presence of only 6 equiv of AlEtCl2. The selectivities for C4 olefins were as high as 92% (precatalyst ...
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- Received: August 03, 2009
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