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Henry Rzepa's Blog

Henry Rzepa's Blog
Chemistry with a twist
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Crystal_structure_miningCurly ArrowsReaction MechanismChemieEnglisch
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A reaction can be thought of as molecular dancers performing moves. A choreographer is needed to organise the performance into the ballet that is a reaction mechanism. Here I explore another facet of the Michael addition of a nucleophile to a conjugated carbonyl compound.

Curly ArrowsReaction MechanismChemieEnglisch
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In the previous post, I looked at the mechanism for 1,4-nucleophilic addition to an activated alkene (the Michael reaction). The model nucleophile was malonaldehyde after deprotonation and the model electrophile was acrolein (prop-2-enal), with the rate determining transition state being carbon-carbon bond formation between the two, accompanied by proton transfer to the oxygen of the […]

Reaction MechanismChemieEnglisch
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In 2013, I created an iTunesU library of 115 mechanistic types in organic and organometallic chemistry, illustrated using video animations of the intrinsic reaction coordinate (IRC) computed using a high level quantum mechanical procedure. Many of those examples first derived from posts here.

Interesting ChemistryChemieEnglisch
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In a welcome move, one of the American chemical society journals has published an encouragement to submit what is called FAIR data to the journal.. A reminder that FAIR data is data that can be Found (F), Accessed (A), Interoperated(I) and Re-used( R). I thought I might try to explore this new tool here.