O-Chem 301B
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purine
jstoddar
5,122 views
The purine heterocycle is rotated in 3-d showing a planar aromatic ring structure. Next, the orbitals corresponding to the delocalized aromatic pi system (blue and red) ar...
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Simple Diels Alder Transition State
jstoddar
5,884 views
Rotated 3-d model from the Diels Alder transition state between 1,3-butadiene (CH2=CH-CH=CH2) and propenal (CH2=CH=CH-CH=O). The movement corresponds to the imaginary freq...
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Simple Diels Alder Reaction
jstoddar
8,351 views
Rotated 3-d model from the Diels Alder reaction of 1,3-butadiene (CH2=CH-CH=CH2) and propenal (CH2=CH=CH-CH=O)
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Oxetene
jstoddar
304 views
Oxetene is a conjugated molecule that contains 4 pi-electrons. However, the sp2-hybridized CH2 group prevents this molecule from being classified as aromatic or anti-aroma...
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Thiophene
jstoddar
875 views
Thiophene is your typical hetero-aromatic molecule that contains a sulfur as part of the ring. The molecule is rotated in 3-D space showing the blue and red lobes of the h...
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Tetralene - Antiaromatic
jstoddar
1,217 views
Tetralene is a flat, cyclicly conjugated molecule that contains 8 Huckel electrons making it anti-aromatic. The molecule is rotated in 3-D space while showing the blue and...
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Radiapentalene
jstoddar
455 views
This molecule is not cyclicly conjugated and thus not aromatic. The molecule is flat and as it is rotated in 3-D the highest occupied molecular orbital (HOMO) in red and b...
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Pyrimidine
jstoddar
2,477 views
Pyrimidine is an aromatic molecule, related to pyridine, but has an additional nitrogen in the ring. This molecule is rotated in 3-D, showing two lone pair electrons (grey...
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Isoquinoline
jstoddar
711 views
Isoquinoline, an aromatic molecule like naphthalene has a nitrogen in the ring system (like pyrrole). The grey orbital shows the lone pair electrons that are not part of t...
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imidazole
jstoddar
1,439 views
Imidazole, an aromatic molecule with 2 nitrogen atoms is rotated in 3-d space. The gray orbital depicts the lone pair of electrons not part of the Huckel pi-system. While...
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