h26
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How do you the bit " Draw a diagram to suggets a 3d shape for the ring"
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charco
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How do you the bit " Draw a diagram to suggets a 3d shape for the ring"
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To do this you should have covered three dimensional representations in class.

For cyclic six membered rings there is a convention that involves drawing the molecule in either a "chair" or a "boat" conformation. These conformers allow the carbon (or nitrogen) atoms to adopt tetrahedral geometry and the chole structure is strain free.

Chair and boat mean nothing without a diagram. The chair conformer is the most stable for steric reasons.

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Kallisto
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How do you the bit " Draw a diagram to suggets a 3d shape for the ring"
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Good question. But as far as I understand you should draw a picture (sketch) in that way that a 3D shape is possible and makes sense in terms of the given structure.

I guess that the 3D (non-planar) shape has something to do with the bonds on the nitrogens. They must have an angle that non-planar structure can't exist.
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Kira Yagami
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Hi, this is F335 June 16, I did this paper

It's a horrible question tbh

Just wondering do you have access to the May/June 17 papers like F331-F335?
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Kallisto
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(Original post by Kira Yagami)
Hi, this is F335 June 16, I did this paper

It's a horrible question tbh

Just wondering do you have access to the May/June 17 papers like F331-F335?
True. The interrogation is tricky, I admit. But thanks to Charco, I get it. Sometimes the answer is easier than the question itself.
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