OChem 05 - Newman Projections

How to draw Newman Projections
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• organic
• chemistry
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• newman
• projection
• gauche
• anti
• staggered
• butane
• carbon
• tetrahedral
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• eclipse
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[bulletformygizmo]

is it the gauche formation everytym there is 60 degrees between the 2 heaviest atoms? in this case fig 2? like is 60 degrees the set figure between the heaviest atoms that characterizes the gauche formation ??

[MathandScienceFTW]

@bulletformygizmo yes that is correct. 60 degrees is what is used for simplicity. Anytime the 2 bulky groups are between 0 and 180 degrees (or 180 and 360) they will be gauche. HOWEVER, when the rotation is exactly at 120 or 240 they are considered eclipsed. They are TOTALLY eclipsed when the bulky groups are RIGHT on top of each other (0 degrees).

[bulletformygizmo]

@MathandScienceFTW thank u soo much for ur help realy appreciate it u wer mre help then my lecturer,il be recommending ur vids to my classmates.thanks again,and thanks for replying,

[MathandScienceFTW]

@bulletformygizmo I REALLY appreciate that!!! Thank you :D

[spreal3030]

Very clear. Thank you!!

[MathandScienceFTW]

@spreal3030 you're welcome :)

[Melanie1502]

Wow thanks's so much!!

[NeftaliPR]

nice

[MoeHidan]

Thanks!



[ssj4newUser]

i like her so much but she only got 5 videos...:(

[djabfalo]

@7:02 there is a slight representation. The bond to the methyl group on top is not supposed to go to H3, but should go to C. So instead of saying CH3, it is conventionally right to say H3C. (that places the bond on Carbon.

[aaron2009ish]

Thank you! You know whats unfair, when this is in the ACS final but we didnt even cover it in class:(

[efuntola]

i can see the fifth carbons in there and i don't still get why its in there.

[ynkrock7]

@adijatsab Nope there is only four carbons there, the back and front carbon, and the two methyl groups on each.

[adijatsab]

I thought you were drawing butane, but the picture turned out to be pentane, didnt it?

[qyet121csx]

thanks, this vid helped quite a bit!