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zakruti.com » Knowledge, science, education » Crash Course
Cyclohexanes: Crash Course Organic Chemistry #7

Cyclohexanes: Crash Course Organic Chemistry #7

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Rating: 4.0; Vote: 1
Hexagons appear all over the natural world from honeycomb to bubbles, and they even appear in organic chemistry! In this episode of Crash Course Organic Chemistry, we're learning all about cyclohexanes, including how rings pucker to relieve strain, the boat and chair conformations, and how ring flips can switch substituents from axial to equatorial. We'll practice a lot of chair flips, but don't flip an actual chair just yet! Lots of practice is key to understanding organic chemistry's favorite manifestation of the hexagon. Episode
Date: 2022-04-04

Comments and reviews: 10


ok I'll say it - cyclohexane is not a proper hexagon, exactly because of the puckering, that makes it 3d. Depending on perspective and conformation it can also look like a rhombus (chair) or a triangle (boat. If you made a graphene-like sheet with fused cyclohexane rings it would be all crinkled unlike the flat graphene with fused benzene rings.
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Crash Course in 2012: -This is water. Water is good. -
Crash Course in 2020: -The methyl group moves into the axial position as carbon-1 pushes up and stays above the plane. The ethyl group has a lot less axial strain, therefore this a stable structure. -

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There was a time, when I really want to flip the chair, while learning this, years ago. Now it has passed, and I meet this again in more entertaining and interesting way, I want to flip another chair. So jealous of this generation chem. student. --
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At 9: 19, did you mis draw the bottom newman projection? When I visually turn the chair confirmation I see the green H as going to the bottom left and the CH3 going to the top left
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Thanks for the motivation to get out my molecular modelling kit again! It's been a while since I've played with it, and now I'm having fun flipping chairs -
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Hey! I love your show. Would you guys ever consider making videos on great composers like Mozart soon? I feel like that would be cool to learn.
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Wow that one was complicated. I love this and really appreciate people that are able to know and utilize this immense amount of science and math -
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Is there an error in the start of the video with the numbering going counterclockwise, or is this the in compliance with the iupac rules?
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So where does the energy for the chair flips come from? It's can't be doing it for free? How does it get the energy for doing such?
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Mam i was waiting for ur upload. when u wil upload videos so that i can revise previous one do upload more videos soon plz
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