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Topic: Steroisomers, and dibromocubanes  (Read 2366 times)

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Offline Bjc51192

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Steroisomers, and dibromocubanes
« on: January 26, 2013, 09:29:18 PM »




Are my answers correct?

I appreciate the help
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Offline Sophia7X

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Re: Steroisomers, and dibromocubanes
« Reply #1 on: January 26, 2013, 11:31:38 PM »
2d


Remember, enantiomers are mirror images.
Are cis and trans isomers really mirror images of each other?
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Offline Bjc51192

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Re: Steroisomers, and dibromocubanes
« Reply #2 on: January 26, 2013, 11:33:15 PM »
Thanks, I thought it would be due to the change in connectivity in space. Or am I confusing concepts?
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Offline Sophia7X

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Re: Steroisomers, and dibromocubanes
« Reply #3 on: January 26, 2013, 11:38:04 PM »
I suppose you mean different orientation, since different connectivity implies constitutional isomerism.

Cis trans isomers are diastereomers since they are not mirror images of each other (if you reflect the cis isomer, you cannot get the trans isomer).
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Offline Bjc51192

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Re: Steroisomers, and dibromocubanes
« Reply #4 on: January 27, 2013, 12:00:37 AM »
Alright I see where I got confused. Thanks for clearing that up for me Sophia.
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Offline Dan

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Re: Steroisomers, and dibromocubanes
« Reply #5 on: January 27, 2013, 05:10:40 AM »
2a is also incorrect.
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Offline curiouscat

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Re: Steroisomers, and dibromocubanes
« Reply #6 on: January 27, 2013, 06:09:34 AM »
Looks nice in SMILES..

C12([Br])C3C4C1C5C2C3C45([Br])
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Offline Bjc51192

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Re: Steroisomers, and dibromocubanes
« Reply #7 on: January 27, 2013, 02:20:12 PM »
Hey Dan, Why would 2a be incorrect. SHouldnt only the dash / wedges change positions in order to be considered an enantiomers?

Also Cat not quite sure what you mean?
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Offline sjb

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Re: Steroisomers, and dibromocubanes
« Reply #8 on: January 27, 2013, 03:02:24 PM »
How does a differ from b, fundamentally, e.g. replace the ammonium ion with fluorine, the hydrogen with bromine and so on?
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