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Topic: Boiling point of cis-trans isomers!  (Read 6030 times)

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Boiling point of cis-trans isomers!
« on: January 29, 2013, 10:29:52 AM »
Which one do you think has a higher boiling point? trans or cis -1,2-cyclopentanediol? explain your reason please.
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Offline discodermolide

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Re: Boiling point of cis-trans isomers!
« Reply #1 on: January 29, 2013, 11:01:46 AM »
Which do you think has the higher BPt. and you explain the reason first. (Forum policy)

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Re: Boiling point of cis-trans isomers!
« Reply #2 on: January 30, 2013, 04:54:44 AM »
So I suppose , trans has the higher boiling point. Since there might be some internal hydrogen bonding in the cis isomer. Am I right?
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Offline discodermolide

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Re: Boiling point of cis-trans isomers!
« Reply #3 on: January 30, 2013, 05:35:43 AM »
No, in general the cis isomer has the higher BPt. See
http://www.chemguide.co.uk/basicorg/isomerism/geometric.html
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Offline Babcock_Hall

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Re: Boiling point of cis-trans isomers!
« Reply #4 on: January 30, 2013, 10:03:09 AM »
Quote from: no username inserted on January 30, 2013, 04:54:44 AM
So I suppose , trans has the higher boiling point. Since there might be some internal hydrogen bonding in the cis isomer. Am I right?
I do not see why internal hydrogen bonding would have much of an effect.  What about intermolecular forces?
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