Comments on: Cycloalkanes – Ring Strain In Cyclopropane And Cyclobutane https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/ Thu, 07 Dec 2023 22:03:39 +0000 hourly 1 https://wordpress.org/?v=6.6.2 By: Cyclohexane Conformations | Straight A Mindset https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-679037 Thu, 07 Dec 2023 22:03:39 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-679037 […] the last post, we saw that ring strain of cyclopropane and cyclobutane were 27 and 26 kcal/mol respectively. […]

]]> By: Cycloalkanes – Ring Strain In Cyclopropane And Cyclobutane | Straight A Mindset https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-679035 Thu, 07 Dec 2023 22:02:35 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-679035 […] Summary: Ring Strain In Cyclopropane and Cyclobutane […]

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-586228 Fri, 16 Oct 2020 19:16:44 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-586228 In reply to Marya Lieberman.

Hi Marya – fixed, thank you for the typo alert! Glad you find the site useful

]]> By: Marya Lieberman https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-584670 Sun, 06 Sep 2020 15:57:29 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-584670 Typo alert: That should be 65 kcal/mol (not cal/mol) for the c-c bond strength in cyclopropane.

Also, I love this site–your explanations are so clear and well organized.

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-563874 Thu, 12 Sep 2019 20:42:24 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-563874 In reply to Estaar.

The answer is at least partially, “Walsh orbitals”. The bonds between carbons are “bent” somewhat in that the electron density is outside the straight line that we draw between carbons.

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-550400 Thu, 21 Mar 2019 16:05:00 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-550400 In reply to Jack.

Fixed, thanks Jack.

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-550399 Thu, 21 Mar 2019 16:04:28 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-550399 Cyclohexane. Carbocations on cyclopropane will be considerably destabilized.

]]> By: Estaar https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-536607 Tue, 14 Aug 2018 01:22:52 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-536607 how does cyclobutane balance angle strain and torsional strain

]]> By: Sonal https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-531368 Mon, 23 Apr 2018 05:17:43 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-531368 In reply to Sonal.

Small correction in my last statement, the chair conformation is very stable with ~0 kJ/mol strain.

]]> By: Sonal https://www.masterorganicchemistry.com/2014/04/03/cycloalkanes-ring-strain-in-cyclopropane-and-cyclobutane/#comment-531320 Sat, 21 Apr 2018 19:20:55 +0000 https://www.masterorganicchemistry.com/?p=8093#comment-531320 In reply to Jack.

In cyclopropane due to bulky structure, the hexagonal shape is not co-planar! In fact, it shifts into a ‘chair’ shape, which makes it more unstable and therefore has higher strain. Hope this helps :)

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