Timeline for Why aren't there any triangular molecules?
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| Sep 9, 2014 at 6:14 | comment | added | user137 | While ring strain may be phenomenological, I think it should be taught. The interactions of atoms and orbitals in tight rings does lead to a strained high energy structure, and opening the ring releases this energy, relieving the strain. It would be complicated to approach all those interactions from the ground up, the concept of ring strain wraps that up nicely. And with a good molecular model kit, you can "experience" ring strain by jamming a cyclopropane together. | |
| Sep 8, 2014 at 12:38 | comment | added | Martin - マーチン♦ | Unfortunately topics like this will always be taught as something that appears to be a law, without questioning the reasons, that underlie this concept. Most of steric repulsion, attraction and other effects can be described and explained by more advanced theories, i.e. electronic structure theory. For someone in school it might be appropriate to conclude with models like these, but if the underlying theory is not too far off it should be included as well. | |
| Sep 8, 2014 at 11:49 | comment | added | ashu | @Martin : But Ring Strain is the only reason that was explained to me in 12th grade. | |
| Sep 8, 2014 at 11:00 | comment | added | Martin - マーチン♦ | Ring strain is an awful concept. It is purely built on phenomenology as in "stuff that one could be expecting from hybrid orbital angles." It has only little more scientific justification than the VSEPR model. | |
| Sep 8, 2014 at 8:47 | history | edited | ashu | CC BY-SA 3.0 |
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| Aug 28, 2013 at 20:33 | comment | added | Aesin | You might want to comment on the actual underlying phenomenon behind ring strain, i.e. electron-electron repulsion. | |
| Aug 28, 2013 at 19:16 | history | edited | F'x | CC BY-SA 3.0 |
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| Aug 28, 2013 at 6:13 | history | answered | ashu | CC BY-SA 3.0 |