2008年7月25日 · If an anti-aromatic ring can become non aromatic by conforming to nonplanar, it will. The NH, O, and S you refer to are probably pyrrole, furan, and thiphene. In furan, for example, the carbon atoms only contribute 4 electrons to the pi structure, which is very unstable.

2009年8月6日 · it has 8 pi electrons, and like stated above, fits the criteria of 4n, to be anti-aromatic. to avoid this state of anti-aromaticity (less stable then expected), it becomes non-planar, so it can be more stable then it would be in the anti-aromatic state. cyclooctatetraene can do this because it can fold, however other 6 carbon compounds that have 4n electrons and are planar …

2009年7月11日 · I have so much trouble determining what is aromatic and anti-aromatic. What I know is that to be anti-aromatic is has to have 4n pi electrons, and aromatic is 4n+2 pi electrons. That correct? I don't really know how to figure out whether or not it …

2009年6月19日 · The rules for anti-aromaticity are basically the same as aromaticity except instead of 4n +2 pi electrons you want 4n. - needs to be conjugated - needs to be planar

2009年7月1日 · Topscore has #98 on the first test asking which of the choices are anti-aromatic. One of the choices was an 8 membered ring with 4 double bones evenly...

2004年5月6日 · The Kaplan white book (same as the blue book) classifies the following as anti-aromatic An 8 carbon ring with 4 alternating double bonds (8pi electrons) However, topscore says this molecule isn't anti aromatic who is correct?

2008年3月31日 · are'nt Anti-aromatic, aromatic and NONe aromatic all different? Or is non aromatic the same as anti-aromatic? Topscore and Achiever are making me go cooko

2015年7月10日 · We have found that the molecule is NON-AROMATIC. The molecule seems to avoid being anti-aromatic by not allowing significant electron delocalization....a condition of anti-aromaticity. The pi electrons from the carbon bonds and the electron lone pair on the oxygen atoms do not overlap to a significant degree. This allows the molecule a way to ...

2011年8月3日 · shouldnt this be anti-aromatic since it has 8 pi electrons? achiever says its non-aromatic

2008年7月31日 · I see 8 electrons in this molecule (4n+2) n is fraction.. fulfill anti aromatic condition but key says it is not planar. how do you know it is not planar... Forums Communities Pre-Med Medical Resident Audiology Dental Optometry Pharmacy Physical Therapy Podiatry Psychology Rehab Sci Veterinary