作业帮符合Hückel规则的烃类一定是芳香烃吗?符合Hückel规则是否一定是平面分子？邢其毅的书里说的比较琐碎，概念拿不太准
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符合Hückel规则的烃类一定是芳香烃吗?符合Hückel规则是否一定是平面分子？邢其毅的书里说的比较琐碎，概念拿不太准
符合Hückel规则的烃类一定是芳香烃吗?
符合Hückel规则是否一定是平面分子？
邢其毅的书里说的比较琐碎，概念拿不太准
符合Hückel规则的烃类一定是芳香烃吗?符合Hückel规则是否一定是平面分子？邢其毅的书里说的比较琐碎，概念拿不太准
Hückel规则中规定了必须是平面分子.
1,但是由于很多含杂原子的平面分子虽然符合Hückel规则但却不具有芳香性,所以Hückel规则有很多修正.
2,而还有一些不含杂原子且不符合Hückel规则的平面分子也具有芳香性.
3,有一些分子虽不是平面也不符合Hückel规则,但同样具有芳香性,比如富勒烯.
所以关于Hückel规则和芳香性的等同一定要具体问题分析,小心特例.
但是在大一大二这个范围内,Hückel规则还是比较适用的.
是的。。。大一有机化学里有的。。。
否
如[10]轮烯
由于氢原子之间的排斥，不具有芳香性
Cyclodecapentaene or [10]annulene is an annulene with molecular formula C10H10. This organic compound is a conjugated 10 pi electron cyclic system and accordi...
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否
如[10]轮烯
由于氢原子之间的排斥，不具有芳香性
Cyclodecapentaene or [10]annulene is an annulene with molecular formula C10H10. This organic compound is a conjugated 10 pi electron cyclic system and according to Huckel's rule it should display aromaticity. It is not aromatic, however, because of a combination of steric strain and angular strain. The planar all-cis isomer (1) (like benzene is) would have bond angles of 144° which creates large amounts of bond strain relative to the ideal 120° for sp2 hybridization. A boat-like all-cis conformation (2) relieves much of the angular strain but is still unstable with respect to the next planar trans, cis, trans, cis, cis isomer (3). Yet this isomer suffers from steric repulsion between the two internal hydrogen atoms. The nonplanar trans, cis, cis, cis, cis isomer (4) is the most stable of all the possible isomers.
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