反式更稳定，不是因为对称因素，很简单的理由：是因为顺式结构取代基的位阻（离得比较近）比反式的位阻高。
“Cis-trans isomerism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cis-trans%20isomerism. Accessed 17 Dec. 2024. Copy Citation Share Post the Definition of cis-trans isomerism to Facebook Facebook Share the Definition of cis-trans isomerism...
The cis-trans notation does not alwayscorrespond to the EZ isomer, which is an absolute stereochemical description. In general, the character isomer cancontain a non-rotating double bond or a ring structure in whichthe rotation of the bond is restricted or prevented. Cis and transisomers occur ...
网络释义 1. 顺反异构物 顺反异构物(cis-trans isomers)又称几何异构物(geometric isomers,但此种说法已不被IUPAC取用),属於立体异构物(ste… case.ntu.edu.tw|基于40个网页 2. 顺反异构体 几何异构体又名顺反异构体(cis-trans isomers)在空间关系上不是镜像,而且理化性质不同,各基团之间的距离也不同,因...
Cis-Trans Isomers Exhibit a Type of Stereoisomerism Where the Atoms Have Different Spatial Arrangements in 3-D Space. Learn about Cis-Trans Isomers with Examples.
However, stereoisomers crop up in many of the other structural types of organic chemistry. For example, in the alkenes, two versions of 2-butene exist. They are traditionally Read More stereoisomerism In hydrocarbon: Stereoisomerism Cis-trans isomers belong to a class of stereoisomers known as...
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Re:Cis/Trans Isomers « Reply #1 on: September 14, 2004, 12:27:44 AM » Cis and trans are actually rather imprecise ways of naming compounds and lead to a lot of confusion. Unfortunately it's part of the chemistry vernacular.Your first example doesn't make sense because it isn't...
Discrimination of cis–trans isomers by dinuclear metal cryptates at physiological pH: selectivity for fumarate vs. maleate 来自 学术范 喜欢 0 阅读量: 56 作者:GY Xie,J Long,TB Lu 摘要: Cryptand L (L = N[(CH2)(2)NHCH2(2,6-C10H6)CH2NH(CH2)(2)](3)N) and its dinuclear metal ...
答案选择C 环辛烯 原因就是只有环辛烯可以分离出顺式和反式两种结构，尤其是反式，在形成两个环时，不会产生很大的张力，而其他的环烯的反式结构由于折叠成双环的张力过大而无法形成环。下面是我搜索到的这道题的英文答案，仅供参考：此题来源于《新编有机化学习题集》