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[問題] Chem Optically active

welcome091017

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1^# 大中小發表於 2012-4-22 06:54 PM (第 1889 天) 只看該作者

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Chem Optically active

我想問係吾係有chiral centre就optically inactive 冇就active
有internal plane of symmetry就active 冇就inactive

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rickylok

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2^# 大中小發表於 2012-4-22 07:06 PM (第 1889 天) 只看該作者

我想問係吾係有chiral centre就optically inactive 冇就active<<<調轉呀！？
有internal plane of symmetry就active 冇就inactive<<<

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howardc64

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3^# 大中小發表於 2012-4-22 07:37 PM (第 1889 天) 只看該作者

有internal plane of symmetry好似係inactive. . .
請参考 meso compound. .

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heyheeha

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4^# 大中小發表於 2012-4-22 09:39 PM (第 1889 天) 只看該作者

Evidence of enantiomer,

1) the isomer is non-superimposable with its "mirror image" form
2) the isomer has no internal plane of symmetry
3) the two isomers can rotate the plane of polarization of the plane-polarized light into opposite spin (that's why we also call them optical isomer)

Note that if the enantiomer is maded up of 4 different groups with a central carbon, we called that carbon chiral centre.

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