Racemic mixture - Wikipedia
网页In chemistry, a racemic mixture or racemate (/ reɪˈsiːmeɪt, rə -, ˈræsɪmeɪt / [1]) is one that has equal amounts of left- and right-handed enantiomers of a chiral molecule or salt. Racemic mixtures are rare in nature, but many compounds are …
外消旋化合物 - 百度百科
网页外消旋化合物 (racemic compound)指两种对映异构体以等量的形式共同存在于晶格中，形成均一的结晶。.
外消旋體 - 维基百科，自由的百科全书
网页外消旋化合物（英語： racemic compound）：左旋体与右旋体分子之间有较大亲和力，两种分子在 晶胞 中配对，形成计量学上的化合物晶体。 它们熔点多数高于纯旋光体，溶解度则低于纯旋光体。 外消旋混合物（英語： racemic mixture）：纯旋光体之间的亲和力更大，左旋体与右旋体分别形成晶体。 它们熔点通常低于纯旋光体，溶解度则高于纯旋光体。 外消旋固體溶液（英語： racemic solid solution）：纯旋光体之间，与对映体之间的亲和力比较 …
What's a Racemic Mixture? - Master Organic Chemistry
网页2012年5月23日 · Racemic mixtures are equimolar mixtures of enantiomers that are optically inactive. They can be made through adding together equal portions of enantiomers or (more commonly) as products of reactions that create a new chiral center in …
Racemic mixture | Definition, Example, & Facts | Britannica
网页racemic mixture, a mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. Each enantiomer rotates the plane of polarization of plane-polarized light through a characteristic angle, but, because the rotatory effect of each component exactly cancels that of ...
消旋体 - 百度百科
网页消旋体 （racemic modification），是指分子旋光性运动的一种形式，有外消旋体和内消旋体等。
5.8: Racemic Mixtures and the Resolution of Enantiomers
网页A racemic mixture is a 50:50 mixture of two enantiomers. Because they are mirror images, each enantiomer rotates plane-polarized light in an equal but opposite direction and is optically inactive. If the enantiomers are separated, the mixture is said to have been resolved. A common experiment in the laboratory component of introductory organic ...
5.8 Racemic Mixtures and the Resolution of Enantiomers
网页Such a mixture is called a racemate (rass-uh-mate), or racemic mixture, and is denoted by either the symbol (±) or the prefix d,l to indicate an equal mixture of dextrorotatory and levorotatory forms. Racemates show no optical rotation because the (+) rotation from one enantiomer exactly cancels the (−) rotation from the other.
Racemic Mixtures - ChemTalk
网页What is a Racemic Mixture? A racemic mixture or racemate is a mixture that contains an equal amount of two enantiomers. As light passes through the mixture, the enantiomers rotate the light equally but in opposite directions; this causes the mixture to …
5.9: Racemic Mixtures and the Resolution of Enantiomers
网页Such a mixture is called a racemate (rass -uh-mate), or racemic mixture, and is denoted by either the symbol (±) or the prefix d,l to indicate an equal mixture of dextrorotatory and levorotatory forms. Racemates show no optical rotation because the (+) rotation from one enantiomer exactly cancels the (−) rotation from the other.