dextrorotatory

简明释义

英[ˌdekstrəʊˈrəʊtət(ə)rɪ]美[ˌdekstrəˈrotəˌtɔri]

adj. 右旋的；右旋性的

英英释义

单词用法

同义词

反义词

例句

1.The enantiomer that rotates the plane to the right is referred to as the dextrorotatory.

使平面向右旋转的对映体，称为右旋对映体。

2.The enantiomer that rotates the plane to the right is referred to as the dextrorotatory.

使平面向右旋转的对映体，称为右旋对映体。

3.Chemists often refer to dextrorotatory compounds when discussing optical activity in organic molecules.

化学家在讨论有机分子的光学活性时，常常提到右旋化合物。

4.Many amino acids are dextrorotatory, which is crucial for their biological functions.

许多氨基酸是右旋的，这对它们的生物功能至关重要。

5.In the lab, we tested the dextrorotatory nature of the sugar sample using a polarimeter.

在实验室，我们使用偏振仪测试了糖样品的右旋性质。

6.The dextrorotatory isomer of the drug proved to be more effective than its counterpart.

该药物的右旋异构体证明比其对应物更有效。

7.The compound was found to be dextrorotatory, meaning it rotates plane-polarized light to the right.

该化合物被发现是右旋的，这意味着它将平面偏振光向右旋转。

作文

In the realm of chemistry, understanding the properties of various compounds is crucial for scientists and researchers. One such property that plays a significant role in the study of stereochemistry is optical activity. This term refers to the ability of certain substances to rotate the plane of polarized light. Among the classifications of optical activity, we encounter terms like dextrorotatory, which is derived from Latin roots meaning 'to turn to the right.' A dextrorotatory compound is one that rotates polarized light in a clockwise direction. This characteristic is essential for distinguishing between enantiomers, which are molecules that are mirror images of each other but cannot be superimposed. To illustrate the importance of dextrorotatory substances, let us consider the example of sugars. D-glucose, a common sugar found in many foods, is known to be dextrorotatory. When polarized light passes through a solution of D-glucose, it will rotate the light to the right, indicating its dextrorotatory nature. In contrast, L-glucose, the mirror image of D-glucose, is levorotatory, meaning it rotates light in the opposite direction. This difference in optical activity not only helps chemists identify and differentiate between these two forms of glucose but also has implications in fields like pharmaceuticals, where the efficacy of a drug can depend on its specific stereoisomer. The concept of dextrorotatory substances extends beyond sugars and includes amino acids and other organic compounds. For instance, L-alanine is levorotatory, while D-alanine is dextrorotatory. The distinction between these forms is vital in biochemistry, as proteins are made up of specific amino acids that can have different biological activities based on their stereochemistry. Understanding whether a compound is dextrorotatory or levorotatory allows researchers to predict how these molecules will behave in biological systems. Furthermore, the determination of whether a compound is dextrorotatory or not is typically performed using polarimetry, an analytical technique that measures the angle of rotation of polarized light as it passes through a sample. By employing this technique, scientists can quantify the degree of optical rotation and thus categorize the substance accordingly. This measurement is not only fundamental in academic research but also has practical applications in industries such as food and beverage, where the optical activity of certain ingredients may affect product quality and safety. In conclusion, the term dextrorotatory encapsulates a vital aspect of stereochemistry that is essential for the understanding of molecular behavior. Through its application in various scientific fields, particularly in distinguishing between enantiomers, the concept of dextrorotatory compounds proves to be indispensable. As we continue to explore the intricate world of chemistry, the significance of terms like dextrorotatory will remain at the forefront of our endeavors, guiding us toward new discoveries and innovations.

在化学领域，理解各种化合物的性质对科学家和研究人员至关重要。光学活性是一个在立体化学研究中发挥重要作用的术语。这个术语指的是某些物质旋转偏振光平面的能力。在光学活性的分类中，我们遇到了像dextrorotatory这样的术语，它源于拉丁语，意为“向右转”。dextrorotatory化合物是指能够顺时针旋转偏振光的化合物。这一特性对于区分手性异构体至关重要，手性异构体是指互为镜像但无法重叠的分子。为了说明dextrorotatory物质的重要性，让我们考虑糖的例子。D-葡萄糖是一种常见的糖，存在于许多食品中，已知其为dextrorotatory。当偏振光通过D-葡萄糖溶液时，它会向右旋转光线，表明其dextrorotatory特性。相反，L-葡萄糖是D-葡萄糖的镜像，其为左旋光性，意味着它以相反的方向旋转光线。这种光学活性的差异不仅帮助化学家识别和区分这两种形式的葡萄糖，而且在制药等领域也有影响，因为药物的有效性可能取决于其特定的立体异构体。dextrorotatory物质的概念不仅限于糖，还包括氨基酸和其他有机化合物。例如，L-丙氨酸是左旋光性，而D-丙氨酸则是dextrorotatory。这些形式之间的区别在生物化学中至关重要，因为蛋白质是由特定的氨基酸组成，这些氨基酸的生物活性可能基于其立体化学的不同而有所不同。了解一个化合物是dextrorotatory还是左旋光性使研究人员能够预测这些分子在生物系统中的行为。此外，判断一个化合物是否为dextrorotatory通常使用偏振仪，这是一种分析技术，用于测量偏振光通过样品时的旋转角度。通过采用这一技术，科学家可以量化光学旋转的程度，从而相应地对物质进行分类。这一测量不仅在学术研究中是基础的，在食品和饮料等行业也具有实际应用，因为某些成分的光学活性可能影响产品的质量和安全性。总之，dextrorotatory这一术语概括了立体化学的一个重要方面，对于理解分子行为至关重要。通过在各个科学领域的应用，特别是在区分手性异构体方面，dextrorotatory化合物的概念被证明是不可或缺的。随着我们继续探索复杂的化学世界，像dextrorotatory这样的术语的重要性将始终处于我们努力的前沿，引导我们迈向新的发现和创新。