levorotatory compound

简明释义

左旋化合物

英英释义

例句

1.Many natural products contain levorotatory compounds that have therapeutic properties.

许多天然产品含有具有治疗特性的左旋化合物。

2.The pharmaceutical industry often focuses on levorotatory compounds for drug development.

制药行业通常关注于药物开发中的左旋化合物。

3.The levorotatory compound was found to be more effective than its dextrorotatory counterpart.

研究发现该左旋化合物比其右旋对应物更有效。

4.In the lab, we learned how to identify a levorotatory compound using polarimetry.

在实验室里，我们学习了如何使用偏光仪识别左旋化合物。

5.The chemist synthesized a new levorotatory compound that showed promising results in reducing inflammation.

化学家合成了一种新的左旋化合物，在减少炎症方面显示出良好的效果。

作文

In the realm of chemistry, understanding the properties and behaviors of different compounds is essential for various applications, ranging from pharmaceuticals to food science. One important category of compounds that chemists often encounter is the levorotatory compound. A levorotatory compound refers to a substance that rotates plane-polarized light counterclockwise. This property is a result of the compound's molecular structure and is crucial for identifying and classifying chiral molecules.Chirality is a fundamental concept in chemistry, where certain molecules exist in two forms that are mirror images of each other, known as enantiomers. These enantiomers can have drastically different biological activities, making it imperative for scientists to distinguish between them. For instance, one enantiomer of a drug may be therapeutically active, while its mirror image could be ineffective or even harmful. Therefore, recognizing whether a compound is levorotatory or dextrorotatory (which rotates light clockwise) is vital in drug development and other chemical applications.The determination of whether a compound is levorotatory can be achieved through polarimetry, a technique that measures the angle of rotation of polarized light as it passes through a solution of the compound. By using a polarimeter, chemists can quantify the optical activity of a substance and ascertain its specific rotation, which is expressed in degrees. A positive value indicates a dextrorotatory compound, while a negative value signifies a levorotatory compound. This measurement not only aids in the identification of the compound but also provides insights into its concentration in solution.One of the most well-known levorotatory compounds is L-alanine, an amino acid that plays a significant role in protein synthesis. The levorotatory nature of L-alanine allows it to interact with other biomolecules in a specific manner, showcasing the importance of chirality in biological systems. In contrast, D-alanine, the dextrorotatory counterpart, does not participate in protein synthesis in the same way, highlighting the necessity of distinguishing between these two forms.Furthermore, the significance of levorotatory compounds extends beyond the laboratory. In the food industry, certain flavor compounds exhibit optical activity, influencing the taste and aroma of products. For example, the natural flavoring compound, (-)-limonene, is a levorotatory compound found in citrus fruits, contributing to their characteristic scent. Understanding the optical properties of such compounds allows food scientists to enhance flavors and create appealing products.In conclusion, the concept of levorotatory compounds is integral to the field of chemistry, particularly in understanding the behavior of chiral molecules. The ability to identify and classify these compounds through techniques like polarimetry has far-reaching implications in various industries, including pharmaceuticals and food science. As research continues to advance, the exploration of levorotatory compounds will undoubtedly lead to new discoveries and innovations, emphasizing the importance of chirality in our world.

在化学领域，理解和掌握不同化合物的性质和行为对于各种应用至关重要，从制药到食品科学。化学家们经常遇到的一个重要类别是左旋化合物。左旋化合物是指能够使平面偏振光逆时针旋转的物质。这一特性是由化合物的分子结构所决定的，对于识别和分类手性分子至关重要。手性是化学中的一个基本概念，某些分子以两种形式存在，它们是彼此的镜像，被称为对映体。这些对映体可能具有截然不同的生物活性，因此科学家必须区分它们。例如，一种药物的一个对映体可能具有治疗活性，而其镜像可能无效甚至有害。因此，识别一个化合物是左旋还是右旋（即顺时针旋转光线）在药物开发和其他化学应用中至关重要。确定一个化合物是否为左旋可以通过偏光仪来实现，这是一种测量偏振光经过化合物溶液时旋转角度的技术。通过使用偏光仪，化学家可以定量测量物质的光学活性，并确定其特定旋转度，以度数表示。正值表示右旋化合物，而负值则表明是左旋化合物。这一测量不仅有助于识别化合物，还提供了关于其在溶液中浓度的见解。最著名的左旋化合物之一是L-丙氨酸，这是一种在蛋白质合成中起着重要作用的氨基酸。L-丙氨酸的左旋特性使其能够以特定方式与其他生物分子相互作用，展示了手性在生物系统中的重要性。相反，其右旋对应物D-丙氨酸并不以相同的方式参与蛋白质合成，突显出区分这两种形式的必要性。此外，左旋化合物的重要性超出了实验室。在食品工业中，某些香味化合物表现出光学活性，影响产品的味道和香气。例如，天然香料化合物（-）-柠檬烯是一种存在于柑橘类水果中的左旋化合物，贡献了其特有的气味。理解这些化合物的光学特性使食品科学家能够增强风味并创造出吸引人的产品。总之，左旋化合物的概念对于化学领域至关重要，特别是在理解手性分子的行为方面。通过偏光仪等技术识别和分类这些化合物的能力在制药和食品科学等各个行业具有深远的影响。随着研究的不断进展，对左旋化合物的探索无疑将带来新的发现和创新，强调了手性在我们世界中的重要性。