asymmetric atom

简明释义

不对称原子

英英释义

例句

1.In organic chemistry, a molecule with an asymmetric atom (不对称原子) can exhibit chirality.

在有机化学中，具有一个asymmetric atom (不对称原子) 的分子可以表现出手性。

2.Pharmaceuticals often rely on the properties of an asymmetric atom (不对称原子) for their effectiveness.

药物的有效性通常依赖于asymmetric atom (不对称原子) 的特性。

3.The presence of an asymmetric atom (不对称原子) in a compound often leads to different optical isomers.

化合物中存在asymmetric atom (不对称原子) 通常会导致不同的光学异构体。

4.When synthesizing new materials, identifying an asymmetric atom (不对称原子) can be crucial for achieving desired properties.

在合成新材料时，识别asymmetric atom (不对称原子) 对于实现所需特性至关重要。

5.The asymmetric atom (不对称原子) in this molecule allows it to interact differently with biological systems.

该分子中的asymmetric atom (不对称原子) 使其能够与生物系统以不同方式相互作用。

作文

In the realm of chemistry and molecular biology, the concept of an asymmetric atom (不对称原子) plays a crucial role in understanding the structure and function of various compounds. An asymmetric atom is defined as a carbon atom that is bonded to four different substituents, resulting in non-superimposable mirror images known as enantiomers. These enantiomers can exhibit vastly different chemical properties and biological activities, making the study of asymmetric atoms essential in fields such as pharmaceuticals and biochemistry.To illustrate the significance of asymmetric atoms, consider the example of thalidomide, a drug that was initially marketed as a sedative in the late 1950s. The drug exists as two enantiomers due to the presence of an asymmetric atom. One enantiomer was effective in treating morning sickness in pregnant women, while the other caused severe birth defects. This tragic case highlights the importance of understanding chirality, which is directly related to the presence of asymmetric atoms in molecules.Furthermore, the study of asymmetric atoms extends beyond pharmacology. In organic chemistry, chemists often seek to synthesize compounds with specific stereochemical configurations, relying on asymmetric atoms to achieve desired outcomes. Techniques such as asymmetric synthesis allow for the selective production of one enantiomer over another, thereby enhancing the efficiency and safety of chemical processes.The implications of asymmetric atoms are also evident in nature. Many biological molecules, including amino acids and sugars, contain asymmetric atoms, which contribute to their unique functions. For instance, the presence of asymmetric atoms in amino acids leads to the formation of proteins with specific three-dimensional structures, ultimately determining their roles in biological systems.In conclusion, the concept of an asymmetric atom (不对称原子) is fundamental to the understanding of molecular chirality and its implications in various scientific fields. From drug development to natural biological processes, asymmetric atoms play a pivotal role in shaping the behavior of molecules. As research continues to advance, the exploration of asymmetric atoms will undoubtedly lead to new discoveries and innovations that enhance our understanding of chemistry and biology.

在化学和分子生物学领域，不对称原子的概念在理解各种化合物的结构和功能方面发挥着至关重要的作用。不对称原子被定义为一个碳原子与四个不同的取代基相连，导致形成不可叠加的镜像，称为对映体。这些对映体可能表现出截然不同的化学性质和生物活性，使得研究不对称原子在药物和生物化学等领域至关重要。为了说明不对称原子的重要性，可以考虑沙利度胺的例子，这是一种在20世纪50年代末作为镇静剂首次上市的药物。由于存在不对称原子，该药物以两种对映体的形式存在。一种对映体在治疗孕妇晨吐方面有效，而另一种则导致严重的出生缺陷。这一悲惨案例突显了理解手性的重要性，而手性直接与分子中不对称原子的存在有关。此外，不对称原子的研究不仅限于药理学。在有机化学中，化学家们通常寻求合成具有特定立体化学构型的化合物，依赖于不对称原子来实现所需的结果。诸如不对称合成等技术允许选择性地生产一种对映体而非另一种，从而提高化学过程的效率和安全性。不对称原子的影响在自然界中也显而易见。许多生物分子，包括氨基酸和糖，含有不对称原子，这使它们具有独特的功能。例如，氨基酸中不对称原子的存在导致蛋白质形成特定的三维结构，最终决定它们在生物系统中的作用。总之，不对称原子（不对称原子）的概念是理解分子手性及其在各科学领域影响的基础。从药物开发到自然生物过程，不对称原子在塑造分子的行为方面发挥着关键作用。随着研究的不断推进，对不对称原子的探索无疑将带来新的发现和创新，增强我们对化学和生物学的理解。