asymmetric atom

简明释义

不对称原子

英英释义

例句

1.The presence of an asymmetric atom (不对称原子) in a compound often leads to the formation of enantiomers.

化合物中存在一个不对称原子（不对称原子）通常会导致对映体的形成。

2.When synthesizing drugs, chemists must consider the asymmetric atom (不对称原子) to ensure the desired biological activity.

在合成药物时，化学家必须考虑不对称原子（不对称原子），以确保所需的生物活性。

3.In chiral molecules, each asymmetric atom (不对称原子) contributes to the overall chirality of the compound.

在手性分子中，每个不对称原子（不对称原子）都对化合物的整体手性产生贡献。

4.In organic chemistry, a molecule with an asymmetric atom (不对称原子) can exhibit optical activity.

在有机化学中，具有一个不对称原子（不对称原子）的分子可以表现出光学活性。

5.A molecule with multiple asymmetric atoms (不对称原子) may have several stereoisomers.

一个具有多个不对称原子（不对称原子）的分子可能具有多个立体异构体。

作文

In the world of chemistry and molecular biology, the term asymmetric atom refers to a carbon atom that is bonded to four different groups or atoms. This unique characteristic of an asymmetric atom leads to the formation of chiral molecules, which are molecules that cannot be superimposed on their mirror images. The concept of chirality is crucial in various scientific fields, including pharmaceuticals, as the two enantiomers (mirror images) of a chiral molecule can have vastly different biological activities. Understanding the significance of asymmetric atoms is essential for chemists and biochemists alike. For example, consider the drug thalidomide, which was originally marketed as a sedative. It was later discovered that one enantiomer of the drug was effective in treating morning sickness in pregnant women, while the other caused severe birth defects. This tragic case highlights the importance of recognizing and studying asymmetric atoms in drug design and development. The presence of asymmetric atoms in a molecule can also influence its physical properties, such as boiling point, melting point, and solubility. Molecules with asymmetric atoms often exhibit different behaviors in chiral environments, leading researchers to explore their applications in areas like asymmetric synthesis, where the goal is to produce one enantiomer preferentially over the other. This method can significantly enhance the efficiency of synthesizing desired compounds. Furthermore, the study of asymmetric atoms extends beyond organic chemistry into fields like materials science and nanotechnology. For instance, the design of new materials with specific chiral properties can lead to advancements in optics and electronics. Chiral materials can interact with polarized light in unique ways, making them valuable in the development of optical devices. In summary, the concept of the asymmetric atom is fundamental to understanding chirality and its implications in various scientific disciplines. The ability of an asymmetric atom to create chiral molecules has profound effects on drug efficacy, physical properties, and material science. As research continues to advance, the exploration of asymmetric atoms will undoubtedly lead to new discoveries and innovations that could shape the future of chemistry and related fields.

在化学和分子生物学的世界中，术语不对称原子是指与四个不同的基团或原子结合的碳原子。这个不对称原子的独特特性导致了手性分子的形成，这些分子无法与其镜像重叠。手性的概念在包括制药在内的各种科学领域中至关重要，因为手性分子的两个对映体（镜像）可能具有截然不同的生物活性。 理解不对称原子的重要性对于化学家和生物化学家来说都是必不可少的。例如，考虑一下药物沙利度胺，它最初被作为镇静剂推向市场。后来发现，该药物的一个对映体在治疗孕妇晨吐方面有效，而另一个则导致严重的出生缺陷。这个悲惨的案例突显了在药物设计和开发中识别和研究不对称原子的重要性。 分子中不对称原子的存在也会影响其物理性质，如沸点、熔点和溶解度。具有不对称原子的分子通常会在手性环境中表现出不同的行为，促使研究人员探索它们在不对称合成中的应用，目标是优先合成一种对映体而非另一种。这种方法可以显著提高所需化合物合成的效率。 此外，不对称原子的研究不仅限于有机化学，还扩展到材料科学和纳米技术等领域。例如，具有特定手性特性的材料设计可以推动光学和电子学的发展。手性材料可以以独特的方式与偏振光相互作用，使它们在光学设备的开发中具有价值。 总之，不对称原子的概念是理解手性及其在各科学学科中影响的基础。不对称原子创造手性分子的能力对药物效能、物理性质和材料科学产生深远影响。随着研究的不断推进，不对称原子的探索无疑将导致新的发现和创新，可能会塑造化学及相关领域的未来。