cis isomer

简明释义

顺式异构体

英英释义

例句

1.The cis isomer 顺式异构体 of butenedioic acid has a lower melting point than its trans counterpart.

丁二烯二酸的顺式异构体的熔点低于其反式异构体。

2.The chemical properties of the cis isomer 顺式异构体 are often different from those of the trans isomer.

顺式异构体的化学性质通常与反式异构体不同。

3.The cis isomer 顺式异构体 of a molecule can lead to different physical properties, such as boiling points.

一个分子的顺式异构体可能导致不同的物理性质，例如沸点。

4.In nature, many fatty acids exist as cis isomers 顺式异构体, which influence their biological functions.

在自然界中，许多脂肪酸以顺式异构体的形式存在，这影响了它们的生物功能。

5.Researchers are studying the effects of cis isomers 顺式异构体 in drug design to improve efficacy.

研究人员正在研究顺式异构体在药物设计中的作用，以提高疗效。

作文

In the study of organic chemistry, understanding the concept of isomerism is crucial for grasping the behavior and properties of different compounds. Among various types of isomers, the term cis isomer refers to a specific arrangement of atoms within a molecule that can significantly influence its physical and chemical characteristics. To illustrate this point, let’s explore the definition and implications of cis isomer in greater detail.Isomers are compounds that have the same molecular formula but differ in the arrangement of atoms. This variation can lead to distinct properties, making isomerism an essential topic in chemistry. The cis isomer is one type of geometric isomerism, where two similar or identical groups are positioned on the same side of a double bond or a ring structure. This contrasts with the trans isomer, where these groups are located on opposite sides.The significance of cis isomer lies in its impact on the compound's physical properties. For instance, consider the case of 2-butene, which has both cis and trans isomers. The cis isomer of 2-butene has a higher boiling point compared to its trans counterpart due to the increased polarity resulting from the proximity of the similar groups. This difference in polarity can lead to variations in solubility, reactivity, and overall stability.Moreover, the biological implications of cis isomers cannot be overlooked. Many natural compounds, such as fatty acids, exhibit isomerism that affects their function in biological systems. For example, certain unsaturated fatty acids exist predominantly in the cis isomer form, which influences their role in cell membrane structure and fluidity. The presence of cis isomers in biological membranes can enhance flexibility, allowing cells to adapt to varying temperatures and conditions.In addition to their biological relevance, cis isomers are also significant in pharmaceuticals. The configuration of a drug molecule can determine its efficacy and safety. For instance, the cis isomer of a particular medication may bind more effectively to its target receptor than its trans counterpart, leading to enhanced therapeutic effects. Therefore, understanding the differences between cis and trans isomers is vital for drug design and development.To conclude, the concept of cis isomer is fundamental in organic chemistry, with far-reaching implications in various fields, including biology and medicine. By recognizing how the arrangement of atoms can affect the properties and behaviors of molecules, chemists can better predict reactions and design compounds with desired characteristics. The study of isomers, particularly cis isomers, highlights the intricate relationship between molecular structure and function, underscoring the importance of isomerism in scientific research and application.

在有机化学的研究中，理解异构现象的概念对于掌握不同化合物的行为和性质至关重要。在各种类型的异构体中，术语cis isomer指的是分子内原子的特定排列，这可以显著影响其物理和化学特性。为了更好地说明这一点，让我们更详细地探讨cis isomer的定义及其影响。异构体是指具有相同分子式但原子排列不同的化合物。这种变化会导致明显不同的性质，使异构现象成为化学中的一个重要主题。cis isomer是一种几何异构体，其中两个相似或相同的基团位于双键或环结构的同一侧。这与trans异构体形成对比，后者的这些基团位于相对两侧。cis isomer的重要性在于其对化合物物理性质的影响。例如，考虑2-丁烯的情况，它具有cis和trans异构体。2-丁烯的cis isomer由于相似基团的接近而产生的极性增加，相较于其trans异构体具有更高的沸点。这种极性的差异可能导致溶解度、反应性和整体稳定性的变化。此外，cis isomers在生物学上的意义也不容忽视。许多天然化合物，如脂肪酸，表现出异构现象，这影响它们在生物系统中的功能。例如，某些不饱和脂肪酸主要以cis isomer形式存在，这影响其在细胞膜结构和流动性中的作用。生物膜中cis isomers的存在可以增强柔韧性，使细胞能够适应不同的温度和条件。除了生物相关性之外，cis isomers在制药领域也很重要。药物分子的构型可以决定其有效性和安全性。例如，某种药物的cis isomer可能比其trans异构体更有效地结合其靶受体，从而导致增强的治疗效果。因此，理解cis和trans异构体之间的差异对于药物设计和开发至关重要。总之，cis isomer的概念在有机化学中是基础性的，在生物学和医学等多个领域具有深远的影响。通过认识原子的排列如何影响分子的性质和行为，化学家可以更好地预测反应并设计具有所需特性的化合物。对异构体的研究，特别是cis isomers，突显了分子结构与功能之间复杂的关系，强调了异构现象在科学研究和应用中的重要性。