double bond

简明释义

双键接头

英英释义

例句

1.A double bond (双键) can lead to geometric isomerism in certain organic molecules.

在某些有机分子中，double bond（双键）可以导致几何异构现象。

2.In organic chemistry, a molecule with a double bond (双键) between carbon atoms is more reactive than one with only single bonds.

在有机化学中，碳原子之间有一个double bond（双键）的分子比仅有单键的分子更具反应性。

3.The presence of a double bond (双键) in fatty acids can influence their physical properties.

脂肪酸中存在的double bond（双键）可以影响它们的物理性质。

4.When we discuss alkenes, we refer to the double bond (双键) that characterizes these compounds.

当我们讨论烯烃时，我们提到的就是这些化合物特征性的double bond（双键）。

5.Understanding the behavior of a double bond (双键) is crucial for predicting reaction mechanisms.

理解double bond（双键）的行为对于预测反应机制至关重要。

作文

In the realm of chemistry, the term double bond refers to a type of chemical bond where two pairs of electrons are shared between two atoms. This is in contrast to a single bond, where only one pair of electrons is shared. The formation of a double bond occurs when atoms share four electrons, resulting in a stronger and shorter bond compared to a single bond. This concept is crucial in understanding the structure and stability of various molecules, especially organic compounds. For instance, in ethylene (C2H4), the two carbon atoms are connected by a double bond, which significantly influences the molecule's reactivity and properties.The presence of a double bond in a molecule can lead to geometric isomerism, where the arrangement of atoms differs around the bond. This phenomenon is particularly important in biological systems, as it can affect the function of molecules such as fatty acids. Unsaturated fats, which contain one or more double bonds, have different physical properties compared to saturated fats, influencing their role in nutrition and health.Beyond chemistry, the idea of a double bond can also be metaphorically applied to human relationships. In a personal context, a double bond might represent a deep connection between two individuals, characterized by mutual trust, understanding, and support. Just like in chemistry, where a double bond strengthens the relationship between atoms, a strong emotional bond can enhance the connection between people. This type of bond often requires effort and commitment from both parties, similar to how atoms must align and share electrons to form a stable double bond.In conclusion, the concept of a double bond transcends its scientific definition. It serves as a powerful analogy for understanding connections, whether they are molecular or personal. Recognizing the significance of a double bond in both chemistry and relationships can deepen our appreciation for the complexities of interactions in the natural world and in our lives. By fostering these double bonds in our relationships, we can create a supportive network that enriches our experiences and helps us navigate life's challenges together.

在化学领域，术语双键指的是一种化学键，其中两个原子之间共享两对电子。这与单键形成的情况相反，单键只共享一对电子。双键的形成发生在原子共享四个电子时，导致比单键更强且更短的结合。这一概念对于理解各种分子的结构和稳定性至关重要，特别是有机化合物。例如，在乙烯（C2H4）中，两个碳原子通过双键连接，这显著影响了分子的反应性和性质。分子中存在的双键可以导致几何异构现象，即原子在键周围的排列不同。这种现象在生物系统中尤其重要，因为它可以影响分子的功能，例如脂肪酸。含有一个或多个双键的不饱和脂肪与饱和脂肪相比，具有不同的物理特性，从而影响其在营养和健康中的作用。超越化学，双键的概念也可以隐喻地应用于人际关系。在个人背景下，双键可能代表两个个体之间的深厚联系，其特征是相互信任、理解和支持。就像在化学中，双键增强原子之间的关系一样，强大的情感纽带可以增强人们之间的联系。这种类型的纽带通常需要双方的努力和承诺，类似于原子必须对齐并共享电子才能形成稳定的双键。总之，双键的概念超越了其科学定义。它作为一个强有力的类比，用于理解连接，无论是分子还是个人。在化学和人际关系中认识到双键的重要性，可以加深我们对自然世界和生活中互动复杂性的欣赏。通过培养这些双键，我们可以创建一个支持网络，丰富我们的经历，并帮助我们共同应对生活的挑战。