multiple bond

简明释义

多重键

英英释义

例句

1.The presence of a multiple bond in organic compounds often affects their reactivity and stability.

有机化合物中存在的多重键通常会影响它们的反应性和稳定性。

2.In chemistry, a molecule can have a multiple bond that involves two or more pairs of electrons shared between atoms.

在化学中，一个分子可以有一个多重键，涉及两个或多个电子对在原子之间共享。

3.Ethylene is a simple hydrocarbon that contains a multiple bond between its carbon atoms.

乙烯是一种简单的碳氢化合物，其碳原子之间包含一个多重键。

4.When drawing Lewis structures, it is important to recognize where a multiple bond should be placed.

在绘制路易斯结构时，识别多重键应该放置的位置是很重要的。

5.In molecular biology, understanding the role of multiple bonds can help in predicting molecular interactions.

在分子生物学中，理解多重键的作用可以帮助预测分子间的相互作用。

作文

In the realm of chemistry, the concept of a multiple bond is crucial for understanding molecular structures and their properties. A multiple bond refers to a type of bond between two atoms where more than one pair of electrons is shared. This typically occurs in the form of double bonds or triple bonds, which are essential in determining the reactivity and stability of compounds. For example, in organic chemistry, carbon often forms multiple bonds with other carbon atoms or with elements like oxygen and nitrogen. Double bonds consist of one sigma bond and one pi bond, while triple bonds contain one sigma bond and two pi bonds. The presence of multiple bonds can significantly affect the geometry of molecules. For instance, ethylene (C2H4) has a double bond between its carbon atoms, which results in a planar structure, whereas acetylene (C2H2) features a triple bond that leads to a linear arrangement. The geometric implications of multiple bonds are vital in predicting how molecules will interact with one another. Moreover, the existence of multiple bonds plays a pivotal role in the properties of materials. For example, the strength and stability of a molecule can be enhanced by the presence of a double or triple bond. This is particularly evident in the case of unsaturated fats, which contain multiple bonds and have different physical properties compared to saturated fats. The chemical reactivity of these substances is also influenced by their multiple bonds, making them more prone to undergoing addition reactions. In addition to their importance in organic chemistry, multiple bonds are also significant in inorganic chemistry. Transition metals often engage in the formation of multiple bonds with ligands, resulting in complex structures that exhibit unique properties. These interactions are key in catalysis, where transition metal complexes with multiple bonds can facilitate various chemical reactions efficiently. Understanding multiple bonds is not only essential for chemists but also for those in related fields such as biochemistry and materials science. In biochemistry, for instance, the structure of DNA and proteins is heavily influenced by the presence of multiple bonds. The ability of these molecules to undergo conformational changes is often linked to the nature of their bonding. Similarly, in materials science, the design of new polymers and materials frequently relies on the manipulation of multiple bonds to achieve desired mechanical and thermal properties. In conclusion, the concept of multiple bonds is fundamental in understanding the behavior of molecules across various branches of chemistry. Their influence extends beyond mere bonding; they are integral to the stability, reactivity, and overall characteristics of chemical compounds. As we continue to explore the intricacies of chemical interactions, a solid grasp of multiple bonds will undoubtedly enhance our comprehension of both simple and complex systems in the world around us.

在化学领域，multiple bond的概念对于理解分子结构及其性质至关重要。multiple bond指的是两个原子之间的一种类型的键，其中共享的不止一对电子。这通常以双键或三键的形式出现，这对于确定化合物的反应性和稳定性是必不可少的。例如，在有机化学中，碳通常与其他碳原子或氧、氮等元素形成multiple bonds。双键由一个σ键和一个π键组成，而三键则包含一个σ键和两个π键。multiple bonds的存在可以显著影响分子的几何形状。例如，乙烯（C2H4）在其碳原子之间具有双键，这导致了平面结构，而乙炔（C2H2）则具有三键，导致线性排列。multiple bonds的几何影响对于预测分子之间的相互作用至关重要。此外，multiple bonds的存在在材料的性质中也发挥着关键作用。例如，分子的强度和稳定性可以通过双键或三键的存在得到增强。这在不饱和脂肪的情况下尤为明显，不饱和脂肪含有multiple bonds，与饱和脂肪相比具有不同的物理性质。这些物质的化学反应性也受到其multiple bonds的影响，使它们更容易发生加成反应。除了在有机化学中的重要性外，multiple bonds在无机化学中也很重要。过渡金属通常与配体形成multiple bonds，导致具有独特性质的复杂结构。这些相互作用在催化中至关重要，其中带有multiple bonds的过渡金属络合物可以有效地促进各种化学反应。理解multiple bonds不仅对化学家至关重要，对生物化学和材料科学等相关领域的人士同样重要。例如，在生物化学中，DNA和蛋白质的结构在很大程度上受到multiple bonds存在的影响。这些分子发生构象变化的能力通常与其键合性质相关。同样，在材料科学中，新聚合物和材料的设计往往依赖于对multiple bonds的操控，以实现所需的机械和热性能。总之，multiple bonds的概念在理解各个化学分子行为中是基础性的。它们的影响超越了单纯的键合；它们是化学化合物稳定性、反应性和整体特征的核心。随着我们继续探索化学相互作用的复杂性，牢固掌握multiple bonds无疑将增强我们对周围世界中简单和复杂系统的理解。