directed dipole

简明释义

定向倡偶极子

英英释义

例句

1.Researchers used a directed dipole (定向偶极子) model to predict the alignment of molecules in an external electric field.

研究人员使用定向偶极子模型来预测分子在外部电场中的排列。

2.The interaction of a directed dipole (定向偶极子) with a magnetic field can lead to interesting quantum phenomena.

一个定向偶极子与磁场的相互作用可能导致有趣的量子现象。

3.The concept of a directed dipole (定向偶极子) is crucial for understanding the electric field generated by polar molecules.

理解极性分子产生的电场时，定向偶极子的概念至关重要。

4.In the study of molecular interactions, a directed dipole (定向偶极子) can significantly influence the behavior of nearby molecules.

在分子相互作用的研究中，定向偶极子可以显著影响附近分子的行为。

5.In spectroscopy, the transition dipole moment can be treated as a directed dipole (定向偶极子) to analyze light absorption.

在光谱学中，跃迁偶极矩可以被视为定向偶极子来分析光的吸收。

作文

In the study of physics and chemistry, the concept of a directed dipole plays a crucial role in understanding molecular interactions and electromagnetic phenomena. A directed dipole refers to a pair of equal and opposite charges separated by a certain distance, where the orientation of this dipole is significant in determining its behavior in an electric field. The term 'dipole' itself comes from the Greek words 'di' meaning two and 'pole' referring to the ends of the dipole, which highlights the dual nature of the system. To comprehend the significance of a directed dipole, one must first understand what constitutes a dipole. In simple terms, a dipole consists of two charges: a positive charge and a negative charge. When these charges are separated by a distance, they create an electric field around them. The strength and direction of this field depend on the magnitude of the charges and the distance between them. However, when we talk about a directed dipole, we emphasize not just the presence of these charges but also their orientation in space.The orientation of a directed dipole is essential because it affects how the dipole interacts with external electric fields. For instance, when placed in a uniform electric field, a directed dipole will experience a torque that tends to align it with the field. This alignment is crucial in various applications, such as in the design of molecular devices and understanding the behavior of polar molecules in solvents. Moreover, the concept of a directed dipole is vital in the context of molecular spectroscopy. When molecules absorb light, the transitions between energy levels can be influenced by the orientation of the dipoles associated with those molecules. This phenomenon is particularly important in infrared spectroscopy, where the vibrational modes of molecules can be studied based on their dipole moments. In addition to its applications in chemistry and physics, the idea of a directed dipole extends to various fields, including biology and materials science. For example, in biological systems, proteins often have regions that behave like dipoles due to the distribution of charges within their structure. The interaction of these directed dipoles with other molecules can significantly influence biochemical processes, such as enzyme-substrate interactions and signal transduction pathways. Furthermore, in materials science, the properties of polymers and other materials can be greatly affected by the presence of directed dipoles. The alignment of dipoles in a material can lead to changes in electrical conductivity, dielectric properties, and even mechanical strength. Understanding how to manipulate these dipoles enhances our ability to design advanced materials with tailored properties for specific applications.In conclusion, the concept of a directed dipole is fundamental to many areas of science and technology. Its importance spans across molecular interactions, spectroscopy, biological systems, and materials science. By grasping the nuances of directed dipoles, researchers and engineers can develop innovative solutions to complex problems, paving the way for advancements in various scientific fields. As we continue to explore the intricacies of dipoles and their directed nature, we unlock new possibilities for technological progress and a deeper understanding of the natural world.

在物理和化学研究中，定向偶极子的概念在理解分子相互作用和电磁现象中发挥着至关重要的作用。定向偶极子是指一对相等且相反的电荷，它们之间相隔一定距离，其中偶极子的方向在决定其在电场中的行为时具有重要意义。‘偶极子’这个术语本身源于希腊词‘di’，意为二，‘pole’指的是偶极子的两端，这突出了该系统的双重性质。要理解定向偶极子的重要性，首先必须了解什么构成偶极子。简单来说，偶极子由两个电荷组成：一个正电荷和一个负电荷。当这些电荷相隔一定距离时，它们会在周围产生电场。这个电场的强度和方向取决于电荷的大小和它们之间的距离。然而，当我们谈论定向偶极子时，我们强调的不仅是这些电荷的存在，还有它们在空间中的方向。定向偶极子的方向性至关重要，因为它影响偶极子与外部电场的相互作用。例如，当置于均匀电场中时，定向偶极子将经历一种扭矩，倾向于使其与电场对齐。这种对齐在各种应用中至关重要，例如在分子设备的设计和理解极性分子在溶剂中的行为。此外，定向偶极子的概念在分子光谱学中也至关重要。当分子吸收光时，能级之间的跃迁可能受与这些分子相关的偶极子的方向的影响。这种现象在红外光谱学中特别重要，在这里，分子的振动模式可以根据其偶极矩进行研究。除了在化学和物理学中的应用外，定向偶极子的概念还扩展到多个领域，包括生物学和材料科学。例如，在生物系统中，由于其结构内电荷的分布，蛋白质往往具有表现为偶极子的区域。这些定向偶极子与其他分子的相互作用可以显著影响生化过程，如酶-底物相互作用和信号转导途径。此外，在材料科学中，聚合物和其他材料的特性可能会受到定向偶极子存在的极大影响。材料中偶极子的排列可以导致电导率、介电特性甚至机械强度的变化。理解如何操控这些偶极子增强了我们设计具有特定应用所需特性的先进材料的能力。总之，定向偶极子的概念是许多科学和技术领域的基础。它的重要性跨越了分子相互作用、光谱学、生物系统和材料科学。通过掌握定向偶极子的细微差别，研究人员和工程师能够开发出创新的解决方案来应对复杂问题，为各个科学领域的进步铺平道路。随着我们继续探索偶极子及其定向特性的复杂性，我们为技术进步和对自然世界更深层次的理解打开了新的可能性。