auxochromous group

简明释义

助色团

英英释义

例句

1.The presence of an auxochromous group in the dye molecule enhances its color intensity.

染料分子中存在的助色基团增强了其颜色强度。

2.The effectiveness of a pigment often relies on the type of auxochromous group it possesses.

颜料的有效性往往依赖于其所具有的助色基团的类型。

3.In organic chemistry, understanding how an auxochromous group affects light absorption is crucial.

在有机化学中，理解助色基团如何影响光吸收是至关重要的。

4.By adding an auxochromous group, we can shift the absorption spectrum of the chemical.

通过添加一个助色基团，我们可以改变化学物质的吸收光谱。

5.The auxochromous group modifies the electronic structure of the compound, leading to a different color.

该助色基团改变了化合物的电子结构，从而导致不同的颜色。

作文

In the world of organic chemistry, understanding the functionality of various groups within molecules is crucial for predicting their behavior and reactivity. One such important concept is that of the auxochromous group, which plays a significant role in the field of dyes and pigments. An auxochromous group refers to a functional group that, while not itself capable of absorbing light in the visible spectrum, enhances the ability of a chromophore to absorb light when attached to it. This relationship between chromophores and auxochromous groups is fundamental in the design and application of colorants in various industries, including textiles, paints, and plastics.The term 'chromophore' refers to the part of a molecule responsible for its color, typically due to the presence of conjugated double bonds. However, many times, chromophores on their own may not be sufficient to produce vibrant colors. This is where auxochromous groups come into play. By providing additional electrons or modifying the electron distribution within a molecule, these groups can significantly increase the intensity of color observed in a substance.Common examples of auxochromous groups include -OH (hydroxyl), -NH2 (amino), and -COOH (carboxyl). When these groups are attached to a chromophore, they can shift the wavelength of light absorbed, often leading to a more vivid appearance. For instance, the addition of an -OH group to a benzene ring can transform a weakly colored compound into one that exhibits bright colors, making it more suitable for use in dyes.The practical implications of auxochromous groups extend beyond mere aesthetics. In the textile industry, the right combination of chromophores and auxochromous groups can lead to the development of dyes that are not only visually appealing but also possess desirable properties such as wash fastness and light stability. This is particularly important in fashion and home décor, where the longevity of color is essential.Moreover, the interaction between chromophores and auxochromous groups is not just limited to synthetic dyes. Natural pigments, such as those found in plants and animals, also exhibit this phenomenon. For example, the vibrant colors of flowers often arise from complex interactions involving chromophores and auxochromous groups. Understanding these relationships allows scientists to mimic natural colors in synthetic applications, leading to advancements in biotechnology and materials science.In conclusion, the concept of the auxochromous group is fundamental in the study of color and its applications in various fields. By enhancing the color properties of chromophores, auxochromous groups allow for the creation of a wide range of vibrant and stable colors that are essential in many industries. As we continue to explore and innovate in the realm of chemistry, the significance of these groups will undoubtedly remain at the forefront of research and development in color science.

在有机化学的世界中，理解分子内各种基团的功能对于预测它们的行为和反应性至关重要。一个重要的概念是助色基团，它在染料和颜料领域中发挥着重要作用。助色基团指的是一种功能基团，虽然本身不能吸收可见光谱中的光，但当附加在色素上时，可以增强色素吸收光的能力。这种色素与助色基团之间的关系在设计和应用各行业的着色剂中至关重要，包括纺织品、涂料和塑料。“色素”一词指的是负责分子颜色的部分，通常由于共轭双键的存在。然而，很多时候，色素本身可能不足以产生鲜艳的颜色。这就是助色基团发挥作用的地方。通过提供额外的电子或修改分子内的电子分布，这些基团可以显著增强物质的颜色强度。常见的助色基团包括-OH（羟基）、-NH2（氨基）和-COOH（羧基）。当这些基团附加到色素上时，它们可以改变所吸收光的波长，通常导致更生动的外观。例如，将-OH基团添加到苯环上可以将一种颜色较弱的化合物转变为一种展现明亮颜色的化合物，使其更适合用作染料。助色基团的实际意义不仅限于美学。在纺织工业中，色素与助色基团的正确组合可以导致开发出不仅在视觉上令人愉悦，而且具有理想特性的染料，如耐洗性和光稳定性。这在时尚和家居装饰中尤为重要，因为颜色的持久性至关重要。此外，色素与助色基团之间的相互作用不仅限于合成染料。自然色素，例如植物和动物中发现的那些，也表现出这种现象。例如，花朵的鲜艳色彩往往源于涉及色素和助色基团的复杂相互作用。理解这些关系使科学家能够在合成应用中模仿自然颜色，从而推动生物技术和材料科学的进步。总之，助色基团的概念在颜色研究及其在各个领域的应用中是基础性的。通过增强色素的颜色属性，助色基团使得创造出广泛的生动且稳定的颜色成为可能，这在许多行业中都是必不可少的。随着我们继续探索和创新化学领域，助色基团的重要性无疑将在色彩科学的研究和发展中处于前沿。