carboxyl

简明释义

英[kɑːˈbɒksɪl]美[kɑrˈbɑksɪl]

n. 羧基

英英释义

单词用法

同义词

反义词

例句

1.Determine carboxyl content with Fourier infrared spectrum instrument.

用傅立叶红外光谱仪测定羧基含量。

2.The effect of the amount of hydrogen-peroxide and catalyst, reaction time and amount of water on the carboxyl content was investigated.

考察了氧化剂用量、催化剂用量、反应时间和水用量对氧化淀粉羧基含量的影响。

3.The grafting mass percent of connect black is more than of furnace black because of difference in carboxyl group content.

由于表面羧基含量的差异，接触法炭黑可以获得比炉法炭黑更高的接枝率。

4.A model analytical chip was prepared by coupling 4 phage antibody clones from mouse and 1 clone from human to the surface of carboxyl terminated silicon.

将4个鼠源噬菌体抗体克隆和1个人源噬菌体抗体克隆偶联到羧基终止的硅片表面，制成分析型模型芯片。

5.Lignocellulosic materials can be converted into hydrocarbons, alcohols, phenols, carboxyl acids and inorganic compounds by liquefaction.

用热化学方法，可以将木质纤维原料液化成为烃、醇、酚、羧酸等多种有机物以及一些无机物。

6.The carboxyl mucopolysaccharides is the major extracellular matrix involved and plays important role in wound healing and scar formation.

羧基粘多糖是参与创伤愈合反应的主要细胞外基质，在创伤愈合及瘢痕形成领域具有十分重要的作用。

7.In these complexes, there are hydrogen bond reciprocity between carboxyl groups and crystal lattice water molecules.

在这些配合物中，羧基氧、配位水分子和晶格水分子之间存在大量的氢键相互作用。

8.In organic chemistry, the carboxyl 羧基 functional group is often involved in acid-base reactions.

在有机化学中，羧基 羧基功能团通常参与酸碱反应。

9.During fermentation, the carboxyl 羧基 group plays a crucial role in the production of organic acids.

在发酵过程中，羧基 羧基在有机酸的产生中发挥着关键作用。

10.The carboxyl 羧基 group can be found in fatty acids, influencing their solubility.

在脂肪酸中可以找到羧基 羧基，这影响了它们的溶解性。

11.The presence of a carboxyl group 羧基 in amino acids is essential for protein structure.

氨基酸中存在一个羧基 羧基对蛋白质结构至关重要。

12.The reaction between an alcohol and a carboxyl 羧基 group forms an ester.

醇与羧基 羧基之间的反应形成酯。

作文

The study of organic chemistry introduces us to various functional groups that play crucial roles in the behavior of molecules. One of the most significant functional groups is the carboxyl group, which is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group (-OH). This structure can be represented as -COOH, and it is essential in understanding the properties of acids and bases in organic compounds. The presence of a carboxyl group in a molecule makes it an acid, as it can donate a proton (H+) to a solution, thus lowering the pH. This property is particularly important in biological systems where enzymes and metabolic pathways rely on the acidity of compounds to function effectively.In nature, many organic acids contain carboxyl groups, such as acetic acid found in vinegar and citric acid present in citrus fruits. These acids are not only vital for their taste but also for their role in biochemical processes. For example, citric acid is a key player in the Krebs cycle, a fundamental metabolic pathway that generates energy in living organisms. The carboxyl group’s ability to participate in hydrogen bonding enhances the solubility of these acids in water, making them more reactive in biological environments.When discussing the significance of the carboxyl group, it is essential to consider its impact on molecular interactions. The polarity of the carboxyl group allows it to form hydrogen bonds with water molecules, which contributes to the solubility of organic acids in aqueous solutions. This property is crucial for the transport and metabolism of these compounds within cells. Additionally, the carboxyl group can undergo various chemical reactions, such as esterification and amidation, leading to the formation of esters and amides, respectively. These reactions are fundamental in the synthesis of lipids and proteins, which are vital components of all living organisms.Furthermore, the carboxyl group plays a significant role in the formation of polymers. For instance, when multiple monomers containing carboxyl groups react with alcohols, they can form polyesters, which are widely used in the production of plastics and fibers. This aspect of the carboxyl group highlights its versatility and importance in both natural and synthetic processes.In conclusion, the carboxyl group is a fundamental component of organic chemistry that influences the behavior of molecules in various ways. Its acidic properties, ability to form hydrogen bonds, and participation in chemical reactions make it indispensable in biological systems and industrial applications. Understanding the carboxyl group not only enriches our knowledge of organic compounds but also helps us appreciate the intricate connections between chemistry and life itself. As we continue to explore the vast world of organic chemistry, the carboxyl group will undoubtedly remain a focal point in our studies, illustrating the beauty and complexity of molecular interactions.

有机化学的研究使我们了解各种功能团，这些功能团在分子的行为中起着至关重要的作用。最重要的功能团之一是羧基，其特征是一个碳原子与一个氧原子双键结合，并与一个羟基(-OH)单键结合。这个结构可以表示为-COOH，它在理解有机化合物的酸碱性质中至关重要。羧基在分子中的存在使其成为一种酸，因为它可以向溶液中释放一个质子(H+)，从而降低pH值。这一特性在生物系统中尤为重要，因为酶和代谢途径依赖于化合物的酸性来有效运作。在自然界中，许多有机酸都含有羧基，例如醋中的醋酸和柑橘类水果中的柠檬酸。这些酸不仅对其味道至关重要，而且对生化过程也至关重要。例如，柠檬酸是克雷布斯循环中的关键参与者，这是一个在生物体内产生能量的基本代谢途径。羧基的能力参与氢键形成增强了这些酸在水中的溶解性，使它们在生物环境中更加活跃。在讨论羧基的重要性时，必须考虑其对分子相互作用的影响。羧基的极性使其能够与水分子形成氢键，这有助于有机酸在水溶液中的溶解性。这一特性对于这些化合物在细胞内的运输和代谢至关重要。此外，羧基可以经历各种化学反应，例如酯化和酰胺化，从而形成酯和酰胺。这些反应在脂质和蛋白质的合成中是基础，而脂质和蛋白质是所有生物体的重要组成部分。此外，羧基在聚合物的形成中也发挥着重要作用。例如，当多个含有羧基的单体与醇反应时，它们可以形成聚酯，这在塑料和纤维的生产中被广泛使用。羧基的这一方面突显了它在自然和合成过程中的多样性和重要性。总之，羧基是有机化学中的一个基本组成部分，以各种方式影响分子的行为。它的酸性特性、形成氢键的能力以及参与化学反应使其在生物系统和工业应用中不可或缺。理解羧基不仅丰富了我们对有机化合物的知识，也帮助我们欣赏化学与生命之间的复杂联系。在我们继续探索广阔的有机化学世界时，羧基无疑将继续成为我们研究的焦点，展示分子相互作用的美丽和复杂性。