multidentate

简明释义

英[ˌmʌltiˈdenteɪt]美[ˌmʌltiˈdenteɪt;ˌmʌltaɪˈdente

adj. 多齿状突起的，多齿的

英英释义

单词用法

同义词

反义词

例句

1.The development of the multidentate complexes applied in the atomic absorption spectrometry has been reviewed.

评述了多元络合物在原子吸收光度分析中的应用进展。

2.Ethylenediamine tetra Methylenephosphonic acid is a new multidentate ligand.

乙二胺四甲叉膦酸是一种新型多齿配合剂。

3.The development of the multidentate complexes applied in the atomic absorption spectrometry has been reviewed.

评述了多元络合物在原子吸收光度分析中的应用进展。

4.Researchers are exploring new multidentate 多齿配体 structures for improved drug delivery systems.

研究人员正在探索新的多齿配体多齿配体结构，以改善药物递送系统。

5.The stability of the metal-ligand bond increases with the use of multidentate 多齿配体 ligands.

使用多齿配体多齿配体配体时，金属-配体键的稳定性增加。

6.In coordination chemistry, multidentate 多齿配体 ligands are often more stable than monodentate ones.

在配位化学中，多齿配体多齿配体通常比单齿配体更稳定。

7.The ligand used in this reaction is a multidentate 多齿配体 that can bind to the metal ion at multiple sites.

在这个反应中使用的配体是一个多齿配体多齿配体，可以在多个位置与金属离子结合。

8.The complex formed by the multidentate 多齿配体 showed enhanced solubility in water.

由多齿配体多齿配体形成的复合物在水中的溶解度增强。

作文

In the world of chemistry, the term multidentate refers to a type of ligand that can form multiple bonds with a central metal atom or ion. This characteristic is crucial in coordination chemistry, where the stability and reactivity of metal complexes are influenced by the nature of the ligands involved. A multidentate ligand has two or more donor atoms that can coordinate to a single metal center, creating a more stable complex than monodentate ligands, which only bind through one site.For example, ethylenediamine (en) is a common multidentate ligand that contains two nitrogen atoms capable of forming bonds with a metal ion. When ethylenediamine coordinates with a metal ion, it wraps around the metal, effectively 'cheating' it by using both of its nitrogen atoms to form two bonds. This results in a chelate complex, which is often more stable than complexes formed with ligands that can only attach at a single point.The concept of multidentate ligands is not only important for understanding the stability of metal complexes but also plays a significant role in various applications. For instance, in biological systems, many essential metal ions, such as iron and copper, are transported and stored in organisms by multidentate ligands. Hemoglobin, the protein responsible for oxygen transport in blood, contains an iron atom coordinated by a multidentate porphyrin ligand, allowing it to efficiently bind and release oxygen as needed.Moreover, the design of multidentate ligands has significant implications in the field of medicinal chemistry. Researchers are developing new multidentate compounds that can selectively target metal ions in cancer therapy or imaging techniques. By utilizing the unique properties of multidentate ligands, scientists aim to create more effective treatments with fewer side effects.In environmental chemistry, multidentate ligands also play a vital role in the remediation of heavy metal pollution. Certain multidentate chelators can bind to toxic metals in contaminated soil or water, facilitating their removal or stabilization. This process not only helps to clean up polluted sites but also prevents harmful metals from entering the food chain.In summary, the term multidentate encompasses a crucial aspect of coordination chemistry, highlighting the ability of certain ligands to form multiple bonds with metal ions. This property enhances the stability of metal complexes and underpins many biological, medicinal, and environmental processes. Understanding multidentate ligands and their interactions with metal ions is essential for advancing research in various scientific fields, including chemistry, biology, and environmental science.

在化学世界中，术语multidentate指的是一种配体，它可以与中心金属原子或离子形成多个键。这一特性在配位化学中至关重要，因为金属络合物的稳定性和反应性受到所涉及配体性质的影响。multidentate配体具有两个或更多的供体原子，可以与单个金属中心配位，从而形成比单齿配体更稳定的络合物，后者只能通过一个位点结合。例如，乙二胺（en）是一种常见的multidentate配体，包含两个能够与金属离子形成键的氮原子。当乙二胺与金属离子配位时，它围绕金属缠绕，有效地通过使用其两个氮原子形成两个键来“欺骗”金属。这导致了螯合络合物的形成，这种络合物通常比仅能在单一点附着的配体形成的络合物更稳定。multidentate配体的概念不仅对理解金属络合物的稳定性重要，而且在各种应用中也发挥着重要作用。例如，在生物系统中，许多必需的金属离子，如铁和铜，是由multidentate配体在生物体内运输和储存的。血红蛋白是负责血液中氧气运输的蛋白质，包含一个与multidentate卟啉配体配位的铁原子，使其能够有效地根据需要结合和释放氧气。此外，multidentate配体的设计在药物化学领域具有重要意义。研究人员正在开发新的multidentate化合物，可以选择性地靶向癌症治疗或成像技术中的金属离子。通过利用multidentate配体的独特性质，科学家们旨在创造更有效的治疗方法，同时减少副作用。在环境化学中，multidentate配体也在重金属污染的修复中发挥着重要作用。某些multidentate螯合剂可以与受污染土壤或水中的有毒金属结合，促进其去除或稳定。这个过程不仅有助于清理污染场所，还可以防止有害金属进入食物链。总之，术语multidentate涵盖了配位化学的一个关键方面，突出了某些配体与金属离子形成多个键的能力。这一属性增强了金属络合物的稳定性，并支撑着许多生物、医学和环境过程。理解multidentate配体及其与金属离子的相互作用对于推进化学、生物学和环境科学等各个科学领域的研究至关重要。