coordination isomer

简明释义

配位异构物

英英释义

例句

1.The study of coordination isomers 配位异构体 can reveal important information about the bonding in transition metal complexes.

对coordination isomers 配位异构体的研究可以揭示过渡金属配合物中键合的重要信息。

2.Understanding the properties of coordination isomers 配位异构体 is essential for developing new catalysts.

理解coordination isomers 配位异构体的性质对开发新催化剂至关重要。

3.Researchers have identified several coordination isomers 配位异构体 with unique electronic properties.

研究人员已经识别出几种具有独特电子性质的coordination isomers 配位异构体。

4.The two coordination isomers 配位异构体 of the complex exhibited distinct colors when dissolved in solution.

该配合物的两个coordination isomers 配位异构体在溶液中溶解时显示出不同的颜色。

5.In our chemistry lab, we synthesized different coordination isomers 配位异构体 to observe their reactivity.

在我们的化学实验室里，我们合成了不同的coordination isomers 配位异构体以观察它们的反应性。

作文

Coordination chemistry is a fascinating branch of chemistry that deals with the study of coordination compounds, which are formed by the combination of metal ions with ligands. One interesting aspect of coordination compounds is the phenomenon known as coordination isomer, which refers to two or more compounds that have the same molecular formula but differ in the way the ligands are attached to the central metal ion. This concept not only highlights the complexity of coordination compounds but also emphasizes the importance of the spatial arrangement of atoms in determining the properties of these compounds.To understand coordination isomer, we first need to grasp what coordination compounds are. These compounds typically consist of a central metal atom or ion bonded to surrounding molecules or ions known as ligands. Ligands can be neutral molecules like water or charged entities like chloride ions. The nature of these ligands, including their size, charge, and ability to donate electron pairs, plays a crucial role in the formation and stability of the resulting coordination compound.The existence of coordination isomer can be illustrated through various examples. One classic case involves the coordination complex [Co(NH3)6]Cl3, which features cobalt (Co) as the central metal ion surrounded by six ammonia (NH3) ligands. This complex can exist in different forms depending on how the ligands are arranged around the cobalt ion. In one isomer, all six ammonia molecules are coordinated to the cobalt ion, while in another isomer, some of the ammonia ligands may be replaced by chloride ions. Although both isomers share the same molecular formula, they exhibit distinct chemical and physical properties due to their different ligand arrangements.Another example of coordination isomer can be found in octahedral complexes, where the coordination number is six. For instance, consider the complex [CrCl2(NH3)4]+. This complex can form two isomers: one where the two chloride ions are adjacent to each other (cis isomer) and another where they are opposite each other (trans isomer). These differences in ligand positioning lead to variations in properties such as solubility, color, and reactivity, showcasing the significance of the isomerism phenomenon in coordination chemistry.The study of coordination isomer has practical implications in various fields, including catalysis, materials science, and medicine. For instance, certain coordination isomers may exhibit enhanced catalytic activity or selectivity in chemical reactions, making them valuable in industrial applications. Additionally, the unique properties of specific isomers can be harnessed in drug design, where the efficacy and safety of pharmaceutical compounds can be influenced by their structural arrangement.In conclusion, the concept of coordination isomer serves as a reminder of the intricacies involved in coordination chemistry. The ability of coordination compounds to exist in different isomeric forms not only enriches our understanding of chemical bonding and structure but also opens up avenues for innovation in various scientific disciplines. As we continue to explore the world of coordination chemistry, the study of isomers will undoubtedly remain a key area of interest, revealing the profound impact of molecular arrangement on the behavior and characteristics of chemical compounds.

配位化学是化学的一个迷人分支，研究配位化合物，这些化合物是由金属离子与配体结合而形成的。配位化合物的一个有趣方面是称为coordination isomer（配位异构体）的现象，它指的是两个或多个具有相同分子式但在配体与中心金属离子的结合方式上有所不同的化合物。这个概念不仅突显了配位化合物的复杂性，也强调了原子的空间排列在决定这些化合物性质中的重要性。要理解coordination isomer，我们首先需要掌握什么是配位化合物。这些化合物通常由一个中心金属原子或离子与周围的分子或离子（称为配体）结合而成。配体可以是中性分子，如水，或带电实体，如氯离子。这些配体的性质，包括它们的大小、电荷和捐赠电子对的能力，在形成和稳定所产生的配位化合物中起着至关重要的作用。coordination isomer的存在可以通过各种例子来说明。一个经典的例子涉及配位复合物[Co(NH3)6]Cl3，其中钴（Co）作为中心金属离子，周围有六个氨（NH3）配体。根据配体围绕钴离子的排列方式，这个复合物可以存在不同形式。在一种异构体中，所有六个氨分子都与钴离子配位，而在另一种异构体中，一些氨配体可能被氯离子替代。尽管这两种异构体具有相同的分子式，但由于其不同的配体排列，它们表现出不同的化学和物理性质。另一个coordination isomer的例子可以在八面体配合物中找到，其中配位数为六。例如，考虑复合物[CrCl2(NH3)4]+。该复合物可以形成两种异构体：一种是两个氯离子相邻（顺式异构体），另一种是它们相对（反式异构体）。这些配体位置的差异导致溶解度、颜色和反应性等性质的变化，展示了配位化学中异构现象的重要性。对coordination isomer的研究在催化、材料科学和医学等各个领域都有实际意义。例如，某些配位异构体可能在化学反应中表现出增强的催化活性或选择性，使其在工业应用中具有价值。此外，特定异构体的独特性质可以在药物设计中加以利用，药物化合物的有效性和安全性可能会受到其结构排列的影响。总之，coordination isomer的概念提醒我们配位化学中的复杂性。配位化合物以不同异构体形式存在的能力不仅丰富了我们对化学键合和结构的理解，还为各个科学学科的创新开辟了途径。在我们继续探索配位化学的世界时，异构体的研究无疑将仍然是一个关键的关注领域，揭示分子排列对化合物行为和特性的深远影响。