secondary valency

简明释义

次化合价

英英释义

例句

1.In coordination chemistry, the concept of secondary valency 次级价态 is crucial for understanding how ligands interact with metal ions.

在配位化学中，次级价态 secondary valency 的概念对于理解配体如何与金属离子相互作用至关重要。

2.Understanding the secondary valency 次级价态 is essential for predicting the behavior of transition metal complexes.

理解次级价态 secondary valency 对于预测过渡金属络合物的行为至关重要。

3.When designing new catalysts, chemists must consider both the secondary valency 次级价态 and the primary coordination sphere.

在设计新催化剂时，化学家必须考虑次级价态 secondary valency 和主要配位球。

4.The secondary valency 次级价态 of a metal complex can influence its stability and reactivity.

金属络合物的次级价态 secondary valency 可以影响其稳定性和反应性。

5.The secondary valency 次级价态 allows for additional interactions beyond the primary coordination bonds.

通过次级价态 secondary valency，可以实现超出主要配位键的额外相互作用。

作文

The concept of secondary valency is crucial in understanding the behavior of complex compounds in chemistry. In simple terms, secondary valency refers to the number of coordination bonds that a metal ion can form with surrounding ligands, beyond its primary valency. This distinction is essential because it helps chemists predict how different substances will interact with one another in various chemical reactions. To illustrate, let’s consider the case of transition metals, which often exhibit multiple oxidation states. These metals can form various complexes depending on their secondary valency. For instance, when iron (Fe) is in the +2 oxidation state, it typically has a coordination number of six, allowing it to bond with six water molecules to form [Fe(H2O)6]²⁺. However, when iron is in the +3 oxidation state, it can also form octahedral complexes with different ligands, demonstrating how secondary valency affects the geometry and stability of these complexes.The importance of secondary valency extends beyond just theoretical chemistry; it plays a significant role in biological systems as well. Many enzymes and proteins rely on metal ions that have specific secondary valency characteristics to function correctly. For example, hemoglobin, the oxygen-carrying molecule in our blood, contains iron that exhibits a secondary valency that allows it to bind oxygen efficiently. Understanding these interactions at the molecular level is vital for fields such as biochemistry and pharmacology, where the design of drugs may involve targeting specific metal-ligand interactions.Furthermore, the study of secondary valency is not limited to natural processes; it is also a foundation for developing new materials. Researchers are exploring how to manipulate secondary valency in synthetic compounds to create innovative catalysts or materials with unique properties. For instance, by altering the ligands surrounding a metal center, scientists can enhance catalytic activity or selectivity, leading to more efficient chemical processes.In conclusion, the concept of secondary valency is a fundamental aspect of coordination chemistry that impacts both the theoretical and practical realms of science. From understanding the behavior of metal ions in biological systems to designing new materials, secondary valency provides insights into the complexities of chemical interactions. As research continues to evolve, the implications of secondary valency will undoubtedly lead to advancements in various scientific fields, highlighting its significance in both nature and technology.

“次级价态”这一概念在理解化学中复杂化合物的行为时至关重要。简单来说，“次级价态”指的是金属离子能够与周围配体形成的配位键的数量，超出其主要价态。这一区别非常重要，因为它帮助化学家预测不同物质在各种化学反应中的相互作用。为了说明这一点，让我们考虑过渡金属的情况，这些金属通常表现出多种氧化态。这些金属可以根据其“次级价态”形成不同的配合物。例如，当铁（Fe）处于+2氧化态时，它通常具有六个配位数，允许它与六个水分子结合形成[Fe(H2O)6]²⁺。然而，当铁处于+3氧化态时，它也可以与不同的配体形成八面体配合物，这表明“次级价态”如何影响这些配合物的几何形状和稳定性。“次级价态”的重要性不仅限于理论化学；它在生物系统中也发挥着重要作用。许多酶和蛋白质依赖于具有特定“次级价态”特征的金属离子才能正常运作。例如，血红蛋白是我们血液中携带氧气的分子，含有的铁展现出一种“次级价态”，使其能够有效地结合氧气。从分子层面理解这些相互作用对于生物化学和药理学等领域至关重要，因为药物设计可能涉及针对特定金属-配体相互作用。此外，“次级价态”的研究不仅限于自然过程；它也是开发新材料的基础。研究人员正在探索如何操控“次级价态”以合成具有独特性质的新材料或催化剂。例如，通过改变围绕金属中心的配体，科学家可以增强催化活性或选择性，从而导致更高效的化学过程。总之，“次级价态”的概念是配位化学的一个基本方面，影响着科学的理论和实践领域。从理解生物系统中金属离子的行为到设计新材料，“次级价态”提供了对化学相互作用复杂性的洞察。随着研究的不断发展，“次级价态”的影响无疑将推动各个科学领域的进步，突显其在自然和技术中的重要性。