phosphines

简明释义

英[ˈfɒsfɪnz]美[ˈfɑsfɪnz]

n. 膦类化合物（phosphine 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The traceless Staudinger ligation of azides and phosphines is an effective method to produce an amide bond.

叠氮化合物和膦硫酯的无痕施陶丁格连接反应是一种有效生成酰胺键的方法。

2.The paper reviewed the study on the chiral phosphines in asymmetric catalytic hydrogenation and their nearest development. Thedesign of chiral phosphines were also evaluated and summarized.

本文综述了手性膦配体及其碳碳双键的不对称催化氢化反应研究和最新进展，并对手性膦配体的设计做了分析和总结。

3.The fragmentation reaction of aryl tertiary phosphines in the presence of lithium can be promoted effectively by use of ultrasonic irradiation.

芳基叔膦和金属锂在超声波辐射下迅速反应产生芳基膦锂。

4.The paper reviewed the study on the chiral phosphines in asymmetric catalytic hydrogenation and their nearest development. Thedesign of chiral phosphines were also evaluated and summarized.

本文综述了手性膦配体及其碳碳双键的不对称催化氢化反应研究和最新进展，并对手性膦配体的设计做了分析和总结。

5.The synthesis of handedness phosphines is gone on continually.

合成手性膦化合物的研究工作仍在进行中。

6.The laboratory detected high levels of phosphines 磷烷 in the air samples collected from the chemical plant.

实验室在从化工厂收集的空气样本中检测到高水平的phosphines 磷烷。

7.The synthesis of new compounds often involves the use of phosphines 磷烷 as ligands.

新化合物的合成通常涉及将phosphines 磷烷用作配体。

8.Researchers are studying the reactivity of phosphines 磷烷 with various metal complexes.

研究人员正在研究phosphines 磷烷与各种金属配合物的反应性。

9.Safety precautions must be taken when handling phosphines 磷烷 due to their toxicity.

处理phosphines 磷烷时必须采取安全预防措施，因为它们具有毒性。

10.In agriculture, phosphines 磷烷 are often used as a fumigant for stored grains.

在农业中，phosphines 磷烷常用作储存谷物的熏蒸剂。

作文

Phosphines are a class of chemical compounds that contain phosphorus and hydrogen. They are characterized by the presence of a phosphorus atom bonded to one or more hydrogen atoms. The simplest member of this family is phosphine (PH3), which is a colorless, flammable gas with a distinct odor resembling that of rotten fish. Phosphines play a significant role in various industrial and chemical processes, making them an important subject of study in chemistry.In the realm of organic chemistry, phosphines (磷烷) are often used as ligands in coordination chemistry. Their ability to donate electron pairs makes them valuable in forming complexes with transition metals. These complexes are crucial in catalysis, particularly in reactions involving carbon-carbon bond formation. For instance, the use of phosphines (磷烷) in palladium-catalyzed cross-coupling reactions has revolutionized synthetic organic chemistry, allowing chemists to create complex molecules efficiently.Moreover, phosphines (磷烷) are not only limited to academic research; they also have practical applications in agriculture. Certain phosphines (磷烷) are employed as fumigants for stored grains, helping to control pests without leaving harmful residues. This application highlights the versatility of phosphines (磷烷) in addressing real-world problems.However, it is essential to note that while some phosphines (磷烷) are beneficial, others can be toxic and pose environmental risks. For example, phosphine gas is highly toxic to humans and animals, and exposure can lead to severe health effects. Therefore, handling phosphines (磷烷) requires strict safety protocols to prevent accidental releases and ensure safe usage.The study of phosphines (磷烷) extends beyond their chemical properties; it also encompasses their behavior in different environments. Researchers are investigating how these compounds interact with various substrates and how they can be modified to enhance their reactivity and selectivity in chemical reactions. This research is vital for developing new catalysts that can operate under milder conditions, thus reducing energy consumption and making chemical processes more sustainable.In conclusion, phosphines (磷烷) are fascinating compounds with a wide range of applications in chemistry and industry. From their role as ligands in catalytic processes to their use in agricultural pest control, phosphines (磷烷) demonstrate their importance in both theoretical and practical contexts. As research continues to uncover new properties and applications of these compounds, the understanding and utilization of phosphines (磷烷) will undoubtedly expand, paving the way for innovations in chemistry and beyond.

磷烷是一类含有磷和氢的化合物。它们的特征是存在一个磷原子与一个或多个氢原子相连。该家族中最简单的成员是磷烷（PH3），它是一种无色、易燃的气体，具有类似腐鱼的独特气味。磷烷在各种工业和化学过程中起着重要作用，因此成为化学研究的重要课题。在有机化学领域，磷烷（phosphines）通常作为配体用于配位化学。它们能够捐赠电子对，使其在与过渡金属形成配合物方面具有重要价值。这些配合物在催化中至关重要，特别是在涉及碳-碳键形成的反应中。例如，磷烷（phosphines）在钯催化的交叉偶联反应中的使用，彻底改变了合成有机化学，使化学家能够高效地合成复杂分子。此外，磷烷（phosphines）不仅限于学术研究；它们在农业中也有实际应用。某些磷烷（phosphines）被用作储粮的熏蒸剂，有助于控制害虫而不留下有害残留物。这一应用突显了磷烷（phosphines）在解决现实问题中的多功能性。然而，必须注意的是，尽管某些磷烷（phosphines）是有益的，但其他一些可能是有毒的，并对环境构成风险。例如，磷烷气体对人类和动物高度毒性，暴露可能导致严重的健康影响。因此，处理磷烷（phosphines）需要严格的安全协议，以防止意外释放并确保安全使用。对磷烷（phosphines）的研究不仅限于其化学性质；还包括它们在不同环境中的行为。研究人员正在调查这些化合物如何与各种基质相互作用，以及如何对其进行改性以增强其在化学反应中的反应性和选择性。这项研究对于开发在更温和条件下操作的新催化剂至关重要，从而减少能源消耗，使化学过程更加可持续。总之，磷烷（phosphines）是具有广泛应用的迷人化合物，在化学和工业中占据重要地位。从它们作为催化过程中的配体的角色，到它们在农业害虫控制中的应用，磷烷（phosphines）展示了它们在理论和实践背景下的重要性。随着研究不断揭示这些化合物的新特性和应用，对磷烷（phosphines）的理解和利用无疑将扩大，为化学及其他领域的创新铺平道路。