相关实验视频

Updated: Jun 9, 2025

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
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Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds

Published on: February 16, 2022

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从亚酸盐通过O原子转移在不对称的β-diketiminato铜中产生氧化的机制见解 (II) 亚酸盐复合物

Yi-Rong Hsiang1,2, Naorem Jemes Meitei2, Gifta Evangeline Henry2,3

  • 1Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan. yafan@gms.ndhu.edu.tw.

Dalton transactions (Cambridge, England : 2003)
|October 31, 2024
PubMed
概括

这项研究揭示了三 (PPh3) 如何在铜 (II) 酸盐复合体中触发氧原子转移 (OAT),产生氧化 (NO). 该机制涉及两个PPh3连接体和非对称复合体的独特途径,有助于未来连接体的设计.

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Rate-Determining Steps

Relating Reaction Mechanisms
In a multistep reaction mechanism, one of the elementary steps progresses significantly slower than the others. This slowest step is called the rate-limiting step (or rate-determining step). A reaction cannot proceed faster than its slowest step, and hence, the rate-determining step limits the overall reaction rate.
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Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
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The nitration of benzene is an example of an electrophilic aromatic substitution reaction. It involves the formation of a very powerful electrophile, the nitronium ion, which is linear in shape. The reaction occurs through the interaction of two strong acids, sulfuric and nitric acid.
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