Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Valence Bond Theory02:42

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Formation of Complex Ions03:45

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
Diazonium Group Substitution: –OH and –H01:19

Diazonium Group Substitution: –OH and –H

Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions01:20

Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview01:26

1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview

Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Physical Environment Features and Healthcare Interruptions: A Scoping Review Across Clinical Settings.

HERD·2026
Same author

Pd(II)-Catalyzed Oxidative Annulation of Alkenes toward Isoxazoline <i>N</i>-Oxides.

Organic letters·2026
Same author

Longitudinal Analyses of Social Interactions by Neighborhood Walkability, Marital Status, Age, and Differential Effects of a Global Public Health Emergency by Race and Ethnicity.

Inquiry : a journal of medical care organization, provision and financing·2026
Same author

Effects of High-Altitude Environments on Gut Microbiota and Their Mechanisms in Immune Regulation and High-Altitude Adaptation.

International journal of molecular sciences·2026
Same author

Cell-type-resolved RNP topologies reveal dynamic structural mechanisms of splicing and therapeutic targets.

bioRxiv : the preprint server for biology·2026
Same author

Catalytic Functionalization of Unactivated π-Bonds Enabled by Bidentate Directing Auxiliaries.

Angewandte Chemie (International ed. in English)·2026

Related Experiment Video

Updated: Jun 19, 2026

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

Ni(DQ)2: A Useful Gateway to Zero-Valent Nickel Complexes.

Wen-Ji He1, Shili Fang1, Shenghua Yang1

  • 1Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States.

Organometallics
|June 18, 2026
PubMed
Summary

We synthesized Ni(DQ)2 (duroquinone) as a convenient Ni(0) source for organometallic chemistry. This air-stable precatalyst facilitates ligand exchange and is effective where other nickel precursors fail.

More Related Videos

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol
08:12

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol

Published on: February 11, 2016

Related Experiment Videos

Last Updated: Jun 19, 2026

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol
08:12

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol

Published on: February 11, 2016

Area of Science:

  • Organometallic Chemistry
  • Synthetic Chemistry

Background:

  • Nickel complexes are vital in catalysis.
  • Developing new Ni(0) sources is crucial for advancing synthetic methodologies.

Purpose of the Study:

  • To report a convenient synthesis of Ni(DQ)2 (duroquinone).
  • To demonstrate Ni(DQ)2 as a versatile Ni(0) precatalyst.

Main Methods:

  • Synthesis guided by Density Functional Theory (DFT) calculations.
  • Exploration of ligand exchange reactions.
  • Evaluation as a precatalyst in organometallic reactions.

Main Results:

  • Ni(DQ)2 was synthesized from Ni(II) and Ni(0) precursors.
  • Ni(DQ)2 readily exchanges ligands with phosphine, bis-nitrogen, and diene ligands.
  • Ni(DQ)2 serves as an effective air-stable Ni(0) precatalyst, outperforming Ni(COD)(DQ) in certain applications.

Conclusions:

  • Ni(DQ)2 is a convenient and versatile Ni(0) source.
  • Its unique ligand environment enables facile ligand exchange.
  • Ni(DQ)2 expands the scope of nickel-catalyzed synthetic transformations.