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

Ladder Diagrams: Complexation Equilibria01:07

Ladder Diagrams: Complexation Equilibria

480
Ladder diagrams are useful for evaluating equilibria involving metal-ligand complexes. The vertical scale of the ladder diagram represents the concentration of unreacted or free ligand, pL. The horizontal lines on the scale depict the log of stepwise formation constants for metal-ligand complexes and indicate the dominant species in all the regions.
The formation constant, K1, for the formation of Cd(NH3)2+ complex from cadmium and ammonia is 3.55 × 102. Log K1 (i.e. pNH3) is 2.55, and...
480
2° Amines to N-Nitrosamines: Reaction with NaNO201:20

2° Amines to N-Nitrosamines: Reaction with NaNO2

4.8K
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
4.8K
The Equilibrium Constant03:10

The Equilibrium Constant

52.8K
Consider the oxidation of sulfur dioxide:
52.8K
Noble Gases02:54

Noble Gases

20.8K

The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.
20.8K
Valence Bond Theory02:42

Valence Bond Theory

10.0K
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...
10.0K
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism01:37

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

4.3K
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.
4.3K

You might also read

Related Articles

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

Sort by
Same author

Pressure-Induced Re-Emergence of Two-Dimensional Superconductivity in (PbS)<sub>1.13</sub>TaS<sub>2</sub>.

Journal of the American Chemical Society·2026
Same author

The Low-Pressure-Driven Barocaloric Effect at Room Temperature in the Two-Dimensional Hofmann-Type Coordination Polymer {Fe<sup>II</sup>(pdz)<sub>2</sub>[Pt(CN)<sub>4</sub>]}.

Inorganic chemistry·2026
Same author

Periodic Structure Formed by Atomic-Disordered Lamellar Building Blocks Enables Two-Dimensional Superconductivity in SiP<sub>2</sub>.

Journal of the American Chemical Society·2025
Same author

Hypercoordinated PN<sub>4</sub> with Nonclassical N-N Bonds: An <i>sp</i><sup>2+</sup> Hybridized Framework Stabilized by <i>d</i>-Orbital Activation.

The journal of physical chemistry letters·2025
Same author

Aliphatic Chains and External Pressure as Tools for Fine-Tuning Spin Transition Temperature and Cooperativity.

Inorganic chemistry·2025
Same author

1T/2H-MoS<sub>2</sub> Nanoclusters as Plasmon-Free Surface-Enhanced Raman Spectroscopy Substrates for Ultrasensitive Detection of Environmental Pollutants.

Langmuir : the ACS journal of surfaces and colloids·2025

Related Experiment Video

Updated: Nov 9, 2025

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.8K

New Cadmium-Nitrogen Compounds at High Pressures.

Shifeng Niu1, Zhihui Li1, Haiyan Li1

  • 1State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, P.R. China.

Inorganic Chemistry
|April 16, 2021
PubMed
Summary

Researchers explored high-pressure cadmium nitride (CdNx) phases, discovering novel nitrogen structures. Some phases show high stability and potential as high-energy materials, with metallic properties and strong Cd-N bonds.

More Related Videos

Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

11.4K
Nitrogen Compound Characterization in Fuels by Multidimensional Gas Chromatography
08:22

Nitrogen Compound Characterization in Fuels by Multidimensional Gas Chromatography

Published on: May 15, 2020

7.9K

Related Experiment Videos

Last Updated: Nov 9, 2025

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.8K
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

11.4K
Nitrogen Compound Characterization in Fuels by Multidimensional Gas Chromatography
08:22

Nitrogen Compound Characterization in Fuels by Multidimensional Gas Chromatography

Published on: May 15, 2020

7.9K

Area of Science:

  • Materials Science
  • Computational Chemistry
  • Solid State Physics

Background:

  • High-pressure studies are crucial for discovering novel materials with unique properties.
  • Cadmium nitrides (CdNx) have been explored, but their high-pressure phases remain largely uncharacterized.

Purpose of the Study:

  • To systematically investigate the high-pressure phases of cadmium nitrides (CdNx, x = 2-6).
  • To identify stable and metastable structures and evaluate their potential as high-energy materials.

Main Methods:

  • First-principles calculations combined with particle swarm optimization.
  • Structural prediction and characterization under high pressure.
  • Electronic structure analysis and stability evaluation.

Main Results:

  • Four stable (P4mbm-CdN2, Cmmm-CdN4, I4̅2d-CdN4, C2/c-CdN5) and one metastable (C2/m-CdN6) high-pressure CdNx phases were proposed.
  • Novel nitrogen structures, including zigzag-antizigzag chains and N14 networks, were discovered.
  • Cmmm-CdN4 and C2/m-CdN6 exhibit high stability at ambient conditions.
  • Several phases show high energy density and explosive performance, indicating potential as high-energy materials.
  • All predicted phases are metallic with strong covalent N-N and ionic Cd-N bonds.

Conclusions:

  • High-pressure synthesis can yield stable cadmium nitride phases with novel nitrogen allotropes.
  • Cmmm-CdN4 and C2/m-CdN6 are promising candidates for high-energy materials due to their stability and performance.
  • Electronic structure analysis reveals key bonding characteristics contributing to material stability.