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

Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

2.2K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.2K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

28.5K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
28.5K
Colors and Magnetism03:02

Colors and Magnetism

12.1K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.1K
Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism01:10

Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism

3.7K
Cyanohydrins are formed when cyanide nucleophiles and carbonyl compounds like aldehydes and ketones react. A strong base, the cyanide ion, catalyzes cyanohydrin formation. The ions are generated from HCN under aqueous conditions. Once the cyanide ions are generated, the first step involves the nucleophilic attack of the cyanide ions on the electrophilic carbonyl carbon. This attack shifts the π electrons from the C=O to the oxygen atom forming the alkoxide ion intermediate. The alkoxide...
3.7K
Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

3.5K
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
3.5K
Coordination Number and Geometry02:57

Coordination Number and Geometry

15.6K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
15.6K

You might also read

Related Articles

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

Sort by
Same author

Detection of Atmospherically Relevant Mixed Mercuric Compounds by Chemical Ionization Mass Spectrometry.

ACS earth & space chemistry·2026
Same author

Nickel-Catalyzed Deallylation for Sustainable Solution and Solid-Phase Peptide Synthesis.

Organic letters·2026
Same author

Hydrocyclization/Defluorination of CF<sub>3</sub>-Substituted Acrylamides: Insights from Kinetics of Hydrogen Atom Transfer.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2025
Same author

Formation of TEMPO Adducts with Hydrogen Atom Transfer: An Alternative Pathway to Versatile Hydrofunctionalizations of Olefins.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025
Same author

Retraction of "Hydrogen Atom Transfer (HAT)-Mediated Remote Desaturation Enabled by Fe/Cr-H Cooperative Catalysis".

Journal of the American Chemical Society·2025
Same author

Retraction of "Cooperative Fe/Co-Catalyzed Remote Desaturation for the Synthesis of Unsaturated Amide Derivatives".

Journal of the American Chemical Society·2025

Related Experiment Video

Updated: May 6, 2026

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
09:12

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst

Published on: May 21, 2019

8.8K

Electron transfer from hexameric copper hydrides.

Michael S Eberhart1, Jack R Norton, Ashley Zuzek

  • 1Department of Chemistry, Columbia University , New York, New York 10027, United States.

Journal of the American Chemical Society
|November 1, 2013
PubMed
Summary

Copper hydride hexamers are stable in solution, with hydride ligands rearranging internally. Single-electron transfer reactions were observed using stopped-flow and cyclic voltammetry techniques for these copper hydride clusters.

More Related Videos

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

8.3K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

2.8K

Related Experiment Videos

Last Updated: May 6, 2026

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
09:12

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst

Published on: May 21, 2019

8.8K
Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

8.3K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

2.8K

Area of Science:

  • Organometallic Chemistry
  • Coordination Chemistry
  • Photochemistry

Background:

  • Copper hydride complexes are known catalysts, but their reactivity in solution is not fully understood.
  • The stability and electronic properties of electron-rich copper hydride clusters require further investigation.

Purpose of the Study:

  • To investigate the solution stability and reactivity of 84-electron copper hydride hexamers.
  • To characterize the single-electron transfer processes involving these copper hydride complexes.
  • To synthesize and study a novel 48-electron copper hydride trimer.

Main Methods:

  • Stopped-flow techniques to observe rapid reaction kinetics.
  • Cyclic voltammetry to study redox properties and radical cation formation.
  • Spectroelectrochemistry to confirm UV-vis spectra of radical cations.
  • Synthesis of copper hydride complexes with specific ligands.

Main Results:

  • The octahedral core of 84-electron copper hydride hexamers remains intact in solution.
  • Hydride ligands within the hexamers undergo rapid intramolecular rearrangement.
  • Single-electron transfer from [(Ph3P)CuH]6 to a pyridinium cation was observed.
  • A stable radical cation of [(Ph3P)CuH]6 was generated and characterized.
  • A new 48-electron copper hydride trimer, [(dppbz)CuH]3, was synthesized.

Conclusions:

  • 84-electron copper hydride hexamers exhibit significant solution stability.
  • Single-electron transfer is a viable reaction pathway for these copper hydride complexes.
  • The synthesis of [(dppbz)CuH]3 expands the scope of known copper hydride clusters.