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...
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Colors and Magnetism03:02

Colors and Magnetism

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 eye.
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...
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

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...

You might also read

Related Articles

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

Sort by
Same author

The prevalence of anxiety disorders among people living with HIV in India: A systematic review and meta-analysis.

Indian journal of psychiatry·2026
Same author

Fibrous/Sheet Nanostructures of Spin-Crossover Complexes With Glycyrrhetinic Acid Glycosides in Polar Solvents: Supramolecular Control of Mixed HS/LS State.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

mRNA vaccines in gastrointestinal cancers: Mechanistic basis, translational challenges, and emerging therapeutic strategies.

Critical reviews in oncology/hematology·2026
Same author

Systematic review and meta-analysis on depression burden among Type 2 diabetes patients in India.

Diabetology & metabolic syndrome·2026
Same author

Quantitative evaluation of intermolecular interactions in Fe(III) spin crossover systems <i>via</i> metal dilution.

Chemical communications (Cambridge, England)·2026
Same author

Burden of anxiety disorders among type 2 diabetes patients in india: A systematic review and Meta-analysis.

Journal of diabetes and metabolic disorders·2026

Related Experiment Video

Updated: Jun 20, 2026

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Metal dilution enabled quantum coherence in a planar Ni(III) dmit complex.

Ryuto Tominaga1, Sayan Saha1, Kanta Miyake1

  • 1Department of Chemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan. hayami@kumamoto-u.ac.jp.

Dalton Transactions (Cambridge, England : 2003)
|June 19, 2026
PubMed
Summary
This summary is machine-generated.

Magnetically diluted nickel-gold complexes show promise as molecular qubits. These materials exhibit properties like slow relaxation and Rabi oscillations, crucial for quantum computing applications.

More Related Videos

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

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

Related Experiment Videos

Last Updated: Jun 20, 2026

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

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

Area of Science:

  • Materials Science
  • Quantum Computing
  • Solid-State Chemistry

Background:

  • Intermolecular antiferromagnetic interactions in magnetic materials can hinder quantum behavior.
  • Molecular spin-based systems are being explored for quantum information processing.

Purpose of the Study:

  • To investigate the potential of magnetically diluted Ni(III)-dmit complexes as molecular spin qubits.
  • To reduce intermolecular interactions in Ni(III)-dmit complexes using a diamagnetic lattice.

Main Methods:

  • Preparation of magnetically diluted (TBA)[NixAu1-x(dmit)2] samples.
  • Incorporation of Ni(III) centers into an isostructural diamagnetic Au(dmit)2 lattice.
  • Characterization of magnetic properties and quantum behavior at low temperatures (4 K).

Main Results:

  • Successful preparation of magnetically diluted samples.
  • Observed slow magnetic relaxation and long spin-lattice relaxation times at 4 K.
  • Demonstrated clear Rabi oscillations, indicative of coherent spin manipulation.

Conclusions:

  • Planar Ni(III)-dmit complexes can function as molecular spin qubits.
  • Magnetic dilution effectively suppresses intermolecular antiferromagnetic interactions.
  • These findings support the development of molecular materials for quantum technologies.