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

Ionic Crystal Structures02:42

Ionic Crystal Structures

17.7K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.7K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

31.0K
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...
31.0K
Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

5.1K
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
5.1K
Structures of Solids02:22

Structures of Solids

18.2K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
18.2K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

48.6K
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,...
48.6K
Structural Isomerism02:34

Structural Isomerism

21.7K
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...
21.7K

You might also read

Related Articles

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

Sort by
Same author

Light-Controlled Topology Switching Enables Continuous Modulation of Thermally Induced Phase Behavior in Polymer Solutions.

ACS macro letters·2026
Same author

Brain cortex activity of patients with disorders of consciousness under familiar and unfamiliar voice of subject's own name: an fNIRS-based study.

Frontiers in neurology·2026
Same author

Low-complexity mitigation of multipath interference in PAM-4 IM/DD systems via recursive filtering.

Optics express·2026
Same author

Assessing the Alignment of Long-Term Care Insurance Benefits and Service Provision: Evidence from Shandong, China and Implications for Implementation Risk.

Risk management and healthcare policy·2026
Same author

A persistent germylyne radical enabling reversible σ-dimerization and diverse bond activation.

Nature communications·2026
Same author

The Impact of Perceived Algorithmic Control on Gig Workers' Turnover Intention: Mediating Roles of Perceived Usefulness and Psychological Contract Breach.

Behavioral sciences (Basel, Switzerland)·2026

Related Experiment Video

Updated: Feb 12, 2026

Fully Autonomous Characterization and Data Collection from Crystals of Biological Macromolecules
07:11

Fully Autonomous Characterization and Data Collection from Crystals of Biological Macromolecules

Published on: March 22, 2019

7.3K

Bis(phenothiazine)arene diradicaloids: isolation, characterization and crystal structures.

Xingyong Wang1, Zaichao Zhang, You Song

  • 1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China. xpwang@nju.edu.cn.

Chemical Communications (Cambridge, England)
|June 26, 2015
PubMed
Summary

Researchers synthesized novel bis(phenothiazine)arene dications, revealing nearly pure diradical properties. Orthogonal π-system alignment is key to tuning electronic structures in these advanced organic materials.

More Related Videos

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention
05:21

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

Published on: August 30, 2018

7.9K
Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
08:01

Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand

Published on: September 8, 2016

8.9K

Related Experiment Videos

Last Updated: Feb 12, 2026

Fully Autonomous Characterization and Data Collection from Crystals of Biological Macromolecules
07:11

Fully Autonomous Characterization and Data Collection from Crystals of Biological Macromolecules

Published on: March 22, 2019

7.3K
The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention
05:21

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

Published on: August 30, 2018

7.9K
Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
08:01

Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand

Published on: September 8, 2016

8.9K

Area of Science:

  • Organic Chemistry
  • Materials Science
  • Computational Chemistry

Background:

  • Bis(triarylamine) dications are of interest for their unique electronic properties.
  • Understanding the electronic structure and diradical character is crucial for designing new materials.

Purpose of the Study:

  • To synthesize and structurally characterize a new class of bis(phenothiazine)arene dications.
  • To investigate the electronic structures and diradical character of these compounds.
  • To explore the role of π-system alignment in tuning electronic properties.

Main Methods:

  • Isolation and structural characterization using weakly coordinating anions.
  • Experimental investigation of electronic structures.
  • Density Functional Theory (DFT) calculations.

Main Results:

  • Successful isolation and characterization of bis(phenothiazine)arene dications.
  • Compounds exhibit singlet ground states with significant diradical character.
  • These dications can be considered nearly pure diradicals.

Conclusions:

  • Orthogonal alignment of spin-carrying π-systems is critical for tuning the electronic structures of bis(triarylamine) dications.
  • This work provides insights into the fundamental electronic properties of diradical organic compounds.
  • Potential applications in organic electronics and spintronics.