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

16.0K
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...
16.0K
Metallic Solids02:37

Metallic Solids

19.8K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
19.8K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

28.7K
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...
28.7K
Structures of Solids02:22

Structures of Solids

16.5K
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...
16.5K
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

10.6K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
10.6K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

45.8K
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,...
45.8K

You might also read

Related Articles

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

Sort by
Same author

Antiferromagnetic Arsenides U<sub>8</sub>Co<sub>42</sub>As<sub>25</sub> and UCo<sub>3</sub>As<sub>2</sub>.

Inorganic chemistry·2026
Same author

Symmetry-Broken Ground State and Phonon-Mediated Superconductivity in Kagome CsV_{3}Sb_{5}.

Physical review letters·2026
Same author

Sm<sub>26.25</sub>Ge<sub>22.75</sub>O<sub>5</sub>: Oxidic Sm<sub>30</sub>Ge<sub>4</sub>O<sub>5</sub> Superclusters Embedded in a Zintl Polyanionic Framework.

Inorganic chemistry·2026
Same author

Resonant Domain Wall Dynamics in a Three-Dimensional Magnetic Nano Double Helix.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Giant Magnetostriction in Ferrimagnetic SmFe<sub>5</sub>As<sub>3</sub>.

Angewandte Chemie (International ed. in English)·2026
Same author

Emergent Heavy-Fermion Physics in a Family of Topological Insulators <i>R</i>AsS (<i>R</i> = Y, La, and Sm).

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: Nov 7, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.7K

Crystal Structures of AlCr2 and MoSi2 : Same Structure Type vs. Different Bonding Pattern.

Milica D Milosavljević1, Ulrich Burkhardt1, Philip J W Moll1,2

  • 1Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187, Dresden, Germany.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|April 30, 2021
PubMed
Summary

Researchers successfully synthesized hidden phase AlCr2 single crystals. Differences in crystal disorder explain variations in unit cell parameters and bonding compared to MoSi2.

Keywords:
crystal structuredisorderfocused-ion beamintermetallic phasesingle crystal growth

More Related Videos

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.0K
Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication
08:50

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication

Published on: November 28, 2017

9.4K

Related Experiment Videos

Last Updated: Nov 7, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.7K
Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.0K
Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication
08:50

Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication

Published on: November 28, 2017

9.4K

Area of Science:

  • Materials Science
  • Crystallography
  • Solid-State Chemistry

Background:

  • The
  • hidden
  • phase of AlCr2 has been difficult to synthesize and characterize.
  • Understanding its crystal structure and chemical bonding is crucial for materials development.

Purpose of the Study:

  • To prepare single crystals of the hidden phase AlCr2 using advanced techniques.
  • To analyze the structural and chemical bonding properties of AlCr2.
  • To compare AlCr2 with related compounds like MoSi2.

Main Methods:

  • Modified sample preparation techniques.
  • High-resolution X-ray diffraction analysis.
  • Microscopy and micro-fabrication.
  • Chemical bonding analysis.

Main Results:

  • Successfully prepared single crystals of the hidden phase AlCr2.
  • Identified varying degrees of disorder in crystals, correlating with different unit cell parameters.
  • Revealed distinct chemical bonding in AlCr2 compared to MoSi2, related to element composition.

Conclusions:

  • The synthesis of hidden phase AlCr2 single crystals is now feasible.
  • Crystal disorder is a key factor influencing AlCr2's structural properties.
  • AlCr2 exhibits unique chemical bonding characteristics due to its composition.