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

Bonding in Metals02:32

Bonding in Metals

52.1K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
52.1K
Metallic Solids02:37

Metallic Solids

20.5K
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....
20.5K
Alkali Metals03:06

Alkali Metals

24.2K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
24.2K
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

24.0K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.0K
Properties of Transition Metals02:58

Properties of Transition Metals

29.6K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
29.6K
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

928
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
928

You might also read

Related Articles

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

Sort by
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

Sodium Tetraazidoaurate(III)-From Na[AuCl<sub>4</sub>]·2H<sub>2</sub>O to Na[Au(N<sub>3</sub>)<sub>4</sub>] and Beyond One Step at a Time.

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

Unusual Magnetic Order in Eu<sub>11-<i>x</i></sub> Hg<sub>54+<i>x</i></sub>.

ACS organic & inorganic Au·2026
Same author

Low-Temperature Defect Healing in the Layered Zintl Phase Li<sub>2</sub>ZnSi.

Inorganic chemistry·2026
Same journal

Selective Degradation of Polyurethanes in Mixed Plastic Wastes via Ir-Catalyzed Hydrogenolysis.

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

Covalent Organic Framework Photocatalysts: Decoding Linkage Chemistry in Hydrogen Peroxide Synthesis From Air and Water.

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

Anomeric Amide Enabled Divergent Synthesis of Unsymmetrical Ureas, Carbamates, Thioesters, and Amides From Aldehydes.

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

Anisotropic Magneto-Chiral Dichroism in Lanthanide Complexes.

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

Engineering LE-CT State Synergy in Aminoboranes for Single Molecule White Light Emission and Dual-Mode Chiroptical/Phosphorescence Output.

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

Editable Hydrogen Bond Network Within the Electric Double Layer for CO<sub>2</sub> Reduction.

Angewandte Chemie (International ed. in English)·2026
See all related articles

Related Experiment Video

Updated: Jan 21, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

49.1K

Unconventional Metal-Framework Interaction in MgSi5.

Julia-Maria Hübner1, Wilder Carrillo-Cabrera1, Yurii Prots1

  • 1Chemische Metallkunde, Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187, Dresden, Germany.

Angewandte Chemie (International Ed. in English)
|July 25, 2019
PubMed
Summary
This summary is machine-generated.

Researchers synthesized a new silicon-rich compound, MgSi5, using high-pressure conditions. This novel material features a unique framework of silicon cages enclosing magnesium atoms, revealing new insights into silicon-based materials.

Keywords:
cage compoundschemical bondinghigh-pressure synthesismagnesiumsilicon

More Related Videos

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior
06:45

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

9.8K
A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

3.0K

Related Experiment Videos

Last Updated: Jan 21, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

49.1K
Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior
06:45

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

9.8K
A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

3.0K

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Crystallography

Background:

  • High-pressure synthesis is crucial for discovering novel materials with unique structures.
  • Silicon-rich compounds are of interest due to their diverse bonding capabilities and potential applications.

Purpose of the Study:

  • To synthesize and characterize a new silicon-rich compound, MgSi5.
  • To determine the crystal structure and understand the atomic bonding within MgSi5.

Main Methods:

  • High-pressure, high-temperature synthesis.
  • Electron diffraction tomography for initial structure determination.
  • X-ray diffraction for precise crystal structure analysis.

Main Results:

  • Successful synthesis of MgSi5, a new silicon-rich cage compound.
  • Determination of the crystal structure (space group Cmme) with a novel framework of Si15 cages enclosing Mg atoms.
  • Identification of two types of empty Si8 cages and characterization of Mg-Si and Si-Si bonding.

Conclusions:

  • MgSi5 represents a new structural type in silicon-based materials.
  • The bonding in MgSi5 involves two-center Si-Si bonds, multi-center Mg-Si bonds, and lone-pair-like interactions.
  • This discovery expands the known chemistry of magnesium silicides and silicon frameworks.