Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Ionic Crystal Structures

Ionic Crystal Structures

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...

Metallic Solids

Metallic Solids

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. Many...

Hybridization of Atomic Orbitals I

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...

Valence Bond Theory

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...

VSEPR Theory and the Basic Shapes

VSEPR Theory and the Basic Shapes

Overview of VSEPR Theory

Structure and Nomenclature of Thiols and Sulfides

Structure and Nomenclature of Thiols and Sulfides

Thiols and sulfides are sulfur analogs of alcohols and ethers, respectively, where the sulfur atom takes the place of the oxygen atom. Thus, thiols are generally represented as RSH, where R is an alkyl substituent and —SH is the functional group. On the other hand, in sulfides, the central sulfur atom is bonded to two hydrocarbon groups on either side. Depending upon the type of group, sulfides can be either symmetrical or asymmetrical. Both thiols and sulfides display a bent geometry, similar...

You might also read

Related Articles

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

Sort by

Same author

Multiscale charge-carrier dynamics governed by surface energetics in facet-engineered NaNbO<sub>3</sub>/FeVO<sub>4</sub> photoanodes.

Nanoscale·2026

Same author

Surface Acidity-Activity Relationships in Transition-Metal Oxides Probed by NH<sub>3</sub>-TPD for the Oxygen Evolution Reaction and Biomass Oxidation.

Chemphyschem : a European journal of chemical physics and physical chemistry·2026

Same author

UNI-494 treatment improves measures of renal dysfunction and cardiac pathology in male rats receiving L-NAME and angiotensin II.

Physiological reports·2025

Same author

A Phase 2 Clinical Trial of Oxylanthanum Carbonate in Patients Receiving Maintenance Hemodialysis with Hyperphosphatemia.

Clinical journal of the American Society of Nephrology : CJASN·2025

Same author

UiO-66(Zr) : Tb<sup>3+</sup>, Eu<sup>3+</sup>/PVDF Composite Films as Dual-Responsive Optical Thermometers for Wide-Range Temperature Sensing.

Chemistry, an Asian journal·2025

Same author

Combination Oxylanthanum Carbonate and Tenapanor Lowers Urinary Phosphate Excretion in Rats.

Kidney360·2025

Search research articles

Related Experiment Video

Updated: Jul 19, 2026

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Published on: August 30, 2024

Mg(5.23)Sm(0.77)Sb4: an ordered superstructure derived from the Mg3Sb2 structure type.

Shalabh Gupta¹, Ashok K Ganguli, John D Corbett

¹Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.

Inorganic Chemistry

|September 27, 2006

Summary

Researchers synthesized a new polar intermetallic phase, Mg(5.231(8))Sm(0.769(8))Sb4, revealing a novel superstructure of the Mg3Sb2 type. This discovery expands the understanding of Zintl phases and rare-earth element substitutions in intermetallic compounds.

More Related Videos

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

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

Published on: June 7, 2018

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

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

Published on: November 28, 2017

Related Experiment Videos

Last Updated: Jul 19, 2026

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Published on: August 30, 2024

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

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

Published on: June 7, 2018

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

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

Published on: November 28, 2017

Area of Science:

Solid-state chemistry
Materials science
Crystallography

Background:

The Mg3Sb2 (anti-La2O3 type) structure is a known intermetallic framework.
Ternary intermetallic phases with rare-earth elements are of interest for their unique electronic and structural properties.
Understanding Zintl phases requires knowledge of electron counts and bonding characteristics.

Purpose of the Study:

To synthesize and characterize a novel ternary polar intermetallic phase involving magnesium, samarium, and antimony.
To investigate the structural and compositional variations within the Mg-Sm-Sb system.
To explore the relationship between structure, composition, and Zintl phase behavior.

Main Methods:

Solid-state reactions conducted at elevated temperatures (700-850 °C) in sealed refractory metal containers (Ta or Nb).
Consideration of the incongruent melting point during synthesis.
Single-crystal X-ray diffraction analysis to determine crystal structure, space group (P3), and lattice parameters (a = 4.618(1) Å, c = 14.902(6) Å).

Main Results:

Successful synthesis of the ternary phase Mg(5.231(8))Sm(0.769(8))Sb4.
Identification of a novel superstructure with a doubled c-axis, derived from the Mg3Sb2 type, attributed to the ordered arrangement of Mg and Sm ions in octahedral sites.
Discovery of two solid solution regions: Mg(6-x)SmxSb4 (x ≤ 1) and Mg(3-y)SmySb4 (0 ≤ y ≤ 1), indicating compositional flexibility.

Conclusions:

The synthesized phase represents the first example of a superstructure based on the Mg3Sb2-like structure, induced by ordering of Mg and Sm ions.
The retention of 3e- valence electron counts per antimony atom suggests these phases are electron-precise Zintl phases.
The study highlights the potential for complex structures and solid solutions in Mg-rare earth-pnictogen systems, with analogous compounds with other alkaline earth metals remaining unexplored.