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Related Concept Videos

Experimental Determination of Chemical Formula02:37

Experimental Determination of Chemical Formula

The elemental makeup of a compound defines its chemical identity, and chemical formulas are the most concise way of representing this elemental makeup. When a compound’s formula is unknown, measuring the mass of its constituent elements is often the first step in determining the formula experimentally.
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

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...
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
Rules for Significant Figures01:44

Rules for Significant Figures

In any measurement, the precision of the measuring tool is an essential factor. An ordinary ruler, for example, can measure length to the closest millimeter; a caliper, on the other hand, can measure length to the nearest 0.01 mm. As a result, the caliper is a more precise measurement tool because it can measure extremely minute changes in length. The measurements will be more accurate if the measuring tool is more precise.
It should be emphasized that when we represent measured values, the...
Other Nuclides: 31P, 19F, 15N NMR01:16

Other Nuclides: 31P, 19F, 15N NMR

Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research.
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a high...
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...

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Related Experiment Video

Updated: Jun 6, 2026

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer
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Mg44.29Ru7.

Junhui Li1, Changzeng Fan1,2, Bin Wen1

  • 1State Key Laboratory of Metastable Materials Science and Technology Yanshan University,Qinhuangdao 066004 People's Republic of China.

Iucrdata
|September 8, 2025
PubMed
Summary
This summary is machine-generated.

High-pressure sintering of MgRuB yielded a novel cubic phase, Mg44.29Ru7. This complex magnesium-ruthenium compound exhibits the Mg29-xPt4+y structure type.

Keywords:
Mg–Ru7 phasecrystal structurehigh-pressure synthesisinter­metallics

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Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Crystallography

Background:

  • Complex intermetallic compounds with A6B stoichiometry are of significant interest.
  • Understanding the structural diversity in magnesium-ruthenium systems is crucial for materials development.

Purpose of the Study:

  • To synthesize and characterize a new phase in the Mg-Ru-B system.
  • To determine the crystal structure and symmetry of the novel compound.

Main Methods:

  • High-pressure sintering of a MgRuB mixture.
  • X-ray diffraction analysis to determine crystal structure and space group.

Main Results:

  • A cubic phase with the composition Mg44.29Ru7 was successfully synthesized.
  • The new phase exhibits space-group symmetry F43m.
  • The structure was identified as belonging to the Mg29-xPt4+y type.

Conclusions:

  • A novel complex magnesium-ruthenium phase was discovered.
  • The Mg44.29Ru7 phase represents a new structural type within complex A6B compounds.
  • This finding expands the known structural landscape of magnesium-ruthenium intermetallics.