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

Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview01:32

Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview

2.6K
Cyanohydrins are compounds that contain –CN and –OH groups on the same carbon atom. They are formed by the nucleophilic addition of the cyanide ions to the carbonyl group. Cyanide ions are highly basic and nucleophilic and can be generated from HCN under aqueous conditions. However, since HCN is a weak acid, the number of cyanide ions generated is very small. Hence, a small amount of base or KCN/NaCN is added to HCN to increase the concentration of the cyanide ions in the reaction...
2.6K
Colors and Magnetism03:02

Colors and Magnetism

11.5K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.5K
Coordination Number and Geometry02:57

Coordination Number and Geometry

15.5K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
15.5K
Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism01:10

Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism

3.0K
Cyanohydrins are formed when cyanide nucleophiles and carbonyl compounds like aldehydes and ketones react. A strong base, the cyanide ion, catalyzes cyanohydrin formation. The ions are generated from HCN under aqueous conditions. Once the cyanide ions are generated, the first step involves the nucleophilic attack of the cyanide ions on the electrophilic carbonyl carbon. This attack shifts the π electrons from the C=O to the oxygen atom forming the alkoxide ion intermediate. The alkoxide anion...
3.0K
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions01:20

Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

1.8K
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
1.8K
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

929
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.
929

You might also read

Related Articles

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

Sort by
Same author

High-Pressure Investigation of the I-N System: Discovery of the Nitric Ozonide [N<sub>3</sub>]<sup>3-</sup> ("Ozonitride") Species and Multicenter Bonding in Iodine Frameworks.

Journal of the American Chemical Society·2026
Same author

Surface processes darkening the southwestern ice sheet of Kalaallit Nunaat (Greenland).

Science advances·2026
Same author

Highly stable active core microbiomes in Greenland cryoconite holes during the bare ice period.

FEMS microbiology ecology·2026
Same author

Single-cell ionomes of terrestrial cryosphere algae.

Communications earth & environment·2026
Same author

Characterization of Stable NiO <i><sub>x</sub></i> /SrTaO <i><sub>x</sub></i> N <i><sub>y</sub></i> Bilayers Boosting the Oxygen Evolution Reaction for Solar Water Splitting.

Small science·2026
Same author

Global hotspots of particulate organic carbon losses under climate change.

Nature communications·2026

Related Experiment Video

Updated: May 30, 2025

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles
07:47

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles

Published on: November 27, 2015

10.8K

The Mixed Transition-Metal Cyanamide MnCr2(NCN)4.

Alex J Corkett1, Marharyta Okhrymenko1, Vladimir Roddatis2

  • 1Institute of Inorganic Chemistry, RWTH Aachen University, 52056 Aachen, Germany.

Inorganic Chemistry
|January 30, 2025
PubMed
Summary

The new transition-metal cyanamide MnCr₂(NCN)₄ exhibits an ordered structure with potential cation disorder. It shows antiferromagnetic interactions transitioning to a ferrimagnetic state below 160 K.

More Related Videos

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
09:45

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Published on: March 20, 2017

10.3K
Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
07:56

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

7.9K

Related Experiment Videos

Last Updated: May 30, 2025

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles
07:47

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles

Published on: November 27, 2015

10.8K
Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
09:45

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Published on: March 20, 2017

10.3K
Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
07:56

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

7.9K

Area of Science:

  • Solid-state chemistry
  • Materials science
  • Inorganic chemistry

Background:

  • Transition-metal cyanamides are an emerging class of materials with diverse magnetic and structural properties.
  • Understanding cation ordering and its impact on electronic and magnetic behavior is crucial for designing new functional materials.

Purpose of the Study:

  • To synthesize and characterize the novel ternary transition-metal cyanamide MnCr₂(NCN)₄.
  • To elucidate its crystal structure, cation distribution, and magnetic properties.

Main Methods:

  • Solid-state metathesis reaction for synthesis.
  • Powder X-ray diffraction (PXRD), neutron powder diffraction (NPD), and electron diffraction for structural analysis.
  • High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) for cation distribution.
  • UV-vis and X-ray absorption near-edge structure (XANES) for oxidation states.
  • Infrared (IR) spectroscopy for bonding character.
  • SQUID magnetometry for magnetic properties.

Main Results:

  • MnCr₂(NCN)₄ crystallizes in an orthorhombic [NiAs]-derived structure (Pbcn) with ordered Mn²⁺ and Cr³⁺ cations.
  • HAADF-STEM suggests localized cation disorder, particularly at the manganese site.
  • Spectroscopic data confirm divalent manganese and trivalent chromium, and reveal cyanamide moieties with mixed bond character.
  • Predominantly antiferromagnetic interactions were observed, with a transition to a ferrimagnetic state below 160 K.

Conclusions:

  • The study successfully synthesized and characterized MnCr₂(NCN)₄, revealing a complex interplay of cation ordering and disorder.
  • The magnetic behavior indicates a transition from antiferromagnetism to ferrimagnetism, offering potential for magnetic applications.