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

Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

5.8K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
5.8K
Structure and Nomenclature of Thiols and Sulfides02:17

Structure and Nomenclature of Thiols and Sulfides

5.7K
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,...
5.7K
Cross-reactivity00:42

Cross-reactivity

33.1K
Overview
33.1K
Reactivity of Enols01:18

Reactivity of Enols

4.1K
Enols are a class of compounds where a hydroxyl group is attached to a carbon–carbon double bond, which implies that it is a vinyl alcohol. A carbonyl compound with an α hydrogen undergoes keto–enol tautomerism and remains in equilibrium with its tautomer, the enol form. Usually, the keto tautomer is present in a higher concentration than the enol tautomer due to the higher bond energy of C=O compared to C=C. Moreover, the direction of the keto–enol equilibrium is...
4.1K
Mitochondrial Precursor Proteins01:39

Mitochondrial Precursor Proteins

3.8K
Mitochondrial precursors are partially unfolded or loosely folded polypeptide chains. Newly synthesized precursors are inhibited from spontaneously folding into their native conformation by the cytosolic chaperones, heat shock proteins 70 (Hsp70), and mitochondrial import stimulation factors (MSFs). Precursors bound to MSFs are guided to the TOM70-TOM37 receptors, while precursors bound to Hsp70  chaperones are targetted to TOM20-TOM22 receptor complexes.
Most of the mitochondrial...
3.8K
Reactivity of Enolate Ions01:23

Reactivity of Enolate Ions

3.4K
Enolate ions are formed by the acid–base reaction of a carbonyl compound with a base. This leads to deprotonation of the α hydrogen atom, leading to a resonance-stabilized enolate ion where one of the contributing structures is an oxyanion, which imparts additional stability. Therefore, the proton on the α carbon is more acidic in nature than that of other sp3-hybridized C–H bonds but less acidic than those in O–H bonds where the negative charge in the conjugate...
3.4K

You might also read

Related Articles

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

Sort by
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

CRISPR Genome Editing and the Future of Leukaemia Immunotherapy.

Health science reports·2026
Same author

Reversible Magneto-ionic Modification of Metallic Magnetic Thin Films.

ACS applied electronic materials·2026
Same author

Two-dimensional Sc2N MXenes as efficient solid catalysts for CO2 adsorption and conversion: a density functional theory study.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026

Related Experiment Video

Updated: Feb 6, 2026

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

2.4K

A highly reactive precursor in the iron sulfide system.

Adriana Matamoros-Veloza1,2, Oscar Cespedes3, Benjamin R G Johnson3

  • 1School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT, UK. A.MatamorosVeloza@leeds.ac.uk.

Nature Communications
|August 9, 2018
PubMed
Summary

Researchers synthesized a novel iron sulfide (Fe-S) nanoparticulate phase, FeSnano. This phase is a crucial precursor to mackinawite, enhancing stability and reactivity for applications in prebiotic chemistry and green catalysis.

More Related Videos

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
05:08

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay

Published on: January 31, 2022

5.6K
Separation of Uranium and Thorium for 230Th-U Dating of Submarine Hydrothermal Sulfides
08:43

Separation of Uranium and Thorium for 230Th-U Dating of Submarine Hydrothermal Sulfides

Published on: May 20, 2019

7.3K

Related Experiment Videos

Last Updated: Feb 6, 2026

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

2.4K
Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
05:08

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay

Published on: January 31, 2022

5.6K
Separation of Uranium and Thorium for 230Th-U Dating of Submarine Hydrothermal Sulfides
08:43

Separation of Uranium and Thorium for 230Th-U Dating of Submarine Hydrothermal Sulfides

Published on: May 20, 2019

7.3K

Area of Science:

  • Geochemistry
  • Astrobiology
  • Materials Science
  • Catalysis

Background:

  • Iron-sulfur (Fe-S) phases are critical in early Earth geochemistry, potentially facilitating the origin of life through prebiotic molecule synthesis.
  • Fe-S materials are currently investigated for advanced applications in green catalysis and energy storage technologies.
  • Mackinawite is traditionally considered the primary precipitate in iron sulfide systems.

Purpose of the Study:

  • To report the synthesis and structural characterization of a previously unidentified nanoparticulate iron sulfide phase (FeSnano).
  • To establish FeSnano as a necessary precursor to mackinawite.
  • To elucidate the structural features of FeSnano and their impact on its stability and reactivity.

Main Methods:

  • Synthesis of nanoparticulate iron sulfide (FeSnano).
  • Structural analysis of the synthesized phase.
  • Determination of the relationship between FeSnano and mackinawite formation.

Main Results:

  • A novel nanoparticulate iron sulfide phase (FeSnano) was successfully synthesized.
  • FeSnano was identified as a necessary solid-phase precursor to mackinawite.
  • The structure of FeSnano features tetrahedral iron coordinated with monosulfide and polysulfide sulfur species, contributing to its enhanced stability and reactivity.

Conclusions:

  • The discovery of FeSnano refines our understanding of iron sulfide precipitation pathways.
  • FeSnano's unique structure and precursor role offer new avenues for research in prebiotic chemistry and sustainable catalysis.
  • The enhanced reactivity of FeSnano highlights its potential for energy storage applications.