Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Predicting Molecular Geometry02:27

Predicting Molecular Geometry

VSEPR Theory for Determination of Electron Pair Geometries
Valence Bond Theory02:42

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...
Valence Bond Theory02:45

Valence Bond Theory

Overview of Valence Bond Theory
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
Halogenation of Alkenes02:46

Halogenation of Alkenes

Halogenation is the addition of chlorine or bromine across the double bond in an alkene to yield a vicinal dihalide. The reaction occurs in the presence of inert and non-nucleophilic solvents, such as methylene chloride, chloroform, or carbon tetrachloride.
Consider the bromination of cyclopentene. Molecular bromine is polarized in the proximity of the π electrons of cyclopentene. An electrophilic bromine atom adds across the double bond, forming a cyclic bromonium ion intermediate.
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Mapping the crystallization landscape of rare earth MOFs: a high-throughput investigation of structure, kinetics, and selectivity.

Chemical science·2026
Same author

Transient Triamidoamine Neptunium(V)-Mono(Imido) Complexes: C-H Activations and Hydrogen Atom Transfer Driven by Effective Nuclear Charge.

Journal of the American Chemical Society·2026
Same author

Lifshitz Transition in Correlated Topological Semimetals.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Deterministic Control of Sn<sup>3+</sup> Valence and Electronic Phase Evolution in AgSnSe<sub>2</sub>.

Journal of the American Chemical Society·2026
Same author

Tuning optical properties and local lone-pair off-centering in "hollow" FA<sub>1-<i>x</i></sub> {<i>en</i>} <sub><i>x</i></sub> Pb <sub><i>η</i>-<i>y</i></sub> Sn <sub><i>y</i></sub> Br<sub>3</sub> perovskites.

Chemical science·2025
Same author

Probing <i>f</i>-Block Covalency at the Limits of Hard-Metal/Soft-Ligand Interactions through Chalcogenoether Complexes.

Journal of the American Chemical Society·2025

Video Experimental Relacionado

Updated: Jun 2, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

Dicloruro de tecnecio: un nuevo haluro binario que contiene enlaces múltiples metal-metal.

Frederic Poineau1, Christos D Malliakas, Philippe F Weck

  • 1Department of Chemistry, University of Nevada-Las Vegas, Las Vegas, Nevada 89154, USA. poineauf@unlv.nevada.edu

Journal of the American Chemical Society
|May 18, 2011
PubMed
Resumen

Los investigadores descubrieron el dicloruro de tecnecio, revelando una nueva estructura con un triple enlace TcTc. Este hallazgo, confirmado por difracción de rayos X y cálculos, avanza en la química inorgánica y la ciencia de los materiales.

Más Videos Relacionados

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

Videos de Experimentos Relacionados

Last Updated: Jun 2, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

Área de la Ciencia:

  • Química Inorgánica La Química Inorgánica es la química inorgánica.
  • Química del estado sólido.
  • Ciencia de los materiales Ciencia de los materiales.

Sus antecedentes:

  • La química del tecnecio es menos explorada debido a su radioactividad.
  • Comprender los haluros de tecnecio puede revelar uniones y motivos estructurales únicos.

Objetivo del estudio:

  • Para sintetizar y caracterizar un nuevo compuesto de dicloruro de tecnecio.
  • Para dilucidar la estructura de estado sólido y la unión metal-metal en el dicloruro de tecnecio.

Principales métodos:

  • Síntesis a partir del tecnecio y el cloro elementales.
  • Caracterización mediante difracción de rayos X de un solo cristal.
  • Cálculos de la estructura electrónica.

Principales resultados:

  • Síntesis exitosa y determinación estructural del dicloruro de tecnecio.
  • Descubrimiento de un nuevo tipo de estructura que presenta infinitas cadenas de prismas rectangulares que comparten la cara [Tc(2) Cl(8) ].
  • Observación de una corta distancia Tc-Tc (2.127(2) Å), indicativa de un enlace triple.
  • Soporte computacional para el enlace triple TcTc.

Conclusiones:

  • El dicloruro de tecnecio representa una nueva clase estructural en la química inorgánica.
  • El triple enlace TcTc es un hallazgo significativo en la química de los metales pesados de transición.
  • Este trabajo abre caminos para explorar otros haluros de tecnecio y compuestos relacionados.