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

Chemical Reactions01:19

Chemical Reactions

A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
A chemical reaction takes starting materials—the reactants—and changes them into different...
Synthesis and Decomposition Reactions02:17

Synthesis and Decomposition Reactions

Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes.
Chemical Reactions02:26

Chemical Reactions

A balanced chemical equation provides the information of chemical formulas of the reactants and products involved in the chemical change. A reaction’s stoichiometry helps predict how much of the reactant is needed to produce the desired amount of product, or in some cases, how much product will be formed from a specific amount of the reactant.
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However, in...
SN2 Reaction: Mechanism02:27

SN2 Reaction: Mechanism

The kinetic studies of SN2 reactions suggest an essential feature of its mechanism: it is a single-step process without intermediates. Here, both the nucleophile and the substrate participate in the rate-determining step.
The presence of the more electronegative halogen in the substrate creates a polarized carbon-halide bond. The halide pulls the electron cloud generating an electrophilic center at the carbon atom. Thus, the carbon atom carries a partial positive charge while the halide has a...
Introduction to Chemical Reactions01:23

Introduction to Chemical Reactions

All chemical reactions begin with a reactant, the general term for one or more substances entering the reaction. Sodium and chloride ions, for example, are the reactants in the production of table salt. One or more substances produced by a chemical reaction are called the product. Chemical reactions follow the law of conservation of mass, which means that matter cannot be created nor destroyed in a chemical reaction. The components of the reactants—the number of atoms and the elements—are all...
Types of Chemical Reactions: Exchange and Reversible01:08

Types of Chemical Reactions: Exchange and Reversible

An exchange reaction is a chemical reaction in which both synthesis and decomposition occur, chemical bonds are both formed and broken, and chemical energy is absorbed, stored, and released.
A special kind of exchange reaction is the oxidation-reduction reaction, or the redox reaction. These reactions involve the transfer of electrons from one compound to another. The electrons in these reactions commonly come from hydrogen atoms, which consist of an electron and a proton. A molecule gives up a...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Investigating proton shuttling and electrochemical mechanisms of amines in integrated CO<sub>2</sub> capture and utilization.

Nature communications·2024
Same author

A Highly Efficient Electrosynthesis of Formaldehyde Using a TEMPO-Based Polymer Electrocatalyst.

ChemSusChem·2024
Same author

Golden-rod Killing Horses.

The Journal of comparative medicine and veterinary archives·2022
Same author

On the subtle tuneability of cellulose hydrogels: implications for binding of biomolecules demonstrated for CBM 1.

Journal of materials chemistry. B·2020
Same author

Carbohydrate binding modules enhance cellulose enzymatic hydrolysis by increasing access of cellulases to the substrate.

Carbohydrate polymers·2019
Same author

BIVALVE HEMOCYANIN: STRUCTURAL, FUNCTIONAL, AND PHYLOGENETIC RELATIONSHIPS.

The Biological bulletin·2018

Video Experimental Relacionado

Updated: Jul 17, 2026

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations
13:09

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations

Published on: January 4, 2018

Comprender las reacciones orgánicas sólidas/sólidas.

G Rothenberg1, A P Downie, C L Raston

  • 1York Green Chemistry Group, Chemistry Department, University of York, Heslington, York YO10 5DD, UK.

Journal of the American Chemical Society
|September 6, 2001
PubMed
Resumen

La mayoría de las reacciones orgánicas en fase sólida implican una fase líquida formada por la molienda de reactivos sólidos. Esta formación de mezcla eutectica explica la cinética de la reacción y desafía la noción de verdaderas reacciones de fase sólida.

Más Videos Relacionados

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope
14:21

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

Published on: July 24, 2021

Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion
06:48

Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion

Published on: May 9, 2025

Videos de Experimentos Relacionados

Last Updated: Jul 17, 2026

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations
13:09

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations

Published on: January 4, 2018

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope
14:21

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

Published on: July 24, 2021

Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion
06:48

Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion

Published on: May 9, 2025

Área de la Ciencia:

  • Química orgánica es la química orgánica.
  • Ciencia de los materiales Ciencia de los materiales.
  • Química Física es la química física.

Sus antecedentes:

  • Investigar las reacciones orgánicas entre las partículas sólidas es crucial para el desarrollo de nuevas metodologías sintéticas.
  • Se informa que muchas reacciones ocurren en la fase sólida, pero sus mecanismos requieren aclaración.

Objetivo del estudio:

  • Para investigar el concepto de las reacciones orgánicas en fase sólida.
  • Para determinar el papel de los cambios de fase en las reacciones entre reactivos sólidos.

Principales métodos:

  • Análisis de 19 reacciones orgánicas de "fase sólida" reportadas.
  • Mezcla mecánica ( molienda) de reactivos sólidos.
  • Observación de los cambios de fase (liquefacción) y cinética de reacción.

Principales resultados:

  • La molienda de reactivos sólidos suele formar una fase líquida, a menudo una mezcla eutectica con un punto de fusión por debajo de la temperatura ambiente.
  • Esta licuefacción ocurre tanto en reacciones catalíticas como no catalíticas, incluidas las condensaciones de aldol, las oxidaciones de Baeyer-Villiger y las brominaciones aromáticas.
  • La cinética de reacción observada se explica por la transición de la fase sólida a la fase líquida.

Conclusiones:

  • Las verdaderas reacciones de fase sólida entre partículas macroscópicas son raras; la licuefacción es un fenómeno común.
  • La formación eutectica o peritectica es clave para comprender las reacciones que implican la mezcla mecánica de reactivos sólidos.
  • Un modelo general para sistemas reactivos que involucran reactivos sólidos debe tener en cuenta la formación potencial de la fase líquida.