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

Receptor-mediated Endocytosis01:39

Receptor-mediated Endocytosis

110.6K
Overview
110.6K
Amino acids03:42

Amino acids

104.6K
Amino acids are the monomers that comprise proteins. Each amino acid has the same fundamental structure, which consists of a central carbon atom, or the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom. Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. There are 20 common amino acids present in proteins, each with a different R group. Variation in the amino acid sequence is responsible for...
104.6K
Mixtures of Acids03:27

Mixtures of Acids

21.6K
The pH of a solution containing an acid can be determined using its acid dissociation constant and its initial concentration. If a solution contains two different acids, then its pH can be determined using one of several methods depending upon the relative strength of the acids and their dissociation constants.
A Mixture of a Strong Acid and a Weak Acid
In a mixture of a strong acid and a weak acid, the strong acid dissociates completely and becomes a source of almost all the hydronium ions...
21.6K
Polyprotic Acids03:38

Polyprotic Acids

31.8K
Acids are classified by the number of protons per molecule that they can give up in a reaction. Acids such as HCl, HNO3, and HCN that contain one ionizable hydrogen atom in each molecule are called monoprotic acids. Their reactions with water are:
31.8K
Nucleic acids02:43

Nucleic acids

188.7K
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...
188.7K
Nucleic Acids02:43

Nucleic Acids

49.8K
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...
49.8K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

<i>S</i>-Oxide <i>peri</i>-Annulated Blatter Radicals: A Paradigm for Chiral Radicals.

Journal of the American Chemical Society·2026
Same author

Rediscovering Sodium Ionophores as Selective Agents for Lithium Recognition and Extraction.

Angewandte Chemie (International ed. in English)·2026
Same author

Donor-Acceptor Pentacene Analogues With Near-Infrared Emission and Tunable Aromaticity.

Angewandte Chemie (International ed. in English)·2026
Same author

Photostable π-Expanded Furans via Base-Mediated Quinone Oxygen-Annulation.

The Journal of organic chemistry·2026
Same author

The versatile world of cumulene chemistry.

Chemical science·2025
Same author

Porphyrin-Acene Dyads for Controlled Singlet Oxygen Generation and Depletion.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025

Video Experimental Relacionado

Updated: Jan 22, 2026

Chemical Dimerization-Induced Protein Condensates on Telomeres
08:52

Chemical Dimerization-Induced Protein Condensates on Telomeres

Published on: April 12, 2021

3.6K

Dimerización mediada por ácido de TIPS-Pentaceno

Vishali Sharma1, Paulina Bartos2, Maja Morawiak1

  • 1Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.

The Journal of organic chemistry
|January 20, 2026
PubMed
Resumen

Los ácidos fuertes hacen que el TIPS-pentaceno (TIPS-Pc) se dimerice formando un catión radical. Esta dimerización desencadenada por ácido es una vía de degradación recién identificada para este semiconductor orgánico.

Más Videos Relacionados

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

11.6K
Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization
08:57

Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization

Published on: October 6, 2019

10.7K

Videos de Experimentos Relacionados

Last Updated: Jan 22, 2026

Chemical Dimerization-Induced Protein Condensates on Telomeres
08:52

Chemical Dimerization-Induced Protein Condensates on Telomeres

Published on: April 12, 2021

3.6K
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

11.6K
Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization
08:57

Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization

Published on: October 6, 2019

10.7K

Área de la Ciencia:

  • Electrónica orgánica
  • Ciencia de materiales
  • Degradación química

Sus antecedentes:

  • El TIPS-pentaceno (TIPS-Pc) es un semiconductor orgánico bien establecido.
  • Comprender las vías de degradación es crucial para la estabilidad del material y la longevidad del dispositivo.

Objetivo del estudio:

  • Investigar el mecanismo de dimerización inducida por ácido en TIPS-Pc.
  • Identificar el papel de los ácidos de Brønsted fuertes en la degradación de TIPS-Pc.

Principales métodos:

  • Tratamiento de TIPS-Pc con ácidos de Brønsted fuertes como el ácido trifluoroacético (TFA).
  • Estudios mecanísticos que involucran análisis espectroscópico y pruebas isotópicas.
  • Cálculos de Teoría de Funcionales de Densidad (DFT) para modelar la vía de reacción.

Principales resultados:

  • El TIPS-Pc experimenta dimerización cuando se expone a ácidos fuertes.
  • La reacción procede a través de la oxidación del núcleo de pentaceno a un catión radical.
  • El catión radical luego sufre una cicloadición [4 + 2] mediada por radicales con una molécula neutra de TIPS-Pc.
  • El dímero aislado 1 se obtuvo después de la neutralización con trietilamina.

Conclusiones:

  • La dimerización inducida por ácido es una vía de degradación no reconocida previamente para TIPS-Pc.
  • El mecanismo implica cicloadición impulsada por catión radical desencadenada por ácido.
  • Este hallazgo tiene implicaciones para la estabilidad y aplicación de TIPS-Pc en electrónica orgánica.