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

Coordination Number and Geometry02:57

Coordination Number and Geometry

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.
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
Adaptability of Cytoskeletal Filaments01:12

Adaptability of Cytoskeletal Filaments

The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments in the cytoskeleton determines their ability to perform various functions within the cell. It can undergo rapid reorganization during processes like cell division or remain stable for several hours as in the interphase. The adaptability of these filaments depends on stringent regulatory mechanisms. The microfilament and microtubules of the...
Clathrin Coated Vesicles01:12

Clathrin Coated Vesicles

Clathrin-coated vesicles use endocytosis to transport receptors and lysosomal hydrolases from the Golgi to the lysosome in the late secretory pathway. Clathrin-mediated endocytosis was the first described endocytic process, and Clathrin-coated vesicles remain one of the most well-studied transport vesicles. The molecular machinery that generates clathrin-coated vesicles comprises over 50 proteins that precisely coordinate vesicle formation. Cell surface receptors concentrated in indented sites...
Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order to...
Masonry Cavity Walls01:26

Masonry Cavity Walls

Cavity walls feature a hollow space between the outer and inner wythes, connected only by corrosion-resistant metal ties. When water seeps through the outer wythe, it descends within this cavity, intercepted by flashing and eventually exiting through weep holes. To enhance moisture resistance, the inner wythe's cavity side often receives damp-proofing, doubling as an air barrier. The cavity can also house insulation to mitigate heat transfer.
Maintaining a clean cavity during construction is...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Postsynthetic modification of N-heterocyclic diazoolefins <i>via</i> backbone metallation.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Visible light-accelerated formation of lipoprotein microgels within all-aqueous emulsions mediated by Au<sup>3</sup>.

Journal of colloid and interface science·2026
Same author

Bent N-Heterocyclic Allenes From a Well-Defined Titanium Vinylidene Complex.

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

Tiny lipoprotein sponges: How hen egg yolk high-density lipoprotein microgels hold and release hydrophobic molecules.

International journal of biological macromolecules·2026
Same author

A Metallosupramolecular Receptor for Squaraine Dyes Enabling Ultrafast Dark Resonance Energy Transfer.

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

Transition Metal Complexes with <i>N</i>-Heterocyclic Vinylidene Ligands.

Chimia·2025

Video Experimental Relacionado

Updated: Jun 8, 2026

A Do-it-yourself System for Scheduled Feeding of Laboratory Rodents in Their Home Cage
04:49

A Do-it-yourself System for Scheduled Feeding of Laboratory Rodents in Their Home Cage

Published on: June 6, 2025

Una jaula de coordinación con un tamaño de cavidad adaptable.

Sebastian Mirtschin1, Adam Slabon-Turski, Rosario Scopelliti

  • 1Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.

Journal of the American Chemical Society
|September 24, 2010
PubMed
Resumen

Una nueva jaula de coordinación hexanuclear se expande significativamente, creando una gran cavidad. Esta expansión permite la encapsulación exitosa de dos moléculas de coroneno dentro de su estructura.

Más Videos Relacionados

Preparation and Maintenance of Bioexclusion IsoPositive Cage Experiment for Human Fecal Transplantation into Germ-Free Mice
07:45

Preparation and Maintenance of Bioexclusion IsoPositive Cage Experiment for Human Fecal Transplantation into Germ-Free Mice

Published on: February 28, 2025

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents
09:01

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

Published on: July 8, 2015

Videos de Experimentos Relacionados

Last Updated: Jun 8, 2026

A Do-it-yourself System for Scheduled Feeding of Laboratory Rodents in Their Home Cage
04:49

A Do-it-yourself System for Scheduled Feeding of Laboratory Rodents in Their Home Cage

Published on: June 6, 2025

Preparation and Maintenance of Bioexclusion IsoPositive Cage Experiment for Human Fecal Transplantation into Germ-Free Mice
07:45

Preparation and Maintenance of Bioexclusion IsoPositive Cage Experiment for Human Fecal Transplantation into Germ-Free Mice

Published on: February 28, 2025

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents
09:01

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

Published on: July 8, 2015

Área de la Ciencia:

  • Química supramolecular de las moléculas.
  • Coordinación Química de la Coordinación
  • Ciencia de los materiales Ciencia de los materiales.

Sus antecedentes:

  • Las jaulas de coordinación son estructuras supramoleculares con propiedades sintonizables.
  • El control del tamaño de la cavidad es crucial para las aplicaciones de encapsulación molecular.

Objetivo del estudio:

  • Desarrollar una jaula de coordinación hexanuclear con una cavidad dinámica.
  • Para investigar la capacidad de la jaula para encapsular hidrocarburos aromáticos policíclicos.

Principales métodos:

  • Síntesis de un marco hexanuclear metálico-orgánico.
  • Difracción de rayos X de temperatura variable para estudiar cambios estructurales.
  • La adsorción de gas y la desorción son isotérmicas para determinar el volumen de la cavidad.
  • Cristalografía para confirmar la encapsulación de las moléculas invitadas.

Principales resultados:

  • La jaula de coordinación hexanuclear exhibe un cambio significativo en el volumen de la cavidad, de cerca de cero a más de 500 Å3).
  • La jaula encapsula con éxito dos moléculas de coroneno dentro de su cavidad expandida.
  • El análisis estructural confirmó la presencia y la orientación de las moléculas de coroneno encapsuladas.

Conclusiones:

  • La jaula de coordinación desarrollada demuestra una notable expansión dinámica de la cavidad.
  • Este comportamiento dinámico permite la encapsulación selectiva por tamaño de moléculas huéspedes grandes como el coroneno.
  • Los hallazgos abren nuevas vías para la química huésped-invitado y el reconocimiento molecular utilizando arquitecturas supramoleculares adaptables.