Video Experimental Relacionado

Updated: Oct 29, 2025

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

Published on: August 30, 2018

Síntesis, estructura y reactividad de un compuesto terminal de hidróxido de cadmio, [κ³-Tism^Pr]CdH

Matthew Hammond¹, Michael Rauch¹, Gerard Parkin¹

¹Department of Chemistry, Columbia University, New York, New York 10027, United States.

Journal of the American Chemical Society

|July 8, 2021

Resumen

Se sintetizó un nuevo compuesto de hidruro de cadmio, [κ³-Tism^Pr]CdH. Este hidruro de cadmio exhibe una reactividad diversa, experimentando reacciones de metástasis, inserción e abstracción de hidruro, expandiendo la química del organocadmio.

Área de la Ciencia:

Química organometálica
Química de coordinación
Química del grupo principal

Sus antecedentes:

Los compuestos de organocadmio son productos intermedios sintéticos muy versátiles.
El desarrollo de nuevos complejos de hidruro de cadmio es crucial para explorar nuevas vías de reacción.

Objetivo del estudio:

Para sintetizar y caracterizar un nuevo compuesto terminal de hidruro de cadmio, [κ³-Tism^Pr]CdH.
Para investigar la reactividad del enlace Cd-H en este nuevo complejo.

Principales métodos:

Síntesis de [κ³-Tism^Pr]CdH a través de reacciones que incluyen [κ³-Tism^Pr]CdN(SiMe₃) ₂ o [Tism^Pr]CdOSiPh₃ con PhSiH₃.
Caracterización del compuesto de hidruro de cadmio resultante y sus derivados.
Estudiar la reactividad del enlace Cd-H a través de las reacciones de metástasis, inserción e abstracción de hidruro.

Principales resultados:

Síntesis exitosa del compuesto terminal de hidrógeno de cadmio [κ³-Tism^Pr]CdH.
El enlace Cd-H sufre fácilmente reacciones de metástasis con haluros de alquilo y haluros de silicio.
Las reacciones de inserción con CO₂ y CS₂ producen formatos y ditiocarboxilatos correspondientes.
La abstracción de hidruro con B ((C₆F₅) ₃ da como resultado un complejo de cadmio monopiramidal trigonal único.

Conclusiones:

El [κ³-Tism^Pr]CdH sintetizado es un hidruro de organocadmio estable y reactivo.
La diversa reactividad del enlace Cd-H abre nuevas vías en la química del organocadmio.
La formación de una especie de cadmio monopiramidal trigonal destaca geometrías de coordinación inusuales.

Más Videos Relacionados

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Published on: March 20, 2017

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

Videos de Conceptos Relacionados

Stability of Substituted Cyclohexanes

Stability of Substituted Cyclohexanes

This lesson discusses the stability of substituted cyclohexanes with a focus on energies of various conformers and the effect of 1,3-diaxial interactions.
The two chair conformations of cyclohexanes undergo rapid interconversion at room temperature. Both forms have identical energies and stabilities, each comprising equal amounts of the equilibrium mixture. Replacing a hydrogen atom with a functional group makes the two conformations energetically non-equivalent.
For example, in...

Aromatic Hydrocarbon Cations: Structural Overview

Aromatic Hydrocarbon Cations: Structural Overview

Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...

Structure of Conjugated Dienes

Structure of Conjugated Dienes

Introduction
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...

Stability of Conjugated Dienes

Stability of Conjugated Dienes

Introduction
A comparison of the enthalpies of hydrogenation of dienes reveals that conjugated dienes release less heat on hydrogenation, rendering them more stable than their nonconjugated analogs.

Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview

Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview

Cyanohydrins are compounds that contain –CN and –OH groups on the same carbon atom. They are formed by the nucleophilic addition of the cyanide ions to the carbonyl group. Cyanide ions are highly basic and nucleophilic and can be generated from HCN under aqueous conditions. However, since HCN is a weak acid, the number of cyanide ions generated is very small. Hence, a small amount of base or KCN/NaCN is added to HCN to increase the concentration of the cyanide ions in the reaction...

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.