Video Experimental Relacionado

Updated: May 20, 2026

High Precision Zinc Isotopic Measurements Applied to Mouse Organs

High Precision Zinc Isotopic Measurements Applied to Mouse Organs

Published on: May 22, 2015

¿Puede el zinc realmente existir en su estado de oxidación +III?

Tobias Schlöder¹, Martin Kaupp, Sebastian Riedel

¹Institut für Anorganische und Analytische Chemie, Albert-Ludwigs Universität Freiburg, Albertstrasse 21, D-79104 Freiburg im Breisgau, Germany.

Journal of the American Chemical Society

|July 11, 2012

Resumen

Los cálculos químicos cuánticos revelan que el predicho complejo Zn(III), Zn(AuF6) 3, no es termoquímicamente estable. Además, su formación no representaría un verdadero estado de oxidación del zinc.

Área de la Ciencia:

Química Inorgánica La Química Inorgánica es la química inorgánica.
Química teórica es la química teórica.
Química computacional es la química computacional.

Sus antecedentes:

Un estudio reciente predijo un complejo de zinc (III) termoquímicamente estable, Zn (AuF6) 3.3.
Esta predicción sugirió la posibilidad de un nuevo estado de alta oxidación para el zinc.

Objetivo del estudio:

Para investigar la viabilidad termoquímica del predicho complejo Zn(III), Zn(AuF6) 3.3.
Para determinar si el compuesto, si se forma, representaría un estado de oxidación válido de zinc.

Principales métodos:

Utilizando cálculos químicos cuánticos avanzados.
Empleando métodos teóricos para evaluar la estabilidad de los compuestos y los estados de oxidación.

Principales resultados:

Los cálculos demuestran que Zn(AuF6) 3 no es un compuesto termoquímicamente factible.
El estudio concluye que incluso si se sintetizara, el compuesto no exhibiría un estado de oxidación de Zinc (III) de acuerdo con las definiciones establecidas.

Conclusiones:

El predicho complejo Zn(III) es termodinámicamente inestable.
El marco teórico para los estados de oxidación del zinc (III) requiere una reevaluación a la luz de estos hallazgos.

Más Videos Relacionados

Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells

Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells

Published on: May 16, 2019

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

Videos de Conceptos Relacionados

Properties of Transition Metals

Properties of Transition Metals

Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.

Standard Electrode Potentials

Standard Electrode Potentials

On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...

Coordination Compounds and Nomenclature

Coordination Compounds and Nomenclature

In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...

Coordination Number and Geometry

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.

Ionic Bonding and Electron Transfer

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.

Oxidation Numbers

Oxidation Numbers

In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.