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Capítulo 20
Propiedades de los Metales de Transición
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups…
Compuestos de Coordinación y su Nomenclatura
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For…
Enlaces Metal-Ligando
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain…
Número de Coordinación y Geometría Molecular
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers…
Isomerismo Estructural
Isomerism in Complexes Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can…
Estereoisomerismo
Isomers are different chemical species that have the same chemical formula. Transition metal complexes often exist as geometric isomers, in which…
Teoría del Enlace de Valencia
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from…
Teoría del Campo Cristalino - Complejos Octaédricos
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons…
Teoría del Campo Cristalino - Complejos Tetraédricos y Cuadrados Planos
Tetrahedral Complexes Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes…
Los Colores y el Magnetismo
Color in Coordination Complexes When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals.…
Preparación de SNS Cobalt(II) Pincer Model Complexes of Liver Alcohol Dehydrogenase
Chemical model complexes are prepared to represent the active site of an enzyme. In this protocol, a family of tridentate pincer ligand precursors…
Imágenes de explosión de Coulomb como herramienta para distinguir entre los estereoisómeros
This article shows how the COLTRIMS (Cold Target Recoil Ion Momentum Spectroscopy) or the "reaction microscope" technique can be used to distinguish…
Mediada por el ligando de la nucleación y crecimiento de nanopartículas de Metal de paladio
The size, size distribution and stability of colloidal nanoparticles are greatly affected by the presence of capping ligands. Despite the key…

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