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Переходные металлы и координационные комплексы

Свойства переходных металлов
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups…
Координационные соединения и номенклатура
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For…
Связи металл-лиганд
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain…
Координационное число и геометрия
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers…
Структурная изомерия
Isomerism in Complexes Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can…
Стереоизомерия
Isomers are different chemical species that have the same chemical formula. Transition metal complexes often exist as geometric isomers, in which…
Теория Валентности Бонда
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from…
Теория кристаллического поля - октаэдрические комплексы
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons…
Теория кристаллического поля - тетраэдрические и квадратно-плоские комплексы
Tetrahedral Complexes Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes…
Цвета и магнетизм
Color in Coordination Complexes When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals.…
Приготовление SNS Cobalt (II) Пинцер Модель комплексов печени Алкоголь Дегидрогеназы
Chemical model complexes are prepared to represent the active site of an enzyme. In this protocol, a family of tridentate pincer ligand precursors…
Кулоновская взрыв изображений как инструмент для различения стереоизомеров
This article shows how the COLTRIMS (Cold Target Recoil Ion Momentum Spectroscopy) or the "reaction microscope" technique can be used to distinguish…
Лиганд опосредованной зарождения и роста наночастиц металла палладия
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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