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Химическая связь: молекулярная геометрия и теории связи

Теория VSEPR и основные формы
Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular structure, including approximate bond angles around…
Теория VSEPR и эффект неподелённых пар
It is important to note that electron-pair geometry around a central atom is not the same thing as its molecular structure. Molecular structure…
Прогнозирование молекулярной геометрии
The following procedure uses VSEPR theory to determine the electron pair geometries and the molecular structures: Write the Lewis structure of…
Молекулярная форма и полярность
Polar covalent bonds connect two atoms with differing electronegativities, leaving one atom with a partial positive charge (δ+) and the other…
Теория Валентных Связей
Valence bond theory describes a covalent bond as the overlap of half-filled atomic orbitals (each containing a single electron) that yield a pair…
Гибридизация атомных орбиталей I
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an…
Гибридизация атомных орбиталей II
To describe the five bonding orbitals in a trigonal bipyramidal arrangement, we must use five of the valence shell atomic orbitals (the s orbital,…
Теория молекулярных орбиталей I
Molecular orbital theory describes the distribution of electrons in molecules in the same way as the distribution of electrons in atoms is…
Молекулярная теория орбиталей II
The relative energy levels of atomic and molecular orbitals are typically shown in a molecular orbital diagram. For a diatomic molecule, the atomic…
Прямая Визуализация лазерному сверхбыстрой вращения молекул
We present a method for visualizing laser-induced, ultrafast molecular rotational wave packet dynamics. We have developed a new 2-dimensional Coulomb…
Проверка структуры и динамики межфазного воды с сканирование туннелирования микроскопии и спектроскопии
Water/solid interfaces are ubiquitous and play a key role in many environmental, biophysical, and technological processes. Resolving the internal…

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