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الفصل 10

الترابط الكيميائي: الهندسة الجزيئية ونظريات الترابط

نظرية فسيبر VSEPR
Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular structure, including approximate bond angles around…
نظرية فسيبر VSEPR وتأثير الأزواج المنفردة
It is important to note that electron-pair geometry around a central atom is not the same thing as its molecular structure. Molecular structure…
توقع الهندسة الجزيئية
The following procedure uses VSEPR theory to determine the electron pair geometries and the molecular structures: Write the Lewis structure of…
الشكل الجزيئي والقطبية
Polar covalent bonds connect two atoms with differing electronegativities, leaving one atom with a partial positive charge (δ+) and the other…
نظرية الرابطة المتكافئة
Valence bond theory describes a covalent bond as the overlap of half-filled atomic orbitals (each containing a single electron) that yield a pair…
تهجين المدارات الذرّية I
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an…
تهجين المدارات الذرّية 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,…
نظرية المدارات الجزيئية I
Molecular orbital theory describes the distribution of electrons in molecules in the same way as the distribution of electrons in atoms is…
نظرية المدارات الجزيئية II
The relative energy levels of atomic and molecular orbitals are typically shown in a molecular orbital diagram. For a diatomic molecule, the atomic…
التصوير المباشر مدفوعة الليزر فائق السرعة الجزيئية دوران
We present a method for visualizing laser-induced, ultrafast molecular rotational wave packet dynamics. We have developed a new 2-dimensional Coulomb…
هاميلتونيون مثيرون لحساب أطياف الامتصاص البصري والخصائص الإلكترونية البصرية للمجاميع الجزيئية والمواد الصلبة
Rational design of disordered molecular aggregates and solids for optoelectronic applications relies on our ability to predict the properties of such…
سبر بنية وديناميات مياه السطح البيني مع مسح نفق مجهر والتحليل الطيفي
Water/solid interfaces are ubiquitous and play a key role in many environmental, biophysical, and technological processes. Resolving the internal…

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