Mulliken was mentioned earlier because he proposed a definition of electronegativity, and hund because of hunds rule. Molecular orbital theory, even at this very basic level, allowed us to predict that no, were not going to see a true bond here, a strong bond. Na mecanica quantica, o orbital molecular e tratado como a. In picture 1 we show the molecular orbital structure of f2. Em quimica, a teoria dos orbitais moleculares tom explica as ligacoes covalentes. Molecular orbitals one approach to understanding the electronic structure of molecules is called molecular orbital theory. Aula 298 teoria dos orbitais moleculares ligantes e. Pdf download molecular orbital calculations for biological systems topics in physical chemistry pdf online. Teoria do orbital molecular teoria do orbital molecular. In contrast, the dissociation energy of a bond for hydrogen, and molecular hydrogen is everywhere around us, we see 432 kilojoules per mole. Molecular orbital theory is another theory to explain chemical bonding using orbitals.
Aula 298 teoria dos orbitais moleculares ligantes e antiligantes. This overlap forms a molecular bond between the two atoms with its own molecular orbital shape. The dashed lines show the remaining p orbitals which do. An antibonding orbital is a molecular orbital containing an electron outside the region between the two nuclei. It was developed about the same time valence bond theory was developed, primarily by mulliken and hund. In chemistry, a molecular orbital mo is a mathematical function describing the wavelike behavior of an electron in a molecule. Mulliken in 1932 as an abbreviation for oneelectron orbital. Molecular orbital theory is concerned with the combination of atomic orbitals to form new molecular orbitals. These orbitals follow the pauli exclusion principle in the. Mo theory assumes that the valence electrons of the atoms within a molecule become the valence electrons of the entire molecule. In molecularorbitaltheory,weimaginethat electronic.
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