intro - Alcohols are classifed as primary ( 1 ), secondary...

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Unformatted text preview: Alcohols are classifed as primary ( 1 ), secondary ( 2 ), or tertiary ( 3 ) depending on the number oF carbon atoms bonded to the carbon bearing the -OH group. There are two alcohols with molecular formula C 3 H 8 O. Based on the twin concepts that atoms are surrounded by regions of electron density. regions of electron density repel each other. Characteristics of a wave associated with a moving particle. Wavelength is designated by the symbol . MO theory begins with the hypothesis that electrons in atoms exist in atomic orbitals and electrons in molecules exist in molecular orbitals. Rules: Combination of n atomic orbitals (mathematically adding and subtracting wave functions) gives n MOs (new wave functions). MOs are arranged in order of increasing energy. MO Flling is governed by the same rules as for atomic orbitals: Aufbau principle: Fll beginning with LUMO Pauli exclusion principle: no more than 2e- in a MO Hund s rule: when two or more MOs of equivalent energy are available, add 1e- to each before Flling any one of them with 2e- . Figure 1.10 MOs derived from combination by (a) addition and (b) subtraction of two 1 s atomic orbitals. Bonding molecular orbital : A MO in which electrons have a lower energy than they would have in isolated atomic orbitals....
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intro - Alcohols are classifed as primary ( 1 ), secondary...

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