CHEM 1300 Lecture 18: Multiple-Bonds
28 Aug 2018
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Document Summary
Amino acids are the building blocks of proteins. For all n, c and o: determine number of electron groups, determine the ideal bond angles, determine the hybridization, describe the bonding. Localized bonds do not explain color, conductivity and some molecular structures. Delocalized electrons are electrons shared between 3 or more atoms. Mos have been referred to briefly in class before, now they will be formally included. 1st principle: the total number of molecular orbitals produced by a set of interacting atomic orbitals is always equal to the number of interacting atomic orbitals. These orbitals can be added or subtracted. Causes high energy density between the two orbitals, leads to overlap and a bonding molecular orbital. This is a result of constructive interference between the wave functions. Causes low energy density between the two orbitals, there is no overlap and is called an antibonding molecular orbital.
