Lecture 6 Lewis structures

Kekul 1865 sur la constuon des substances aromaques

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Unformatted text preview: all formal charge values (0 is best) –  few atoms with a non- zero formal charge –  most electronega>ve element is 0 or nega>ve –  no adjacent posi>ve or nega>ve formal charges Bond Length And Bond Order •  Bond length is the distance between the nuclei of the two atoms in a bond •  Bond order is the number of electron pairs shared between the atoms •  As bond order increases, the bond length decreases and the bond energy increases, provided we are comparing bonds between the same elements Structure of benzene Aug. Kekulé (1865). "Sur la cons>tu>on des substances aroma>ques". Bulle9n de la Societe...
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