CHAPTER 14 - CHAPTER 14 AROMATIC COMPOUNDS - - INTRODUCTION...

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CHAPTER 14 AROMATIC COMPOUNDS - - INTRODUCTION - - NOMENCLATURE - - STRUCTURE OF BENZENE - - HUCKEL’S RULE - - ANNULENES - - AROMATIC IONS - - OTHER AROMATIC COMPOUNDS - - SPECTROSCOPY
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INTRODUCTION - - AROMATIC - - USED TO REFER TO: FRAGRANCE - - NOWADAYS, REFERS TO: STRUCTURE , REACTIVITY NOMENCLATURE - - MONOSUBSTITUTED: SEE e.g. p. 624 – 625 - - DISUBSTITUTED: - - TRISUBSTITUTED: DO NOT USE : “ o, m, p ” DESIGNATIONS - - WHY ? BENZENE FARADAY 1825 1 2 3 4 ORTHO ; (o) ; 1 , 2 - META ; ? ; ? PARA ; ? ; ?
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( e.g. ? ) STRUCTURE OF BENZENE - - RESONANCE HYBRID BENZENE STRUCTURE: - - INTERESTING HISTORY: - - SEE p. 626, 627 - - cf. REACTIVITY OF ALKENES - - DISCREPANCY ? - - EXPLANATION ? - - SEE FIG. 14.1 p. 629 - - MODERN CONCEPT: - - HOW IS IT DIFFERENT FROM KEKULE’S PROPOSAL ? - - EQUILIBRIUM v RESONANCE - - EXAMINE THE C-C BONDS : - - DO PROBLEM : 14.2 p. 630 OR
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HUCKEL’S RULE - - EXAMINE MOLECULAR ORBITAL DIAGRAMS : - - SEE FIG. 14.4 p. 632 - - cf. FIG. 14.6 p. 633 - - cf. FIG. 14.7 p. 633 NOTE:
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This note was uploaded on 04/14/2008 for the course CHEM 2380 taught by Professor Dandekar during the Winter '07 term at North Texas.

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CHAPTER 14 - CHAPTER 14 AROMATIC COMPOUNDS - - INTRODUCTION...

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