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Hiiekel theory

Non-benzoid aromaticism. From the Hiiekel theory it follows that such systems as cyclopropenyl cation, cyclo-pentadienyl anion, cycloheptatrienyl cation (also called tropylium cation) and others must exhibit aromatic properties. [Pg.27]

P. Debye and E. Hiiekel, The Interionic Attraction Theory of Deviations from Ideal Behavior in Solution, Z. Phys. 24 185 (1923). [Pg.533]

FIGURE 6.6. Energy level sliil ls, obtained via peilurl)ation theory, which result on substitution of an atom ot II3 by one of liigher electronegativity. The two eases of central (a) and terminal (b) atom substitution are shown. (Within the Hiiekel model, described in Chapter 12, A/f = /2/3.) The pei uirbalioii used is an increase in U/ckvI relevant orbital by r>o . ... [Pg.85]

See other pages where Hiiekel theory is mentioned: [Pg.268]    [Pg.198]    [Pg.230]    [Pg.613]    [Pg.268]    [Pg.198]    [Pg.230]    [Pg.613]    [Pg.2]    [Pg.704]    [Pg.728]    [Pg.2]    [Pg.199]    [Pg.361]   
See also in sourсe #XX -- [ Pg.21 ]

See also in sourсe #XX -- [ Pg.107 ]

See also in sourсe #XX -- [ Pg.194 ]



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