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Side reactions antibonding orbital

Inspection of this correlation diagram immediately reveals that there is a problem. One of the bonding orbitals at the left correlates with an antibonding orbital on the product side. Consequently, if orbital symmetry is to be conserved, two ground state ethylene molecules cannot combine via face-to-face approach to give a ground-state cyclobutane, or vice versa. This concerted reaction is symmetry forbidden. ... [Pg.331]

It is clearly seen that the HOMO-LUMO interaction leads to the formation of one bonding and one antibonding orbital, i.e. this is not a favourable interaction. The FMO approach also suggests that the 2 + 2 reaction may be possible if it could occur with bond formation on opposite sides (Antarafacial) for one of the fragments. [Pg.499]

See other pages where Side reactions antibonding orbital is mentioned: [Pg.53]    [Pg.8]    [Pg.353]    [Pg.172]    [Pg.510]    [Pg.195]    [Pg.1]    [Pg.106]    [Pg.103]    [Pg.3039]    [Pg.353]    [Pg.292]    [Pg.135]    [Pg.393]    [Pg.6498]    [Pg.181]    [Pg.56]    [Pg.364]    [Pg.1055]    [Pg.115]    [Pg.382]    [Pg.109]    [Pg.242]    [Pg.196]    [Pg.137]    [Pg.402]    [Pg.561]    [Pg.657]    [Pg.343]    [Pg.1397]    [Pg.348]    [Pg.364]    [Pg.314]    [Pg.652]    [Pg.347]    [Pg.184]    [Pg.936]    [Pg.238]    [Pg.215]    [Pg.765]    [Pg.817]    [Pg.936]    [Pg.19]    [Pg.395]    [Pg.410]    [Pg.377]    [Pg.9]   
See also in sourсe #XX -- [ Pg.464 , Pg.465 ]



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