Representative resonance forms

In each of the following pairs determine whether the two represent resonance forms of a single species or depict different substances If two structures are not resonance forms explain why... [Pg.52]

Which of the following pairs of structures represent resonance forms ... [Pg.69]

Cyclobutadiene is a rectangular molecule with two shorter double bonds and two longer single bonds. Why do the following structures not represent resonance forms ... [Pg.69]

The pairs of structures in parts (b), (c), and (d) represent resonance forms. [Pg.32]

For the absence of the two distinguishable forms I and / (as indicated in the introduction and implied by physical data already discussed), there are two possible interpretations Either the two formulas I and / represent resonance forms or two metastable forms exist, described by I and In the latter case the equilibration of I and / must be so fast that they have eluded the experiments reported. [Pg.59]

PROBLEM 9.30 Which of the following pairs represent resonance forms and which do not Explain your choices. [Pg.405]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...