Organic Basics (GOC) · Resonance and bond length
Consider the following molecules/species:
The correct order of carbon – oxygen double bond length is:
- (1)x y z
- (2)y z x
- (3)z x y
- (4)x z y
We corrected a printing error in the original paper
In structure (y) the source printed the lower group as “CH”; corrected in the figure to “CH” (propanone), the subscript copied from the upper CH of the same drawing.
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See the full 4 Apr 2026, Shift 2 paper