Hi all, I came across this while researching a gene sequencing assignment and I cannot find out what the curved/dashed line means. Can anyone tell me please? Is it something to do with the negative symbol? Thanks
It actually hybrid form of the contributing resonance structures of the ion. The significance of the dashed line is that it shows delocalisation of negative charge over the two oxygen atoms.
Neither of the above two forms represent the actual compound
Actual compound is represented by the resonance hybrid :