Carbon‐13 NMR chemical shifts are reported for nine tricyclic aromatic ketones formally derived from indanone. The influences of remote ring size, as well as linear, angular exo and angular endo ketone orientation are examined. Results are compared with available 1H NMR data. For indanone itself, based on selective 1H decoupling experiments, a recently reported CIDNP derived 13C signal assignment is shown to be in error. Copyright

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Journal Organic Magnetic Resonance
Buchanan, G.W, Isabelle, M.E., & Wightman, R.H. (1981). Linear and angular annelation effects on the 13C NMR spectra of tricyclic aromatic ketones. 1—annelated indanones. Organic Magnetic Resonance, 16(2), 156–159. doi:10.1002/mrc.1270160219