Organic Magnetic Resonance · 1971 · 70 citations · 18 references
Natural SciencesChemistryMedicinal ChemistryAnalytical ChemistryOrganic ChemistrySpectroscopyHeterocyclic ChemistryIntermolecular ForcesMolecular SpectroscopyCarbon-13 Nuclear Magnetic ResonanceOrganic Compound Analysis
Abstract The carbon‐13 chemical shifts of mono‐ and 1,3‐disubstituted adamantanes are reported. The effects caused by the substituents are compared with those met in aliphatic and alicyclic compounds. It is shown that the 1,4‐interactions have only minor importance in l‐substituted adamantanes. The influence of polar groups on the chemical shifts of γ‐ and δ‐carbon atoms is a typical ‘through‐the‐bonds’ interaction and correlates with inductive parameters of the substituents.
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An Extended Hückel Theory. I. Hydrocarbons
Roald Hoffmann · The Journal of Chemical Physics · 1963 · 4.6K citations
Carbon‐13 chemical shifts of bicyclic compounds
É. Lippmaa, Tõnis Pehk, Jaakko Paasiv́irta et al. · Organic Magnetic Resonance · 1970 · 151 citations