A relationship between proton chemical shift and hybridization at carbon has been established in open-chain alkanes, suggesting that, in these compounds, proton shielding depends miainly on C–H bond electrons.
Proton chemical shift and localization in aliphatic open-chain hydrocarbons / S. A., Pozzoli; Lazzeretti, Paolo; F., Taddei. - In: JOURNAL OF THE CHEMICAL SOCIETY, CHEMICAL COMMUNICATIONS. - ISSN 0022-4936. - STAMPA. - 1973:(1973), pp. 536-537.