Substituent chemical shifts were examined for the 2- and 3-thiophene derivatives of chalcone and compared to the thiophene series of derivatives with the phenyl series. The chemical shift values for the ${alpha}$-carbons of the enones showed and inverse correlation with the Hammett $sigma$ values, but the correlation coefficients were moderate (r = 0.836 - 0.878). On the other hand, the $eta$-carbons showed a normal correlation with excellent correlation coefficients (r = 0.994). The absolute magnitude of the $ ho$ values for the $alpha$-carbon are about half of those of the $eta$-carbon. The observation may be the result of a through-space transition of the electronic effect of the substituents in addition to the through bond transition.