[Electronic properties of N-heteroaromatics. 32. H-nuclear magnetic resonance spectra of chloro- and fluoro-substituted pyrimidine derivatives: relationship between chemical shifts of ring and substituent protons and electron densities].
D002713:Chlorine; D004583:Electrons; D005461:Fluorine; D009682:Magnetic Resonance Spectroscopy; D011522:Protons; D011743:Pyrimidines; D013053:Spectrophotometry
D011522:Protons; D011743:Pyrimidines; D005461:Fluorine; D002713:Chlorine