Figure 3From: Intramolecular H-bonding interaction in angular 3-π-EWG substituted imidazo[1,2-a]pyridines contributes to conformational preference HF/3-21G Potential energy plot of 3-nitroso-2-phenyl imidazo[1,2-a]pyridine. Potential energy (kcal/mol) vs N 4 -C 3 -N nitr -O nitr and C 3 -C 2 -C 1’ -C 2’ , dihedral angles (degrees). Back to article page