It is important to be able to recognize the significant spectroscopic differences among isomers and other compounds with a similar molecular structure. Generally, analyzing the molecular structures and spectroscopic data to answer a few questions will help you identify how to distinguish among molecules with similar structures. The following questions are useful when using 1H-NMR to accomplish the goal:. 1. Are there differences in the number of expected spectroscopic signals?
2. Are there differences in how many signals are expected in specific chemical shift ranges (i. e. 0 to 70 ppm)?
3. Are there differences in chemical shifts between specific carbons in the isomeric structures that are significantly different? How many 13-NMR signals do you expect for each of the potentiall reaction products shown in the reaction in the introduction between blpheynyl and butanoyl chlorlde? Drag the appropriate labels to their respective targets View Available Hintts) Reset Help 1 23 4 56 7910 11 12 13 14 15 16 1718 19 signals predicted UPA name 1-(4-pheynylphenyl)butan-1-one 1-(3-pheynylpheny)butan 1-one Molecule ound 3 phenyl] butan-1-one 1-12-pheynylphenyl)butan-l-one