The NMR and IR spectroscopy of phenyl propenoic acid and its derivative P-Cl-phenyl propenoic acid was studied in detail. All the peaks in each spectrum were assigned. The NMR and IR spectroscopic difference between the trans-and cis-structure compound and the affection of P-Cl-substitution in benzene ring were discussed. The IR spectroscopic difference between the trans-and cis-structure is mainly due to the different strength of the intermolecular hydrogen bonding in each dimer and to the participation of the P-Cl-substituting group of the benzene ring in the π conjugate system to result in the change of NMR and IR spectra.
赵明坚, 花井一彦. 苯丙烯酸及其苯环对位氯取代衍生物的NMR和IR光谱学研究[J]. 浙江大学学报（医学版）, 1995, 24(3): 97-101.
Zhao Mingjian, Hanai Kazuhiko. NMR AND IR SPECTROSCOPIC STUDY OF PHENYL PROPENOIC ACID AND ITS DERIVATIVE P-CL-PHENYL PROPENOIC ACID. Journal of ZheJiang University(Medical Science), 1995, 24(3): 97-101.