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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

NMR AND IR SPECTROSCOPIC STUDY OF PHENYL PROPENOIC ACID AND ITS DERIVATIVE P-CL-PHENYL PROPENOIC ACID
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摘要 作者详细研究了苯丙烯酸及其苯环对位氯代衍生物的核磁共振(NMR)和红外线(IR)光谱学,对各图谱的谱峰作了指证。讨论了反式和顺式结构化合物的NMR和IR光谱学差异性以及苯环对位氯取代的影响,认为反式和顺式结构IR光谱的不同,主要为两者各自二聚体分子间氢键强弱不同所致;苯环对位氯取代基参与分子π共轭体系,并引起NMR和IR光谱的改变。 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 theπconjugate system to result in the change of NMR and IR spectra.
出处 《浙江医科大学学报》 CSCD 1995年第3期97-101,共5页
关键词 苯丙烯酸 氯苯基 丙烯酸 NMR 成像 分光光度法 Phenyl propenoic acid P-Cl-phenyl propenoic acid Nuclear magnetic resonance Spectrophotometry,infrared
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  • 1Cao G S,中国药科大学学报,1988年,19卷,307页

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