Amine vs. carboxylic acid protonation in ortho-, meta-, and para-aminobenzoic acid: An IRMPD spectroscopy study

详细信息    查看全文

• 作者：Adam P. Cismesia ; Georgina R. Nicholls ; Nicolas C. Polfer ; ^{polfer@chem.ufl.edu}
• 关键词：IRMPD ; Gas phase ; Protonation ; Substitution ; Aromatic ; Isomers
• 刊名：Journal of Molecular Spectroscopy
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：332
• 期：Complete
• 页码：79-85
• 全文大小：1521 K
• 卷排序：332

文摘

Protonation for PABA is on the carboxylic acid, but it is the amine for MABA and OABA. For PABA and MABA resonance stabilization rationalizes the relative basicities. The exception to this rule is OABA, where the proton is on the amine.