Study on Intermolecular Interaction between 4-Aminopyridine and Methacrylic Acid Using Two Dimensional FTIR Spectroscopy
LIU Xue-yong1,ZHOU Tao２,CHANG Kun1,WANG Lin1,ZHENG Min-xia1, LUO Yi-wei1
1. Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China 2. State Key Lab of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
Abstract：A two-dimensional infrared (2D IR) correlation spectroscopy technique has been introduced to study the intermolecular interaction between 4-aminopyridine and methacrylic acid. The type and relationship of the bond between 4-aminopyridine and methacrylic acid molecule could not be characterized directly using the one-dimensional FTIR spectroscopy. On the contrary, the interactions between 4-aminopyridine and methacrylic acid molecule were determined using 2D IR correlation spectroscopy. The synchronous cross peaks exist between stretching vibrations of hydroxyl group of methacrylic acid at 1 298 and 1 202 cm-1 and CN group of 4-aminopyridine at 1 531 cm-1, and between carbonyl group of methacrylic acid at 1 705 cm-1 and N—H group of 4-aminopyridine at 3 382 and 3 212 cm-1, respectively. According to the two-dimensional correlation rules, the interactions of static electricity and hydrogen bonding exist between 4-aminopyridine and methacrylic acid molecule. Such successful applications demonstrate that two-dimensional infrared correlation spectroscopy may be a convenient and effective means in the study of the intermolecular and intramolecular interaction.
刘学涌1,周涛2,常昆1,王蔺1,郑敏侠1,罗毅威1. 二维相关红外光谱研究4-氨基吡啶/甲基丙烯酸分子间相互作用[J]. 光谱学与光谱分析, 2008, 28(09): 2073-2076.
LIU Xue-yong1,ZHOU Tao２,CHANG Kun1,WANG Lin1,ZHENG Min-xia1, LUO Yi-wei1. Study on Intermolecular Interaction between 4-Aminopyridine and Methacrylic Acid Using Two Dimensional FTIR Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(09): 2073-2076.
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