Coulombic or electrostatic: Determination of the effects of substitution on the structures of 2-, 3-, and 4-picolylamine using Fourier transform microwave spectroscopy

IF 1.4 4区 物理与天体物理 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Journal of Molecular Spectroscopy Pub Date : 2024-01-06 DOI:10.1016/j.jms.2024.111874
Kaylee X. Shook, Lindsey M. McDivitt, Caleb D. Shiery, Josiah R. Bailey, Timothy J. McMahon, Robert A. Grimminger, Ryan G. Bird
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Abstract

In this study, the microwave spectra of 2-, 3-, and 4-picolyamine were recorded in a pulsed supersonic jet. With the aid of Natural Bond Orbital analysis, NCIplot, and Multiwfn, the structural effects of substitution were explored and then quantified by comparing semi-experimental geometries. The conformational landscape of each molecule is dominated by Van der Waals interactions between the amino group and the pyridine ring. Spectra of 2H, 13C, and 15N were also collected and analyzed.

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库仑还是静电?利用傅立叶变换微波光谱测定取代对 2-、3- 和 4-聚丙烯酰胺结构的影响
本研究在脉冲超音速射流中记录了 2-、3- 和 4-三聚氰胺的微波光谱。借助天然键轨道分析、NCIplot 和 Multiwfn,研究人员探索了取代的结构效应,并通过比较半实验几何图形对其进行了量化。氨基和吡啶环之间的范德华相互作用主导了每个分子的构象格局。此外,还收集并分析了 2H、13C 和 14N 光谱。
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来源期刊
CiteScore
2.70
自引率
21.40%
发文量
94
审稿时长
29 days
期刊介绍: The Journal of Molecular Spectroscopy presents experimental and theoretical articles on all subjects relevant to molecular spectroscopy and its modern applications. An international medium for the publication of some of the most significant research in the field, the Journal of Molecular Spectroscopy is an invaluable resource for astrophysicists, chemists, physicists, engineers, and others involved in molecular spectroscopy research and practice.
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